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"college-gpa", "name": "College GPA Calculator", "description": "Calculate term and projected cumulative college GPA from grade points, credits, and prior GPA.", "family": "structured", "category": "education", "canonical_url": "https://trustycalculator.com/education/college-gpa-calculator", "formula_version": "credit-weighted-gpa-v1", "risk": "maintained", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "U.S. Department of Education, Federal Student Aid", "title": "Academic progress and school-defined grading policies", "url": "https://studentaid.gov/understand-aid/eligibility/staying-eligible", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "colorado-paycheck", "name": "Colorado Paycheck Calculator", "description": "Estimate Colorado take-home pay with 2026 IRS and state withholding methods, FICA, and 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"https://www.irs.gov/businesses/small-businesses-self-employed/questions-and-answers-for-the-additional-medicare-tax", "reviewed_at": "2026-08-14" }, { "publisher": "Internal Revenue Service", "title": "Publication 15-B (2026), Employer's Tax Guide to Fringe Benefits", "url": "https://www.irs.gov/publications/p15b", "reviewed_at": "2026-08-14" }, { "publisher": "Colorado Department of Revenue", "title": "DR 1098 (10/21/25), 2026 Colorado Withholding Worksheet for Employers", "url": "https://tax.colorado.gov/sites/tax/files/documents/DR_1098_Colorado_Withholding_Worksheet_for_Employees.pdf", "reviewed_at": "2026-08-14" }, { "publisher": "Colorado Department of Labor and Employment, FAMLI Division", "title": "2026 FAMLI premium rate and contribution structure", "url": "https://content.govdelivery.com/accounts/CODLE/bulletins/4005988", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "concrete-block", "name": "Concrete Block Calculator", "description": "Estimate whole concrete 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"https://trustycalculator.com/construction/concrete-slab-calculator", "formula_version": "1.0.0", "risk": "maintained", "reviewed_at": "2026-08-13", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44, Appendix C: General Tables of Units of Measurement", "url": "https://www.nist.gov/pml/owm/si-units-length-area-volume-weight-mass-and-temperature", "reviewed_at": "2026-08-13" }, { "publisher": "National Ready Mixed Concrete Association", "title": "Concrete in Practice 8: Discrepancies in yield", "url": "https://www.nrmca.org/wp-content/uploads/2021/01/08pr.pdf", "reviewed_at": "2026-08-13" } ] }, { "calculator_id": "conduit-fill", "name": "Conduit Fill Calculator", "description": "Check common 2023 NEC EMT fill from THHN/THWN-2 wire sizes and quantities, or enter custom 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"mean-z-mean-t-wilson-counts-v2", "risk": "standard", "reviewed_at": "2026-08-22", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "repository_reviewed", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Confidence Limits for the Mean", "url": "https://www.itl.nist.gov/div898/handbook/eda/section3/eda352.htm", "reviewed_at": "2026-08-22" }, { "publisher": "National Institute of Standards and Technology", "title": "Confidence Interval", "url": "https://www.itl.nist.gov/div898/handbook/prc/section1/prc14.htm", "reviewed_at": "2026-08-22" }, { "publisher": "National Institute of Standards and Technology", "title": "Proportions Control Charts — Wilson Interval", "url": "https://itl.nist.gov/div898/handbook/prc/section2/prc241.htm", "reviewed_at": "2026-08-22" }, { "publisher": "National Institute of Standards and Technology", "title": "Critical Values of the 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"publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Google Ads Help", "title": "Cost-per-thousand impressions (CPM)", "url": "https://support.google.com/google-ads/answer/6310", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "credit-card-payoff", "name": "Credit Card Payoff Calculator", "description": "Estimate payoff time and interest for a fixed payment or a modeled percentage-or-floor minimum payment, with optional extra payments.", "family": "structured", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/credit-card-payoff-calculator", "formula_version": "fixed-or-minimum-extra-v2", "risk": "maintained", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Consumer Financial Protection Bureau", "title": "How does my credit card 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optional DRIP and dividend-payment frequency.", "family": "structured", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/dividend-calculator", "formula_version": "dividend-drip-v2", "risk": "maintained", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "U.S. Securities and Exchange Commission, Investor.gov", "title": "Stocks — dividends and investor returns", "url": "https://www.investor.gov/introduction-investing/investing-basics/investment-products/stocks", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "dividend-discount-model", "name": "Dividend Discount Model Calculator", "description": "Dividend Discount Model Calculator: calculate Intrinsic value from Calculation mode, with transparent formulas, assumptions, and sources.", "family": "structured", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/dividend-discount-model-calculator", "formula_version": "zero-gordon-explicit-cashflows-v1", "risk": "high", "reviewed_at": "2026-08-24", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Principles of Finance 2e — Dividend Discount Models", "url": "https://openstax.org/books/principles-finance-2e/pages/11-2-dividend-discount-models-ddms", "reviewed_at": "2026-08-24" }, { "publisher": "Aswath Damodaran, New York University Stern School of Business", "title": "The Dividend Discount Model", "url": "https://pages.stern.nyu.edu/~adamodar/pdfiles/eqnotes/ddm.pdf", "reviewed_at": "2026-08-24" }, { "publisher": "OpenStax, Rice University", "title": "Principles of Finance 2e — Applications of Time Value of Money in Finance", "url": 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"strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax", "title": "Prealgebra 2e", "url": "https://openstax.org/details/books/prealgebra-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "free-cash-flow", "name": "Free Cash Flow Calculator", "description": "Free Cash Flow Calculator: calculate After-tax operating profit from EBIT, with transparent formulas, assumptions, and sources.", "family": "structured", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/free-cash-flow-calculator", "formula_version": "fcff-nopat-delta-nwc-v1", "risk": "maintained", "reviewed_at": "2026-08-24", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Principles of Finance 2e — Operating Cash Flow and Free Cash Flow to the Firm", "url": "https://openstax.org/books/principles-finance-2e/pages/5-6-operating-cash-flow-and-free-cash-flow-to-the-firm-fcff", "reviewed_at": "2026-08-24" }, { "publisher": "Aswath Damodaran, New York University Stern School of Business", "title": "Variables Used in the Data Set — Free Cash Flow to Firm (FCFF)", "url": "https://pages.stern.nyu.edu/~adamodar/New_Home_Page/datafile/variable.htm", "reviewed_at": "2026-08-24" } ] }, { "calculator_id": "freight-class", "name": "Freight Class Calculator", "description": "Calculate packaged volume and density from dimensions, piece count, and weight, then estimate an LTL freight class.", "family": "structured", "category": "business", "canonical_url": "https://trustycalculator.com/business/freight-class-calculator", "formula_version": "2025.1.0", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Motor Freight Traffic Association", "title": "Decoding Density: The Freight Factor You Cannot Afford to Overlook", "url": "https://nmfta.org/news/decoding-density-the-freight-factor-you-cant-afford-to-overlook/", "reviewed_at": "2026-08-14" }, { "publisher": "National Motor Freight Traffic Association", "title": "ClassIT+ — Current National Motor Freight Classification Data", "url": "https://classitplus.nmfta.org/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "fund-subscription", "name": "Fund Subscription Calculator", "description": "Fund Subscription Calculator: calculate Effective fee rate from Subscription amount, with transparent formulas, assumptions, and sources.", "family": "structured", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/fund-subscription-calculator", "formula_version": "front-end-net-amount-units-v1", "risk": "high", "reviewed_at": "2026-08-24", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "China Securities Regulatory Commission, Shenzhen Office", "title": "How Are Fund Fees Calculated?", "url": "https://www.csrc.gov.cn/shenzhen/c105614/c1575407/content.shtml", "reviewed_at": "2026-08-24" }, { "publisher": "China Securities Regulatory Commission", "title": "Rules on Sales Fees for Publicly Offered Securities Investment Funds", "url": "https://www.csrc.gov.cn/csrc/c101954/c7606091/content.shtml", "reviewed_at": "2026-08-24" } ] }, { "calculator_id": "future-value", "name": "Future Value Calculator", "description": "Project future value from an initial balance and signed monthly deposits or withdrawals at the beginning or end of each month.", "family": "structured", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/future-value-calculator", "formula_version": "signed-monthly-cashflow-fv-v2", "risk": "maintained", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "U.S. Securities and Exchange Commission, Investor.gov", "title": "Compound Interest Calculator", "url": "https://www.investor.gov/financial-tools-calculators/calculators/compound-interest-calculator", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "gear-ratio", "name": "Gear Ratio Calculator", "description": "Calculate single-stage or compound multi-stage gear ratio and ideal output speed from tooth counts.", "family": "structured", "category": "math", "canonical_url": "https://trustycalculator.com/math/gear-ratio-calculator", "formula_version": "single-or-multi-stage-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax", "title": "Prealgebra 2e", "url": "https://openstax.org/details/books/prealgebra-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "georgia-paycheck", "name": "Georgia Paycheck Calculator", "description": "Estimate Georgia take-home pay with 2026 IRS and state withholding methods, FICA, and supported payroll premiums.", "family": "structured", "category": "paycheck", "canonical_url": "https://trustycalculator.com/paycheck/georgia-paycheck-calculator", "formula_version": "2026.3.0", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Internal Revenue Service", "title": "Publication 15-T (2026), Federal Income Tax Withholding Methods", "url": "https://www.irs.gov/publications/p15t", "reviewed_at": "2026-08-14" }, { "publisher": "Social Security Administration", "title": "Contribution and Benefit Base Determination", "url": "https://www.ssa.gov/OACT/COLA/cbbdet.html", "reviewed_at": "2026-08-14" }, { "publisher": "Internal Revenue Service", "title": "Questions and Answers for the Additional Medicare Tax", "url": "https://www.irs.gov/businesses/small-businesses-self-employed/questions-and-answers-for-the-additional-medicare-tax", "reviewed_at": "2026-08-14" }, { "publisher": "Internal Revenue Service", "title": "Publication 15-B (2026), Employer's Tax Guide to Fringe Benefits", "url": "https://www.irs.gov/publications/p15b", "reviewed_at": "2026-08-14" }, { "publisher": "Georgia Department of Revenue", "title": "2026 Employer's Tax Guide (updated June 2026)", "url": "https://dor.georgia.gov/document/document-document/2026-employers-tax-guide-updated-june-2026/download", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "gold", "name": "Gold Calculator", "description": "Estimate net pure gold, melt value, and payout using any karat or fineness, entered price, currency, and payout rate.", "family": "structured", "category": "metals", "canonical_url": "https://trustycalculator.com/metals/gold-calculator", "formula_version": "user-priced-net-metal-v2", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Precious Metals Conversion Information", "url": "https://www.nist.gov/pml/owm/metric-si/unit-conversion/precious-metals-conversion-information", "reviewed_at": "2026-08-14" }, { "publisher": "Federal Trade Commission", "title": "Buying Platinum, Gold, and Silver Jewelry", "url": "https://consumer.ftc.gov/articles/buying-platinum-gold-and-silver-jewelry", "reviewed_at": "2026-08-14" }, { "publisher": "Commodity Futures Trading Commission", "title": "10 Things to Ask Before Buying Physical Gold, Silver, or Other Metals", "url": "https://www.cftc.gov/LearnAndProtect/AdvisoriesAndArticles/Metals10Things.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "golf-handicap", "name": "Golf Handicap Calculator", "description": "Estimate a golf Handicap Index from adjusted scores, course ratings, slopes, and dated WHS rules.", "family": "structured", "category": "lifestyle", "canonical_url": "https://trustycalculator.com/lifestyle/golf-handicap-calculator", "formula_version": "whs-2024-safeguards-2.0.0", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "United States Golf Association", "title": "Rules of Handicapping — Effective 2024", "url": "https://www.usga.org/content/dam/usga/pdf/2024-revision/2024-Rules-of-Handicapping-USGA.pdf", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "gravel", "name": "Gravel Calculator", "description": "Estimate gravel volume and weight from area, depth, density, and allowance.", "family": "legacy", "category": "construction", "canonical_url": "https://trustycalculator.com/construction/gravel-calculator", "formula_version": "1.0.0", "risk": "maintained", "reviewed_at": "2026-08-13", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44, Appendix C: General Tables of Units of Measurement", "url": "https://www.nist.gov/pml/owm/si-units-length-area-volume-weight-mass-and-temperature", "reviewed_at": "2026-08-13" }, { "publisher": "Federal Highway Administration", "title": "Estimating table: weights and measures", "url": "https://highways.dot.gov/federal-lands/design/tools/cfl/estimating-table.pdf", "reviewed_at": "2026-08-13" } ] }, { "calculator_id": "high-school-gpa", "name": "High School GPA Calculator", "description": "Estimate unweighted and weighted high-school GPA from grade points, credits, and course bonuses.", "family": "structured", "category": "education", "canonical_url": "https://trustycalculator.com/education/high-school-gpa-calculator", "formula_version": "weighted-gpa-v1", "risk": "maintained", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "U.S. Department of Education, Federal Student Aid", "title": "Academic progress and school-defined grading policies", "url": "https://studentaid.gov/understand-aid/eligibility/staying-eligible", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "high-yield-savings", "name": "High-Yield Savings Calculator", "description": "Project savings from APY and signed monthly cash flow, with deposits or withdrawals timed at the beginning or end of each month.", "family": "structured", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/high-yield-savings-calculator", "formula_version": "apy-signed-cashflow-v2", "risk": "maintained", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Consumer Financial Protection Bureau", "title": "Annual percentage yield — Regulation DD § 1030.2(c)", "url": "https://www.consumerfinance.gov/rules-policy/regulations/1030/2/", "reviewed_at": "2026-08-14" }, { "publisher": "U.S. Securities and Exchange Commission, Investor.gov", "title": "Compound Interest Calculator", "url": "https://www.investor.gov/financial-tools-calculators/calculators/compound-interest-calculator", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "illinois-paycheck", "name": "Illinois Paycheck Calculator", "description": "Estimate Illinois take-home pay with 2026 IRS and state withholding methods, FICA, and supported payroll premiums.", "family": "structured", "category": "paycheck", "canonical_url": "https://trustycalculator.com/paycheck/illinois-paycheck-calculator", "formula_version": "2026.3.0", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Internal Revenue Service", "title": "Publication 15-T (2026), Federal Income Tax Withholding Methods", "url": "https://www.irs.gov/publications/p15t", "reviewed_at": "2026-08-14" }, { "publisher": "Social Security Administration", "title": "Contribution and Benefit Base Determination", "url": "https://www.ssa.gov/OACT/COLA/cbbdet.html", "reviewed_at": "2026-08-14" }, { "publisher": "Internal Revenue Service", "title": "Questions and Answers for the Additional Medicare Tax", "url": "https://www.irs.gov/businesses/small-businesses-self-employed/questions-and-answers-for-the-additional-medicare-tax", "reviewed_at": "2026-08-14" }, { "publisher": "Internal Revenue Service", "title": "Publication 15-B (2026), Employer's Tax Guide to Fringe Benefits", "url": "https://www.irs.gov/publications/p15b", "reviewed_at": "2026-08-14" }, { "publisher": "Illinois Department of Revenue", "title": "2026 IL-700-T withholding guide and tables", "url": "https://tax.illinois.gov/forms/withholding/currentyear/il-700-t-withholding-guide-tables.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "indiana-paycheck", "name": "Indiana Paycheck Calculator", "description": "Estimate Indiana take-home pay with 2026 IRS and state withholding methods, FICA, and supported payroll premiums.", "family": "structured", "category": "paycheck", "canonical_url": "https://trustycalculator.com/paycheck/indiana-paycheck-calculator", "formula_version": "2026.3.0", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Internal Revenue Service", "title": "Publication 15-T (2026), Federal Income Tax Withholding Methods", "url": "https://www.irs.gov/publications/p15t", "reviewed_at": "2026-08-14" }, { "publisher": "Social Security Administration", "title": "Contribution and Benefit Base Determination", "url": "https://www.ssa.gov/OACT/COLA/cbbdet.html", "reviewed_at": "2026-08-14" }, { "publisher": "Internal Revenue Service", "title": "Questions and Answers for the Additional Medicare Tax", "url": "https://www.irs.gov/businesses/small-businesses-self-employed/questions-and-answers-for-the-additional-medicare-tax", "reviewed_at": "2026-08-14" }, { "publisher": "Internal Revenue Service", "title": "Publication 15-B (2026), Employer's Tax Guide to Fringe Benefits", "url": "https://www.irs.gov/publications/p15b", "reviewed_at": "2026-08-14" }, { "publisher": "Indiana Department of Revenue", "title": "Departmental Notice #1 — 2026 state and county withholding rates", "url": "https://www.in.gov/dor/files/dn01.pdf", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "linear-feet", "name": "Linear Feet Calculator", "description": "Calculate total linear feet from measured runs or convert covered area using a known material width.", "family": "structured", "category": "construction", "canonical_url": "https://trustycalculator.com/construction/linear-feet-calculator", "formula_version": "1.0.0", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Circumference, Area and Volume", "url": "https://www.nist.gov/pml/owm/circumference-area-and-volume", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Unit Conversion", "url": "https://www.nist.gov/pml/owm/si-units-length", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "long-division", "name": "Long Division Calculator", "description": "Divide two integers and show quotient, remainder, decimal value, identity check, and digit-by-digit steps.", "family": "structured", "category": "math", "canonical_url": "https://trustycalculator.com/math/long-division-calculator", "formula_version": "digit-steps-v3", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax", "title": "Prealgebra 2e", "url": "https://openstax.org/details/books/prealgebra-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "markup", "name": "Markup Calculator", "description": "Solve cost, selling price, or markup percentage from the other two values and report profit and margin.", "family": "structured", "category": "business", "canonical_url": "https://trustycalculator.com/business/markup-calculator", "formula_version": "solve-any-two-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax", "title": "Prealgebra 2e", "url": "https://openstax.org/details/books/prealgebra-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "maryland-paycheck", "name": "Maryland Paycheck Calculator", "description": "Estimate Maryland take-home pay with 2026 IRS and state withholding methods, FICA, and supported payroll premiums.", "family": "structured", "category": "paycheck", "canonical_url": "https://trustycalculator.com/paycheck/maryland-paycheck-calculator", "formula_version": "2026.3.0", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Internal Revenue Service", "title": "Publication 15-T (2026), Federal Income Tax Withholding Methods", "url": "https://www.irs.gov/publications/p15t", "reviewed_at": "2026-08-14" }, { "publisher": "Social Security Administration", "title": "Contribution and Benefit Base Determination", "url": "https://www.ssa.gov/OACT/COLA/cbbdet.html", "reviewed_at": "2026-08-14" }, { "publisher": "Internal Revenue Service", "title": "Questions and Answers for the Additional Medicare Tax", "url": "https://www.irs.gov/businesses/small-businesses-self-employed/questions-and-answers-for-the-additional-medicare-tax", "reviewed_at": "2026-08-14" }, { "publisher": "Internal Revenue Service", "title": "Publication 15-B (2026), Employer's Tax Guide to Fringe Benefits", "url": "https://www.irs.gov/publications/p15b", "reviewed_at": "2026-08-14" }, { "publisher": "Comptroller of Maryland", "title": "Maryland Withholding Tax Facts, January–December 2026", "url": "https://www.marylandcomptroller.gov/content/dam/mdcomp/tax/legal-publications/facts/withholding-tax-facts-2026.pdf", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "mean-absolute-deviation", "name": "Mean Absolute Deviation Calculator", "description": "Calculate mean absolute deviation about the arithmetic mean for a list of observations.", "family": "structured", "category": "math", "canonical_url": "https://trustycalculator.com/math/mean-absolute-deviation-calculator", "formula_version": "1.0.0", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax", "title": "Introductory Statistics 2e", "url": "https://openstax.org/details/books/introductory-statistics-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "michigan-paycheck", "name": "Michigan Paycheck Calculator", "description": "Estimate Michigan take-home pay with 2026 IRS and state withholding methods, FICA, and supported payroll premiums.", "family": "structured", "category": "paycheck", "canonical_url": "https://trustycalculator.com/paycheck/michigan-paycheck-calculator", "formula_version": "2026.3.0", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Internal Revenue Service", "title": "Publication 15-T (2026), Federal Income Tax Withholding Methods", "url": "https://www.irs.gov/publications/p15t", "reviewed_at": "2026-08-14" }, { "publisher": "Social Security Administration", "title": "Contribution and Benefit Base Determination", "url": "https://www.ssa.gov/OACT/COLA/cbbdet.html", "reviewed_at": "2026-08-14" }, { "publisher": "Internal Revenue Service", "title": "Questions and Answers for the Additional Medicare Tax", "url": "https://www.irs.gov/businesses/small-businesses-self-employed/questions-and-answers-for-the-additional-medicare-tax", "reviewed_at": "2026-08-14" }, { "publisher": "Internal Revenue Service", "title": "Publication 15-B (2026), Employer's Tax Guide to Fringe Benefits", "url": "https://www.irs.gov/publications/p15b", "reviewed_at": "2026-08-14" }, { "publisher": "Michigan Department of Treasury", "title": "2026 withholding rate and personal exemption amount", "url": "https://www.michigan.gov/taxes/business-taxes/withholding/calendar-year-tax-information", "reviewed_at": "2026-08-14" }, { "publisher": "City of Detroit", "title": "2026 Detroit Income Tax Withholding Guide", "url": "https://detroitmi.gov/departments/office-chief-financial-officer/ocfo-divisions/office-treasury/income-tax", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "minnesota-paycheck", "name": "Minnesota Paycheck Calculator", "description": "Estimate Minnesota take-home pay with 2026 IRS and state withholding methods, FICA, and supported payroll premiums.", "family": "structured", "category": "paycheck", "canonical_url": "https://trustycalculator.com/paycheck/minnesota-paycheck-calculator", "formula_version": "2026.3.0", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Internal Revenue Service", "title": "Publication 15-T (2026), Federal Income Tax Withholding Methods", "url": "https://www.irs.gov/publications/p15t", "reviewed_at": "2026-08-14" }, { "publisher": "Social Security Administration", "title": "Contribution and Benefit Base Determination", "url": "https://www.ssa.gov/OACT/COLA/cbbdet.html", "reviewed_at": "2026-08-14" }, { "publisher": "Internal Revenue Service", "title": "Questions and Answers for the Additional Medicare Tax", "url": "https://www.irs.gov/businesses/small-businesses-self-employed/questions-and-answers-for-the-additional-medicare-tax", "reviewed_at": "2026-08-14" }, { "publisher": "Internal Revenue Service", "title": "Publication 15-B (2026), Employer's Tax Guide to Fringe Benefits", "url": "https://www.irs.gov/publications/p15b", "reviewed_at": "2026-08-14" }, { "publisher": "Minnesota Department of Revenue", "title": "2026 Minnesota Withholding Tax Instructions and Tables", "url": "https://www.revenue.state.mn.us/sites/default/files/2025-12/wh-inst-26.pdf", "reviewed_at": "2026-08-14" }, { "publisher": "Minnesota Department of Employment and Economic Development", "title": "Minnesota Paid Leave 2026 premium rate and employee deduction limit", "url": "https://mn.gov/deed/paidleave/employers/premiums/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "missouri-paycheck", "name": "Missouri Paycheck Calculator", "description": "Estimate Missouri take-home pay with 2026 IRS and state withholding methods, FICA, and supported payroll premiums.", "family": "structured", "category": "paycheck", "canonical_url": "https://trustycalculator.com/paycheck/missouri-paycheck-calculator", "formula_version": "2026.3.0", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Internal Revenue Service", "title": "Publication 15-T (2026), Federal Income Tax Withholding Methods", "url": "https://www.irs.gov/publications/p15t", "reviewed_at": "2026-08-14" }, { "publisher": "Social Security Administration", "title": "Contribution and Benefit Base Determination", "url": "https://www.ssa.gov/OACT/COLA/cbbdet.html", "reviewed_at": "2026-08-14" }, { "publisher": "Internal Revenue Service", "title": "Questions and Answers for the Additional Medicare Tax", "url": "https://www.irs.gov/businesses/small-businesses-self-employed/questions-and-answers-for-the-additional-medicare-tax", "reviewed_at": "2026-08-14" }, { "publisher": "Internal Revenue Service", "title": "Publication 15-B (2026), Employer's Tax Guide to Fringe Benefits", "url": "https://www.irs.gov/publications/p15b", "reviewed_at": "2026-08-14" }, { "publisher": "Missouri Department of Revenue", "title": "2026 Missouri Withholding Tax Formula", "url": "https://dor.mo.gov/forms/Withholding%20Formula_2026.pdf", "reviewed_at": "2026-08-14" }, { "publisher": "City of St. Louis", "title": "Earnings Tax information", "url": "https://www.stlouis-mo.gov/government/departments/collector/earnings-tax/", "reviewed_at": "2026-08-14" }, { "publisher": "City of Kansas City, Missouri", "title": "Earnings Tax information", "url": "https://www.kcmo.gov/city-hall/departments/finance/tax-home/earnings-tax", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "money-multiplier", "name": "Money Multiplier Calculator", "description": "Money Multiplier Calculator: calculate Textbook money multiplier from Calculation mode, with transparent formulas, assumptions, and sources.", "family": "structured", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/money-multiplier-calculator", "formula_version": "textbook-simple-and-complete-v1", "risk": "maintained", "reviewed_at": "2026-08-24", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "International Monetary Fund", "title": "Monetary and Financial Statistics Manual and Compilation Guide — Chapter 6", "url": "https://www.imf.org/external/pubs/ft/mfsmcg/c6.pdf", "reviewed_at": "2026-08-24" }, { "publisher": "Board of Governors of the Federal Reserve System", "title": "The Money Multiplier: Fact or Fiction?", "url": "https://www.federalreserve.gov/pubs/feds/2010/201041/index.html", "reviewed_at": "2026-08-24" } ] }, { "calculator_id": "mortgage-recast", "name": "Mortgage Recast Calculator", "description": "Estimate a new principal-and-interest payment after a lump-sum mortgage recast.", "family": "structured", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/mortgage-recast-calculator", "formula_version": "reamortization-v1", "risk": "maintained", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Fannie Mae", "title": "Processing Additional Principal Payments", "url": "https://servicing-guide.fanniemae.com/svc/c-1.2-01/processing-additional-principal-payments", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "mulch", "name": "Mulch Calculator", "description": "Estimate mulch volume and whole bags for landscape beds.", "family": "legacy", "category": "construction", "canonical_url": "https://trustycalculator.com/construction/mulch-calculator", "formula_version": "1.0.0", "risk": "maintained", "reviewed_at": "2026-08-13", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44, Appendix C: General Tables of Units of Measurement", "url": "https://www.nist.gov/pml/owm/si-units-length-area-volume-weight-mass-and-temperature", "reviewed_at": "2026-08-13" } ] }, { "calculator_id": "new-york-paycheck", "name": "New York Paycheck Calculator", "description": "Estimate New York take-home pay with 2026 IRS and state withholding methods, FICA, and supported payroll premiums.", "family": "structured", "category": "paycheck", "canonical_url": "https://trustycalculator.com/paycheck/new-york-paycheck-calculator", "formula_version": "2026.3.0", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Internal Revenue Service", "title": "Publication 15-T (2026), Federal Income Tax Withholding Methods", "url": "https://www.irs.gov/publications/p15t", "reviewed_at": "2026-08-14" }, { "publisher": "Social Security Administration", "title": "Contribution and Benefit Base Determination", "url": "https://www.ssa.gov/OACT/COLA/cbbdet.html", "reviewed_at": "2026-08-14" }, { "publisher": "Internal Revenue Service", "title": "Questions and Answers for the Additional Medicare Tax", "url": "https://www.irs.gov/businesses/small-businesses-self-employed/questions-and-answers-for-the-additional-medicare-tax", "reviewed_at": "2026-08-14" }, { "publisher": "Internal Revenue Service", "title": "Publication 15-B (2026), Employer's Tax Guide to Fringe Benefits", "url": "https://www.irs.gov/publications/p15b", "reviewed_at": "2026-08-14" }, { "publisher": "New York State Department of Taxation and Finance", "title": "NYS-50-T-NYS (1/26), New York State withholding methods", "url": "https://www.tax.ny.gov/pdf/publications/withholding/nys50_t_nys.pdf", "reviewed_at": "2026-08-14" }, { "publisher": "New York State Department of Taxation and Finance", "title": "NYS-50-T-NYC (1/26), New York City withholding methods", "url": "https://www.tax.ny.gov/pdf/publications/withholding/nys50_t_nyc.pdf", "reviewed_at": "2026-08-14" }, { "publisher": "New York State Department of Taxation and Finance", "title": "NYS-50-T-Y (1/26), Yonkers withholding methods", "url": "https://www.tax.ny.gov/pdf/publications/withholding/nys50_t_y.pdf", "reviewed_at": "2026-08-14" }, { "publisher": "New York State Workers' Compensation Board", "title": "New York Paid Family Leave employee contribution rate and cap for 2026", "url": "https://www.wcb.ny.gov/content/main/PressRe/paid-family-leave-2026.jsp", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "no-vig", "name": "No-Vig Odds Calculator", "description": "Convert odds to implied probabilities and normalize a market to estimated no-vig probabilities and fair odds.", "family": "structured", "category": "lifestyle", "canonical_url": "https://trustycalculator.com/lifestyle/no-vig-calculator", "formula_version": "odds-formats-methods-2.0.0", "risk": "maintained", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax", "title": "Introductory Statistics 2e — Probability Topics", "url": "https://openstax.org/details/books/introductory-statistics-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "nps", "name": "Net Promoter Score Calculator", "description": "Calculate Net Promoter Score from counts for ratings 0–10 or from aggregate response groups.", "family": "structured", "category": "business", "canonical_url": "https://trustycalculator.com/business/nps-calculator", "formula_version": "rating-counts-or-aggregate-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Qualtrics", "title": "What is Net Promoter Score (NPS)?", "url": "https://www.qualtrics.com/experience-management/customer/net-promoter-score/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "npv-irr", "name": "NPV and IRR Calculator", "description": "NPV and IRR Calculator: calculate Net present value from Cash flows, with transparent formulas, assumptions, and sources.", "family": "structured", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/npv-irr-calculator", "formula_version": "periodic-conventional-cashflow-bisection-v1", "risk": "high", "reviewed_at": "2026-08-24", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Principles of Finance 2e — Net Present Value Method", "url": "https://openstax.org/books/principles-finance-2e/pages/16-2-net-present-value-npv-method", "reviewed_at": "2026-08-24" }, { "publisher": "OpenStax, Rice University", "title": "Principles of Finance 2e — Internal Rate of Return Method", "url": "https://openstax.org/books/principles-finance-2e/pages/16-3-internal-rate-of-return-irr-method", "reviewed_at": "2026-08-24" } ] }, { "calculator_id": "op-construction-brick", "name": "Brick Calculator", "description": "Calculate brick with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "construction", "canonical_url": "https://trustycalculator.com/construction/brick-calculator", "formula_version": "construction-brick-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "Concrete Masonry & Hardscapes Association", "title": "Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications", "url": "https://www.cmha.org/resource/cmu-tec-001/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-construction-concrete-cylinder", "name": "Concrete Cylinder Calculator", "description": "Calculate concrete cylinder with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "construction", "canonical_url": "https://trustycalculator.com/construction/concrete-cylinder-calculator", "formula_version": "construction-concrete-cylinder-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-construction-cord-wood", "name": "Cord Wood Calculator", "description": "Calculate cord wood with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "construction", "canonical_url": "https://trustycalculator.com/construction/cord-wood-calculator", "formula_version": "construction-cord-wood-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "NIST Handbook 133 — Checking the Net Contents of Packaged Goods", "url": "https://nvlpubs.nist.gov/nistpubs/hb/2025/NIST.HB.133-2026.pdf", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-construction-curtain-size", "name": "Curtain Size Calculator", "description": "Calculate curtain size with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "construction", "canonical_url": "https://trustycalculator.com/construction/curtain-size-calculator", "formula_version": "construction-curtain-size-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-construction-limestone", "name": "Limestone Calculator", "description": "Calculate limestone with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "construction", "canonical_url": "https://trustycalculator.com/construction/limestone-calculator", "formula_version": "construction-limestone-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-construction-paver-sand", "name": "Paver Sand Calculator", "description": "Calculate paver sand with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "construction", "canonical_url": "https://trustycalculator.com/construction/paver-sand-calculator", "formula_version": "construction-paver-sand-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-construction-picture-frame", "name": "Picture Frame Calculator", "description": "Calculate picture frame with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "construction", "canonical_url": "https://trustycalculator.com/construction/picture-frame-calculator", "formula_version": "construction-picture-frame-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-construction-roof-shingle", "name": "Roof Shingle Calculator", "description": "Calculate roof shingle with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "construction", "canonical_url": "https://trustycalculator.com/construction/roof-shingle-calculator", "formula_version": "construction-roof-shingle-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "GAF", "title": "What Is a Roofing Square?", "url": "https://www.gaf.com/en-us/blog/your-home/what-is-a-roofing-square-f955fe18-daf9-4b0c-b78e-28ca178caa35", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-acreage", "name": "Acreage Calculator", "description": "Calculate acreage with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/acreage-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-acres-to-hectares", "name": "Acres To Hectares Calculator", "description": "Calculate acres to hectares with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/acres-to-hectares-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-atm", "name": "Atm Calculator", "description": "Calculate atm with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/atm-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-bar-to-psi", "name": "Bar To Psi Calculator", "description": "Calculate bar to psi with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/bar-to-psi-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-bar-to-psig", "name": "Bar To PSIG Calculator", "description": "Calculate bar to psig with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/bar-to-psig-calculator", "formula_version": "gauge-pressure-to-psig-v3", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-byte", "name": "Byte Calculator", "description": "Calculate byte with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/byte-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-cc-to-ml", "name": "Cc To ML Calculator", "description": "Calculate cc to ml with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/cc-to-ml-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-celsius-to-fahrenheit", "name": "Celsius To Fahrenheit Calculator", "description": "Calculate celsius to fahrenheit with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/celsius-to-fahrenheit-calculator", "formula_version": "temperature-affine-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-centimeter", "name": "Centimeter Calculator", "description": "Calculate centimeter with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/centimeter-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-cm-height", "name": "Cm Height Calculator", "description": "Calculate cm height with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/cm-height-calculator", "formula_version": "centimeter-height-bidirectional-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-cm-to-ft-in", "name": "Cm To Ft In Calculator", "description": "Calculate cm to ft in with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/cm-to-ft-in-calculator", "formula_version": "centimeters-to-feet-inches-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-cm-to-in", "name": "Cm To In Calculator", "description": "Calculate cm to in with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/cm-to-in-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-cm-to-m", "name": "Cm To M Calculator", "description": "Calculate cm to m with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/cm-to-m-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-cm-to-mm", "name": "Cm To MM Calculator", "description": "Calculate cm to mm with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/cm-to-mm-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-cubic-feet-to-gallons", "name": "Cubic Feet To Gallons Calculator", "description": "Calculate cubic feet to gallons with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/cubic-feet-to-gallons-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-cups-to-oz", "name": "Cups To Oz Calculator", "description": "Calculate cups to oz with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/cups-to-oz-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-cups-to-pints", "name": "Cups To Pints Calculator", "description": "Calculate cups to pints with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/cups-to-pints-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-cups-to-quarts", "name": "Cups To Quarts Calculator", "description": "Calculate cups to quarts with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/cups-to-quarts-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-days-to-years", "name": "Days To Years Calculator", "description": "Calculate days to years with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/days-to-years-calculator", "formula_version": "gregorian-calendar-year-conversion-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "U.S. Naval Observatory", "title": "Leap Years", "url": "https://aa.usno.navy.mil/faq/leap_years", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-dimes-to-dollars", "name": "Dimes To Dollars Calculator", "description": "Calculate dimes to dollars with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/dimes-to-dollars-calculator", "formula_version": "us-coin-value-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "United States Mint", "title": "Coin Specifications", "url": "https://www.usmint.gov/learn/coins-and-medals/circulating-coins/coin-specifications", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-feet-and-inches", "name": "Feet And Inches Calculator", "description": "Calculate feet and inches with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/feet-and-inches-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-feet-to-inches", "name": "Feet To Inches Calculator", "description": "Calculate feet to inches with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/feet-to-inches-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-feet-to-miles", "name": "Feet To Miles Calculator", "description": "Calculate feet to miles with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/feet-to-miles-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-feet-to-yards", "name": "Feet To Yards Calculator", "description": "Calculate feet to yards with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/feet-to-yards-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-fluid-ounces-to-pounds", "name": "Fluid Ounces To Pounds Calculator", "description": "Calculate fluid ounces to pounds with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/fluid-ounces-to-pounds-calculator", "formula_version": "fluid-volume-density-to-mass-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-ft-to-m", "name": "Ft To M Calculator", "description": "Calculate ft to m with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/ft-to-m-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-g-to-lbs", "name": "G To LBS Calculator", "description": "Calculate g to lbs with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/g-to-lbs-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-g-to-oz", "name": "G To Oz Calculator", "description": "Calculate g to oz with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/g-to-oz-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-gallon", "name": "Gallon Calculator", "description": "Calculate gallon with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/gallon-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-gallons-to-cups", "name": "Gallons To Cups Calculator", "description": "Calculate gallons to cups with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/gallons-to-cups-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-gallons-to-pounds", "name": "Gallons To Pounds Calculator", "description": "Calculate gallons to pounds with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/gallons-to-pounds-calculator", "formula_version": "density-aware-volume-mass-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-gallons-to-quarts", "name": "Gallons To Quarts Calculator", "description": "Calculate gallons to quarts with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/gallons-to-quarts-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-gr-to-ml", "name": "Gr To ML Calculator", "description": "Calculate gr to ml with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/gr-to-ml-calculator", "formula_version": "density-aware-volume-mass-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-grams-in-ml", "name": "Grams In ML Calculator", "description": "Calculate grams in ml with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/grams-in-ml-calculator", "formula_version": "density-aware-volume-mass-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-grams-to-fl-oz", "name": "Grams To Fl Oz Calculator", "description": "Calculate grams to fl oz with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/grams-to-fl-oz-calculator", "formula_version": "grams-mass-and-density-volume-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-greek-gematria", "name": "Greek Gematria Calculator", "description": "Calculate greek gematria with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/greek-gematria-calculator", "formula_version": "greek-isopsephy-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Unicode Consortium", "title": "Greek and Coptic character chart", "url": "https://www.unicode.org/charts/PDF/U0370.pdf", "reviewed_at": "2026-08-14" }, { "publisher": "Cambridge University Press", "title": "The Digamma, Koppa, and Sampi as Numerals in Greek", "url": "https://www.cambridge.org/core/services/aop-cambridge-core/content/view/8FF93D1FA8CFDE6688AF9175825BF21C/S0009838800004936a.pdf/the-digamma-koppa-and-sampi-as-numerals-in-greek.pdf", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-height-in-inches", "name": "Height In Inches Calculator", "description": "Calculate height in inches with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/height-in-inches-calculator", "formula_version": "feet-inches-to-total-inches-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-hours-to-days", "name": "Hours To Days Calculator", "description": "Calculate hours to days with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/hours-to-days-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-hours-to-minutes", "name": "Hours To Minutes Calculator", "description": "Calculate hours to minutes with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/hours-to-minutes-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-hours-to-seconds", "name": "Hours To Seconds Calculator", "description": "Calculate hours to seconds with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/hours-to-seconds-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-hours-to-week", "name": "Hours To Week Calculator", "description": "Calculate hours to week with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/hours-to-week-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-hours-to-years", "name": "Hours To Years Calculator", "description": "Calculate hours to years with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/hours-to-years-calculator", "formula_version": "gregorian-calendar-year-conversion-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "U.S. Naval Observatory", "title": "Leap Years", "url": "https://aa.usno.navy.mil/faq/leap_years", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-inch", "name": "Inch Calculator", "description": "Calculate inch with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/inch-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-inch-pounds-to-foot-pounds", "name": "Inch Pounds To Foot Pounds Calculator", "description": "Calculate inch pounds to foot pounds with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/inch-pounds-to-foot-pounds-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-inch-to-meter", "name": "Inch To Meter Calculator", "description": "Calculate inch to meter with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/inch-to-meter-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-inches-to-fraction", "name": "Inches To Fraction Calculator", "description": "Calculate inches to fraction with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/inches-to-fraction-calculator", "formula_version": "fractional-inches-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-inches-to-yard", "name": "Inches To Yard Calculator", "description": "Calculate inches to yard with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/inches-to-yard-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-kelvin-to-celsius", "name": "Kelvin To Celsius Calculator", "description": "Calculate kelvin to celsius with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/kelvin-to-celsius-calculator", "formula_version": "temperature-affine-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-kelvin-to-fahrenheit", "name": "Kelvin To Fahrenheit Calculator", "description": "Calculate kelvin to fahrenheit with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/kelvin-to-fahrenheit-calculator", "formula_version": "temperature-affine-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-kg-to-lbs", "name": "KG To LBS Calculator", "description": "Calculate kg to lbs with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/kg-to-lbs-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-kg-to-ounce", "name": "KG To Ounce Calculator", "description": "Calculate kg to ounce with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/kg-to-ounce-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-kilobytes-to-megabytes", "name": "Kilobytes To Megabytes Calculator", "description": "Calculate kilobytes to megabytes with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/kilobytes-to-megabytes-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-kilometer", "name": "Kilometer Calculator", "description": "Calculate kilometer with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/kilometer-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-kilometers-to-miles", "name": "Kilometers To Miles Calculator", "description": "Calculate kilometers to miles with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/kilometers-to-miles-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-knots-to-kph", "name": "Knots To Kph Calculator", "description": "Calculate knots to kph with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/knots-to-kph-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-knots-to-mph", "name": "Knots To MPH Calculator", "description": "Calculate knots to mph with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/knots-to-mph-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-kpa", "name": "KPA Calculator", "description": "Calculate kpa with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/kpa-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-kpa-to-psi", "name": "KPA To Psi Calculator", "description": "Calculate kpa to psi with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/kpa-to-psi-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-l-to-gal", "name": "L To Gal Calculator", "description": "Calculate l to gal with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/l-to-gal-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-lbs-to-g", "name": "LBS To G Calculator", "description": "Calculate lbs to g with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/lbs-to-g-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-lbs-to-newton", "name": "LBS To Newton Calculator", "description": "Calculate lbs to newton with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/lbs-to-newton-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-liter-cc", "name": "Liter Cc Calculator", "description": "Calculate liter cc with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/liter-cc-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-m-to-ft", "name": "M To Ft Calculator", "description": "Calculate m to ft with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/m-to-ft-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-mcg-to-mg", "name": "Mcg To MG Calculator", "description": "Calculate mcg to mg with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/mcg-to-mg-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-meter", "name": "Meter Calculator", "description": "Calculate meter with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/meter-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-meter-to-mile", "name": "Meter To Mile Calculator", "description": "Calculate meter to mile with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/meter-to-mile-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-metric-to-imperial", "name": "Metric To Imperial Calculator", "description": "Calculate metric to imperial with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/metric-to-imperial-calculator", "formula_version": "metric-imperial-bidirectional-chart-v3", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-metric-to-inches", "name": "Metric To Inches Calculator", "description": "Calculate metric to inches with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/metric-to-inches-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-metric-to-standard", "name": "Metric To Standard Calculator", "description": "Calculate metric to standard with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/metric-to-standard-calculator", "formula_version": "metric-us-customary-bidirectional-chart-v3", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-mg-to-ml", "name": "MG To ML Calculator", "description": "Calculate mg to ml with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/mg-to-ml-calculator", "formula_version": "mass-concentration-bidirectional-v3", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-mil", "name": "Mil Calculator", "description": "Calculate mil with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/mil-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-mile", "name": "Mile Calculator", "description": "Calculate mile with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/mile-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-military-time", "name": "Military Time Calculator", "description": "Calculate military time with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/military-time-calculator", "formula_version": "military-time-bidirectional-v3", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Wildfire Coordinating Group", "title": "Military time", "url": "https://www.nwcg.gov/publications/pms205/nwcg-glossary-of-wildland-fire-pms-205/military-time-9", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-millimeter", "name": "Millimeter Calculator", "description": "Calculate millimeter with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/millimeter-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-million-to-billion", "name": "Million To Billion Calculator", "description": "Calculate million to billion with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/million-to-billion-calculator", "formula_version": "decimal-scale-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-minutes-to-days", "name": "Minutes To Days Calculator", "description": "Calculate minutes to days with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/minutes-to-days-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-minutes-to-years", "name": "Minutes To Years Calculator", "description": "Calculate minutes to years with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/minutes-to-years-calculator", "formula_version": "gregorian-calendar-year-conversion-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "U.S. Naval Observatory", "title": "Leap Years", "url": "https://aa.usno.navy.mil/faq/leap_years", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-ml-tbsp", "name": "ML TBSP Calculator", "description": "Calculate ml tbsp with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/ml-tbsp-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-ml-to-cc", "name": "ML To Cc Calculator", "description": "Calculate ml to cc with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/ml-to-cc-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-ml-to-cups", "name": "ML To Cups Calculator", "description": "Calculate ml to cups with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/ml-to-cups-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-ml-to-oz", "name": "ML To Oz Calculator", "description": "Calculate ml to oz with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/ml-to-oz-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-ml-tsp", "name": "ML TSP Calculator", "description": "Calculate ml tsp with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/ml-tsp-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-mm-millimeters", "name": "MM Millimeters Calculator", "description": "Calculate mm millimeters with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/mm-millimeters-calculator", "formula_version": "fractional-inches-millimeters-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-mm-to-foot", "name": "MM To Foot Calculator", "description": "Calculate mm to foot with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/mm-to-foot-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-mm-to-inches", "name": "MM To Inches Calculator", "description": "Calculate mm to inches with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/mm-to-inches-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-mm-to-m", "name": "MM To M Calculator", "description": "Calculate mm to m with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/mm-to-m-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-mmhg-to-atm", "name": "Mmhg To Atm Calculator", "description": "Calculate mmhg to atm with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/mmhg-to-atm-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-months-to-years", "name": "Months To Years Calculator", "description": "Calculate months to years with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/months-to-years-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-mpa", "name": "MPA Calculator", "description": "Calculate mpa with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/mpa-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-mpa-to-psi", "name": "MPA To Psi Calculator", "description": "Calculate mpa to psi with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/mpa-to-psi-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-mpa-to-psig", "name": "MPA To PSIG Calculator", "description": "Calculate mpa to psig with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/mpa-to-psig-calculator", "formula_version": "gauge-pressure-to-psig-v3", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-ms-to-seconds", "name": "Ms To Seconds Calculator", "description": "Calculate ms to seconds with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/ms-to-seconds-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-nickels-to-dollars", "name": "Nickels To Dollars Calculator", "description": "Calculate nickels to dollars with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/nickels-to-dollars-calculator", "formula_version": "us-coin-value-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "United States Mint", "title": "Coin Specifications", "url": "https://www.usmint.gov/learn/coins-and-medals/circulating-coins/coin-specifications", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-nm", "name": "Nm Calculator", "description": "Calculate nm with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/nm-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-nm-to-ft-lb", "name": "Nm To Ft Lb Calculator", "description": "Calculate nm to ft lb with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/nm-to-ft-lb-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-number-to-million", "name": "Number To Million Calculator", "description": "Calculate number to million with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/number-to-million-calculator", "formula_version": "decimal-scale-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-ounces-to-cups", "name": "Ounces To Cups Calculator", "description": "Calculate ounces to cups with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/ounces-to-cups-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-ounces-to-pounds", "name": "Ounces To Pounds Calculator", "description": "Calculate ounces to pounds with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/ounces-to-pounds-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-pint-to-pound", "name": "Pint To Pound Calculator", "description": "Calculate pint to pound with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/pint-to-pound-calculator", "formula_version": "density-aware-volume-mass-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-pints-to-cups", "name": "Pints To Cups Calculator", "description": "Calculate pints to cups with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/pints-to-cups-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-pints-to-gallons", "name": "Pints To Gallons Calculator", "description": "Calculate pints to gallons with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/pints-to-gallons-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-pounds-ounces", "name": "Pounds Ounces Calculator", "description": "Calculate pounds ounces with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/pounds-ounces-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-pounds-to-stone", "name": "Pounds To Stone Calculator", "description": "Calculate pounds to stone with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/pounds-to-stone-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-quarters-to-dollars", "name": "Quarters To Dollars Calculator", "description": "Calculate quarters to dollars with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/quarters-to-dollars-calculator", "formula_version": "us-coin-value-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "United States Mint", "title": "Coin Specifications", "url": "https://www.usmint.gov/learn/coins-and-medals/circulating-coins/coin-specifications", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-radians-to-degrees", "name": "Radians To Degrees Calculator", "description": "Calculate radians to degrees with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/radians-to-degrees-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-rgb-to-hex", "name": "RGB To Hex Calculator", "description": "Calculate rgb to hex with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/rgb-to-hex-calculator", "formula_version": "srgb-hex-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "World Wide Web Consortium", "title": "CSS Color Module Level 4", "url": "https://www.w3.org/TR/css-color-4/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-roman-numerals", "name": "Roman Numerals Calculator", "description": "Calculate roman numerals with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/roman-numerals-calculator", "formula_version": "roman-numerals-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Unicode Consortium", "title": "Number Forms character names list", "url": "https://www.unicode.org/charts/nameslist/n_2150.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-seconds-to-days", "name": "Seconds To Days Calculator", "description": "Calculate seconds to days with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/seconds-to-days-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-seconds-to-hours", "name": "Seconds To Hours Calculator", "description": "Calculate seconds to hours with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/seconds-to-hours-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-seconds-to-minutes", "name": "Seconds To Minutes Calculator", "description": "Calculate seconds to minutes with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/seconds-to-minutes-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-seconds-to-years", "name": "Seconds To Years Calculator", "description": "Calculate seconds to years with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/seconds-to-years-calculator", "formula_version": "gregorian-calendar-year-conversion-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "U.S. Naval Observatory", "title": "Leap Years", "url": "https://aa.usno.navy.mil/faq/leap_years", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-tbsp-to-grams", "name": "TBSP To Grams Calculator", "description": "Calculate tbsp to grams with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/tbsp-to-grams-calculator", "formula_version": "density-aware-volume-mass-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-tbsp-to-ml", "name": "TBSP To ML Calculator", "description": "Calculate tbsp to ml with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/tbsp-to-ml-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-tsp-to-grams", "name": "TSP To Grams Calculator", "description": "Calculate tsp to grams with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/tsp-to-grams-calculator", "formula_version": "density-aware-volume-mass-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-weeks-to-months", "name": "Weeks To Months Calculator", "description": "Calculate weeks to months with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/weeks-to-months-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-yard-to-meter", "name": "Yard To Meter Calculator", "description": "Calculate yard to meter with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/yard-to-meter-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-yard-to-mile", "name": "Yard To Mile Calculator", "description": "Calculate yard to mile with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/yard-to-mile-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-conversion-years-to-decades", "name": "Years To Decades Calculator", "description": "Calculate years to decades with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "conversion", "canonical_url": "https://trustycalculator.com/conversion/years-to-decades-calculator", "formula_version": "nist-linear-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-finance-annual-income", "name": "Annual Income Calculator", "description": "Calculate annual income with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/annual-income-calculator", "formula_version": "finance-annual-income-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Principles of Finance", "url": "https://openstax.org/details/books/principles-finance", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-finance-annual-salary", "name": "Annual Salary Calculator", "description": "Calculate annual salary with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/annual-salary-calculator", "formula_version": "finance-annual-salary-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Principles of Finance", "url": "https://openstax.org/details/books/principles-finance", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-finance-apy", "name": "APY Calculator", "description": "Calculate apy with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/apy-calculator", "formula_version": "finance-apy-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Stated versus Effective Rates", "url": "https://openstax.org/books/principles-finance/pages/8-4-stated-versus-effective-rates", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-finance-cagr", "name": "CAGR Calculator", "description": "Calculate cagr with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/cagr-calculator", "formula_version": "finance-cagr-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "U.S. Securities and Exchange Commission, Investor.gov", "title": "Compound Annual Growth Rate (CAGR)", "url": "https://www.investor.gov/introduction-investing/investing-basics/glossary/compound-annual-growth-rate-cagr", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-finance-call-put-option", "name": "Call and Put Options Profit Calculator", "description": "Calculate call put option with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/call-put-option-calculator", "formula_version": "long-option-expiration-profit-v3", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Options Industry Council", "title": "Options Strategies: Long Call and Long Put", "url": "https://www.optionseducation.org/strategies/all-strategies", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-finance-contribution-margin", "name": "Contribution Margin Calculator", "description": "Calculate contribution margin with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/contribution-margin-calculator", "formula_version": "finance-contribution-margin-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Contribution Margin and Contribution Margin Ratio", "url": "https://openstax.org/books/principles-managerial-accounting/pages/3-1-explain-contribution-margin-and-calculate-contribution-margin-per-unit-contribution-margin-ratio-and-total-contribution-margin", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-finance-cpc-cpm", "name": "CPC CPM Calculator", "description": "Calculate cpc cpm with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/cpc-cpm-calculator", "formula_version": "finance-cpc-cpm-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Google Ads Help", "title": "Average cost per click (Avg. CPC): Definition", "url": "https://support.google.com/google-ads/answer/14074?hl=en", "reviewed_at": "2026-08-14" }, { "publisher": "Google Ads Help", "title": "Cost-per-thousand impressions (CPM): Definition", "url": "https://support.google.com/google-ads/answer/6310?hl=en", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-finance-money-counter", "name": "Money Counter Calculator", "description": "Calculate money counter with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/money-counter-calculator", "formula_version": "finance-money-counter-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "U.S. Currency Education Program", "title": "The Seven Denominations", "url": "https://www.uscurrency.gov/denominations", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-finance-monthly-income", "name": "Monthly Income Calculator", "description": "Calculate monthly income with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/monthly-income-calculator", "formula_version": "finance-monthly-income-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Principles of Finance", "url": "https://openstax.org/details/books/principles-finance", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-finance-new-jersey-sales-tax", "name": "New Jersey Sales Tax Calculator", "description": "Calculate new jersey sales tax with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/new-jersey-sales-tax-calculator", "formula_version": "finance-new-jersey-sales-tax-v1", "risk": "maintained", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "New Jersey Division of Taxation", "title": "Sales and Use Tax", "url": "https://www.nj.gov/treasury/taxation/businesses/salestax/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-finance-ohio-sales-tax", "name": "Ohio Sales Tax Calculator", "description": "Calculate ohio sales tax with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/ohio-sales-tax-calculator", "formula_version": "finance-ohio-sales-tax-v1", "risk": "maintained", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Ohio Laws and Administrative Rules", "title": "Ohio Revised Code Section 5739.02", "url": "https://codes.ohio.gov/ohio-revised-code/section-5739.02/9-30-2025", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-finance-roth-ira", "name": "Roth Ira Calculator", "description": "Calculate roth ira with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/roth-ira-calculator", "formula_version": "finance-roth-ira-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "U.S. Securities and Exchange Commission, Investor.gov", "title": "Compound Interest Calculator", "url": "https://www.investor.gov/financial-tools-calculators/calculators/compound-interest-calculator", "reviewed_at": "2026-08-14" }, { "publisher": "Internal Revenue Service", "title": "IRA contribution limits", "url": "https://www.irs.gov/retirement-plans/plan-participant-employee/retirement-topics-ira-contribution-limits", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-finance-salary-with-overtime", "name": "Salary With Overtime Calculator", "description": "Calculate salary with overtime with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/salary-with-overtime-calculator", "formula_version": "finance-salary-with-overtime-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "U.S. Department of Labor, Wage and Hour Division", "title": "Regular Rate under the Fair Labor Standards Act", "url": "https://www.dol.gov/sites/dolgov/files/WHD/fact-sheets/fs-2019-regular-rate.pdf", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-finance-wacc", "name": "WACC Calculator", "description": "Calculate wacc with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/wacc-calculator", "formula_version": "finance-wacc-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Calculating the Weighted Average Cost of Capital", "url": "https://openstax.org/books/principles-of-finance-2e/pages/17-3-calculating-the-weighted-average-cost-of-capital", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-food-butter", "name": "Butter Calculator", "description": "Calculate butter with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "food", "canonical_url": "https://trustycalculator.com/food/butter-calculator", "formula_version": "food-butter-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "King Arthur Baking Company", "title": "Ingredient Weight Chart", "url": "https://www.kingarthurbaking.com/learn/ingredient-weight-chart", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-food-cups-to-pounds", "name": "Cups To Pounds Calculator", "description": "Calculate cups to pounds with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "food", "canonical_url": "https://trustycalculator.com/food/cups-to-pounds-calculator", "formula_version": "food-cups-to-pounds-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-food-eggs", "name": "Hard-Boiled Egg Time Calculator", "description": "Calculate eggs with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "food", "canonical_url": "https://trustycalculator.com/food/eggs-calculator", "formula_version": "covered-hot-water-egg-time-v1", "risk": "maintained", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "American Egg Board", "title": "How to Make Hard-Boiled Eggs", "url": "https://www.incredibleegg.org/recipe/how-to-make-hard-boiled-eggs/", "reviewed_at": "2026-08-14" }, { "publisher": "U.S. Food and Drug Administration", "title": "What You Need to Know About Egg Safety", "url": "https://www.fda.gov/food/buy-store-serve-safe-food/what-you-need-know-about-egg-safety", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-food-garlic", "name": "Garlic Calculator", "description": "Calculate garlic with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "food", "canonical_url": "https://trustycalculator.com/food/garlic-calculator", "formula_version": "food-garlic-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-food-grams-to-cups", "name": "Grams To Cups Calculator", "description": "Calculate grams to cups with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "food", "canonical_url": "https://trustycalculator.com/food/grams-to-cups-calculator", "formula_version": "food-grams-to-cups-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-food-grams-to-tbsp", "name": "Grams To TBSP Calculator", "description": "Calculate grams to tbsp with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "food", "canonical_url": "https://trustycalculator.com/food/grams-to-tbsp-calculator", "formula_version": "food-grams-to-tbsp-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-food-grams-to-tsp", "name": "Grams To TSP Calculator", "description": "Calculate grams to tsp with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "food", "canonical_url": "https://trustycalculator.com/food/grams-to-tsp-calculator", "formula_version": "food-grams-to-tsp-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "King Arthur Baking Company", "title": "Ingredient Weight Chart", "url": "https://www.kingarthurbaking.com/learn/ingredient-weight-chart", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-food-ml-to-grams", "name": "ML To Grams Calculator", "description": "Calculate ml to grams with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "food", "canonical_url": "https://trustycalculator.com/food/ml-to-grams-calculator", "formula_version": "food-milliliters-grams-bidirectional-v3", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-food-pizza-comparison", "name": "Pizza Comparison Calculator", "description": "Calculate pizza comparison with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "food", "canonical_url": "https://trustycalculator.com/food/pizza-comparison-calculator", "formula_version": "food-pizza-comparison-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-food-pizza-party", "name": "Pizza Party Calculator", "description": "Calculate pizza party with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "food", "canonical_url": "https://trustycalculator.com/food/pizza-party-calculator", "formula_version": "food-pizza-party-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-food-pounds-to-cups", "name": "Pounds To Cups Calculator", "description": "Calculate pounds to cups with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "food", "canonical_url": "https://trustycalculator.com/food/pounds-to-cups-calculator", "formula_version": "food-pounds-to-cups-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "King Arthur Baking Company", "title": "Ingredient Weight Chart", "url": "https://www.kingarthurbaking.com/learn/ingredient-weight-chart", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-food-rice-water-ratio", "name": "Rice Water Ratio Calculator", "description": "Calculate rice water ratio with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "food", "canonical_url": "https://trustycalculator.com/food/rice-water-ratio-calculator", "formula_version": "food-rice-water-ratio-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44 — Units of Measurement", "url": "https://www.nist.gov/pml/owm/publications/nist-handbooks/handbook-44-current-edition", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-food-turkey-defrost", "name": "Turkey Defrost Calculator", "description": "Calculate turkey defrost with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "food", "canonical_url": "https://trustycalculator.com/food/turkey-defrost-calculator", "formula_version": "food-turkey-defrost-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "U.S. Department of Agriculture Food Safety and Inspection Service", "title": "Turkey Basics: Safe Thawing", "url": "https://www.fsis.usda.gov/food-safety/safe-food-handling-and-preparation/poultry/turkey-basics-safe-thawing", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-acr", "name": "ACR Calculator", "description": "Calculate acr with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/acr-calculator", "formula_version": "health-acr-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Diabetes and Digestive and Kidney Diseases", "title": "Kidney disease tests and diagnosis", "url": "https://www.niddk.nih.gov/health-information/kidney-disease/chronic-kidney-disease-ckd/tests-diagnosis", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-aft", "name": "AFT Calculator", "description": "Calculate aft with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/aft-calculator", "formula_version": "health-aft-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "United States Army", "title": "Army Fitness Test", "url": "https://www.army.mil/aft/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-ahi", "name": "AHI Calculator", "description": "Calculate ahi with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/ahi-calculator", "formula_version": "health-ahi-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "American Academy of Sleep Medicine", "title": "Quality Measures for the Care of Adult Patients with Obstructive Sleep Apnea", "url": "https://www.aasm.org/resources/qualitymeasures/qualitymeasuresforthecareofadultpatientswithobstructivesleepapnea.pdf", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-aleve-dosage", "name": "Aleve Dosage Calculator", "description": "Calculate aleve dosage with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/aleve-dosage-calculator", "formula_version": "health-aleve-dosage-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "U.S. National Library of Medicine DailyMed", "title": "Naproxen Sodium Tablets 220 mg Drug Facts", "url": "https://dailymed.nlm.nih.gov/dailymed/fda/fdaDrugXsl.cfm?setid=c5146d73-2f34-4dfe-ac29-97071279dc4d", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-army-aft-standards", "name": "Army AFT Entered-Points Summary Calculator", "description": "Calculate army aft entered-points summary with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/army-aft-standards-calculator", "formula_version": "health-army-aft-standards-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "United States Army", "title": "Army Fitness Test", "url": "https://www.army.mil/aft/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-army-body-fat", "name": "Army Body Fat Calculator", "description": "Calculate army body fat with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/army-body-fat-calculator", "formula_version": "health-army-body-fat-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "United States Army", "title": "Army Directive 2026-13: Army Body Composition Program and Standards", "url": "https://home.army.mil/carson/8117/8345/8209/ARMY_DIR_2026-13_ABCP.pdf", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-beighton-score", "name": "Beighton Score Calculator", "description": "Calculate beighton score with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/beighton-score-calculator", "formula_version": "beighton-nine-point-labeled-v2", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Center for Biotechnology Information", "title": "Hypermobile Ehlers-Danlos Syndrome — GeneReviews", "url": "https://www.ncbi.nlm.nih.gov/books/NBK1279/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-benadryl-dosage-for-dogs", "name": "Veterinarian-Entered Diphenhydramine Dose Calculator for Dogs", "description": "Calculate veterinarian-entered diphenhydramine dose calculator for dogs with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/benadryl-dosage-for-dogs-calculator", "formula_version": "veterinarian-entered-diphenhydramine-rate-v2", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Merck Veterinary Manual", "title": "Antihistamines for Integumentary Disease in Animals", "url": "https://www.merckvetmanual.com/pharmacology/systemic-pharmacotherapeutics-of-the-integumentary-system/antihistamines-for-integumentary-disease-in-animals", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-blood-volume", "name": "Blood Volume Calculator", "description": "Calculate blood volume with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/blood-volume-calculator", "formula_version": "health-blood-volume-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Center for Biotechnology Information", "title": "Physiology, Blood Volume", "url": "https://www.ncbi.nlm.nih.gov/books/NBK526077/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-body-shape", "name": "Body Shape Calculator", "description": "Calculate body shape with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/body-shape-calculator", "formula_version": "body-proportion-classifier-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Centers for Disease Control and Prevention", "title": "NHANES Anthropometry Procedures Manual", "url": "https://wwwn.cdc.gov/nchs/data/nhanes/public/2021/manuals/2021-Anthropometry-Procedures-Manual-508.pdf", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-bsa", "name": "BSA Calculator", "description": "Calculate bsa with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/bsa-calculator", "formula_version": "health-bsa-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Metabolism", "title": "Body surface area in normal-weight, overweight, and obese adults", "url": "https://pubmed.ncbi.nlm.nih.gov/16546483/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-bun-creatinine-ratio", "name": "Bun Creatinine Ratio Calculator", "description": "Calculate bun creatinine ratio with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/bun-creatinine-ratio-calculator", "formula_version": "health-bun-creatinine-ratio-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Diabetes and Digestive and Kidney Diseases", "title": "Kidney disease tests and diagnosis", "url": "https://www.niddk.nih.gov/health-information/kidney-disease/chronic-kidney-disease-ckd/tests-diagnosis", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-cat-age", "name": "Cat Age Calculator", "description": "Calculate cat age with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/cat-age-calculator", "formula_version": "health-cat-age-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "American Veterinary Medical Association", "title": "Pets Age Faster Than People", "url": "https://ebusiness.avma.org/files/productdownloads/PetsAgeFasterPoster.pdf", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-cat-chocolate-toxicity", "name": "Cat Chocolate Toxicity Calculator", "description": "Calculate cat chocolate toxicity with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/cat-chocolate-toxicity-calculator", "formula_version": "health-cat-chocolate-toxicity-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "ASPCA Animal Poison Control Center", "title": "People Foods to Avoid Feeding Your Pets", "url": "https://www.aspca.org/pet-care/aspca-poison-control/people-foods-avoid-feeding-your-pets", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-cat-pregnancy", "name": "Cat Pregnancy Calculator", "description": "Calculate cat pregnancy with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/cat-pregnancy-calculator", "formula_version": "feline-mating-gestation-date-v2", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Merck Veterinary Manual", "title": "Pregnancy Determination in Bitches and Queens", "url": "https://www.merckvetmanual.com/management-and-nutrition/management-of-reproduction-dogs-and-cats/pregnancy-determination-in-bitches-and-queens", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-centor", "name": "Centor Calculator", "description": "Calculate centor with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/centor-calculator", "formula_version": "modified-centor-labeled-v2", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Canadian Medical Association Journal", "title": "A clinical score to reduce unnecessary antibiotic use in patients with sore throat", "url": "https://pubmed.ncbi.nlm.nih.gov/9921959/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-cha2ds2-vasc", "name": "Cha2ds2 VASC Calculator", "description": "Calculate cha2ds2 vasc with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/cha2ds2-vasc-calculator", "formula_version": "cha2ds2-vasc-labeled-v2", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "American College of Cardiology and American Heart Association", "title": "2023 Guideline for the Diagnosis and Management of Atrial Fibrillation", "url": "https://www.ahajournals.org/doi/10.1161/CIR.0000000000001193", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-corrected-calcium", "name": "Corrected Calcium Calculator", "description": "Calculate corrected calcium with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/corrected-calcium-calculator", "formula_version": "health-corrected-calcium-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Merck Manual Professional Edition", "title": "Hypocalcemia", "url": "https://www.merckmanuals.com/professional/endocrine-and-metabolic-disorders/electrolyte-disorders/hypocalcemia", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-crcl", "name": "CRCL Calculator", "description": "Calculate crcl with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/crcl-calculator", "formula_version": "cockcroft-gault-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Nephron", "title": "Prediction of creatinine clearance from serum creatinine", "url": "https://pubmed.ncbi.nlm.nih.gov/1244564/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-dihybrid-cross-punnett-square", "name": "Dihybrid Cross Punnett Square Calculator", "description": "Calculate dihybrid cross punnett square with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/dihybrid-cross-punnett-square-calculator", "formula_version": "health-dihybrid-cross-punnett-square-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Biology 2e — Laws of Inheritance", "url": "https://openstax.org/books/biology-2e/pages/12-3-laws-of-inheritance", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-dog-age", "name": "Dog Age Calculator", "description": "Calculate dog age with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/dog-age-calculator", "formula_version": "health-dog-age-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "American Veterinary Medical Association", "title": "Pets Age Faster Than People", "url": "https://ebusiness.avma.org/files/productdownloads/PetsAgeFasterPoster.pdf", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-dog-heat-cycle", "name": "Dog Heat Cycle Calculator", "description": "Calculate dog heat cycle with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/dog-heat-cycle-calculator", "formula_version": "canine-estrous-broad-planning-window-v2", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Merck Veterinary Manual", "title": "Pregnancy Determination in Bitches and Queens", "url": "https://www.merckvetmanual.com/management-and-nutrition/management-of-reproduction-dogs-and-cats/pregnancy-determination-in-bitches-and-queens", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-dog-life-expectancy", "name": "Dog Remaining-Lifespan Planning Calculator", "description": "Calculate dog remaining-lifespan planning with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/dog-life-expectancy-calculator", "formula_version": "health-dog-life-expectancy-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "American Veterinary Medical Association", "title": "Pets Age Faster Than People", "url": "https://ebusiness.avma.org/files/productdownloads/PetsAgeFasterPoster.pdf", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-dog-pregnancy", "name": "Dog Pregnancy Calculator", "description": "Calculate dog pregnancy with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/dog-pregnancy-calculator", "formula_version": "canine-ovulation-gestation-date-v2", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Merck Veterinary Manual", "title": "Pregnancy Determination in Bitches and Queens", "url": "https://www.merckvetmanual.com/management-and-nutrition/management-of-reproduction-dogs-and-cats/pregnancy-determination-in-bitches-and-queens", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-dog-raisin-toxicity", "name": "Dog Raisin Toxicity Calculator", "description": "Calculate dog raisin toxicity with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/dog-raisin-toxicity-calculator", "formula_version": "health-dog-raisin-toxicity-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "ASPCA Animal Poison Control Center", "title": "People Foods to Avoid Feeding Your Pets", "url": "https://www.aspca.org/pet-care/aspca-poison-control/people-foods-avoid-feeding-your-pets", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-ett-size", "name": "ETT Size Calculator", "description": "Calculate ett size with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/ett-size-calculator", "formula_version": "health-ett-size-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Korean Journal of Anesthesiology", "title": "Choice of the correct size of endotracheal tube in pediatric patients", "url": "https://pubmed.ncbi.nlm.nih.gov/36317427/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-face-shape", "name": "Face Shape Calculator", "description": "Calculate face shape with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/face-shape-calculator", "formula_version": "face-proportion-classifier-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Centers for Disease Control and Prevention", "title": "NHANES Anthropometry Procedures Manual", "url": "https://wwwn.cdc.gov/nchs/data/nhanes/public/2021/manuals/2021-Anthropometry-Procedures-Manual-508.pdf", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-ffmi", "name": "FFMI Calculator", "description": "Calculate ffmi with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/ffmi-calculator", "formula_version": "health-ffmi-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Clinical Journal of Sport Medicine", "title": "Fat-free mass index in users and nonusers of anabolic-androgenic steroids", "url": "https://pubmed.ncbi.nlm.nih.gov/7496846/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-fiber", "name": "Fiber Calculator", "description": "Calculate fiber with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/fiber-calculator", "formula_version": "health-fiber-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "U.S. Departments of Agriculture and Health and Human Services", "title": "Dietary Guidelines for Americans, 2020–2025", "url": "https://www.dietaryguidelines.gov/sites/default/files/2020-12/Dietary_Guidelines_for_Americans_2020-2025.pdf", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-hamster-age", "name": "Hamster Age Calculator", "description": "Calculate hamster age with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/hamster-age-calculator", "formula_version": "health-hamster-age-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Royal Society for the Prevention of Cruelty to Animals", "title": "Keeping Hamsters as Pets", "url": "https://www.rspca.org.uk/adviceandwelfare/pets/rodents/hamsters", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-hcg-levels", "name": "HCG Levels Calculator", "description": "Calculate hcg levels with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/hcg-levels-calculator", "formula_version": "serial-hcg-direction-and-characteristic-time-v2", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "American College of Obstetricians and Gynecologists", "title": "Ectopic Pregnancy", "url": "https://www.acog.org/womens-health/faqs/ectopic-pregnancy", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-heart-score", "name": "Heart Score Calculator", "description": "Calculate heart score with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/heart-score-calculator", "formula_version": "heart-score-labeled-v2", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Netherlands Heart Journal", "title": "Chest pain in the emergency room: value of the HEART score", "url": "https://pubmed.ncbi.nlm.nih.gov/18672337/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-hemoglobin-a1c", "name": "Hemoglobin A1c Calculator", "description": "Calculate hemoglobin a1c with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/hemoglobin-a1c-calculator", "formula_version": "health-hemoglobin-a1c-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Centers for Disease Control and Prevention", "title": "A1C Test for Diabetes and Prediabetes", "url": "https://www.cdc.gov/diabetes/diabetes-testing/prediabetes-a1c-test.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-hypoallergenic-cat-breeds", "name": "Hypoallergenic Cat Breeds Calculator", "description": "Calculate hypoallergenic cat breeds with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/hypoallergenic-cat-breeds-calculator", "formula_version": "cat-allergen-guidance-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "American Academy of Allergy, Asthma & Immunology", "title": "Pet Allergy", "url": "https://www.aaaai.org/tools-for-the-public/conditions-library/allergies/pet-allergy", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-ideal-weight", "name": "Ideal Weight Calculator", "description": "Calculate ideal weight with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/ideal-weight-calculator", "formula_version": "health-ideal-weight-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Center for Biotechnology Information", "title": "Ideal Body Weight", "url": "https://www.ncbi.nlm.nih.gov/books/NBK535456/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-ivf-due-date", "name": "Ivf Due Date Calculator", "description": "Calculate ivf due date with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/ivf-due-date-calculator", "formula_version": "ivf-transfer-due-date-v2", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "American College of Obstetricians and Gynecologists", "title": "Methods for Estimating the Due Date", "url": "https://www.acog.org/clinical/clinical-guidance/committee-opinion/articles/2017/05/methods-for-estimating-the-due-date", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-navy-prt", "name": "Navy PRT Entered-Points Summary Calculator", "description": "Calculate navy prt entered-points summary with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/navy-prt-calculator", "formula_version": "health-navy-prt-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "MyNavy HR", "title": "Physical Readiness Program Guides", "url": "https://www.mynavyhr.navy.mil/Support-Services/Culture-Resilience/Physical-Readiness/Guides/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-newborn-hyperbilirubinemia-assessment", "name": "Newborn Hyperbilirubinemia Assessment Calculator", "description": "Calculate newborn hyperbilirubinemia assessment with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/newborn-hyperbilirubinemia-assessment-calculator", "formula_version": "phototherapy-threshold-minus-bilirubin-v2", "risk": "high", "reviewed_at": "2026-08-25", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "American Academy of Pediatrics", "title": "2022 Clinical Practice Guideline: Management of Hyperbilirubinemia", "url": "https://publications.aap.org/pediatrics/article/150/3/e2022058859/188726/", "reviewed_at": "2026-08-25" } ] }, { "calculator_id": "op-health-nih-stroke", "name": "Nih Stroke Calculator", "description": "Calculate nih stroke with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/nih-stroke-calculator", "formula_version": "nihss-15-item-labeled-v3", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Neurological Disorders and Stroke", "title": "NIH Stroke Scale", "url": "https://www.ninds.nih.gov/sites/default/files/migrate-documents/nih_stroke_scale_booklet_508c.pdf", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-nuchal-translucency", "name": "Nuchal Translucency Calculator", "description": "Calculate nuchal translucency with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/nuchal-translucency-calculator", "formula_version": "health-nuchal-translucency-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "American College of Obstetricians and Gynecologists", "title": "Screening for Fetal Chromosomal Abnormalities", "url": "https://www.acog.org/clinical/clinical-guidance/practice-advisory/articles/2026/01/screening-for-fetal-chromosomal-abnormalities", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-parkland-formula", "name": "Parkland Formula Calculator", "description": "Calculate parkland formula with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/parkland-formula-calculator", "formula_version": "health-parkland-formula-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "American Burn Association", "title": "Clinical Practice Guidelines on Burn Shock Resuscitation", "url": "https://pubmed.ncbi.nlm.nih.gov/38051821/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-transferrin", "name": "Transferrin Calculator", "description": "Calculate transferrin with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/transferrin-calculator", "formula_version": "health-transferrin-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "U.S. National Library of Medicine", "title": "Iron Tests", "url": "https://medlineplus.gov/lab-tests/iron-tests/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-waist-hip-ratio", "name": "Waist Hip Ratio Calculator", "description": "Calculate waist hip ratio with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/waist-hip-ratio-calculator", "formula_version": "health-waist-hip-ratio-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "World Health Organization", "title": "Waist Circumference and Waist-Hip Ratio", "url": "https://iris.who.int/handle/10665/44583", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-health-water-intake", "name": "Water Intake Calculator", "description": "Calculate water intake with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "health", "canonical_url": "https://trustycalculator.com/health/water-intake-calculator", "formula_version": "health-water-intake-v1", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Academies of Sciences, Engineering, and Medicine", "title": "Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate", "url": "https://nap.nationalacademies.org/catalog/10925/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-lifestyle-5k-pace", "name": "5k Pace Calculator", "description": "Calculate 5k pace with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "lifestyle", "canonical_url": "https://trustycalculator.com/lifestyle/5k-pace-calculator", "formula_version": "lifestyle-5k-pace-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-lifestyle-bench-press", "name": "Bench Press Calculator", "description": "Calculate bench press with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "lifestyle", "canonical_url": "https://trustycalculator.com/lifestyle/bench-press-calculator", "formula_version": "lifestyle-bench-press-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Library of Medicine, PubMed Central", "title": "Comparison of repetition-to-failure 1RM prediction equations", "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC11435939/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-lifestyle-bike-size", "name": "Bike Size Calculator", "description": "Calculate bike size with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "lifestyle", "canonical_url": "https://trustycalculator.com/lifestyle/bike-size-calculator", "formula_version": "lifestyle-bike-size-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Trek Bicycle", "title": "Road bike sizing guide", "url": "https://www.trekbikes.com/ca/en_CA/road_buyers_guide/bike_size/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-lifestyle-eu-us-shoe-size", "name": "Eu Us Shoe Size Calculator", "description": "Calculate eu us shoe size with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "lifestyle", "canonical_url": "https://trustycalculator.com/lifestyle/eu-us-shoe-size-calculator", "formula_version": "lifestyle-eu-us-shoe-size-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "International Organization for Standardization", "title": "ISO 19407:2023 — Footwear sizing conversion", "url": "https://www.iso.org/standard/83106.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-lifestyle-half-marathon-pace", "name": "Half Marathon Pace Calculator", "description": "Calculate half marathon pace with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "lifestyle", "canonical_url": "https://trustycalculator.com/lifestyle/half-marathon-pace-calculator", "formula_version": "lifestyle-half-marathon-pace-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-lifestyle-marathon-pace", "name": "Marathon Pace Calculator", "description": "Calculate marathon pace with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "lifestyle", "canonical_url": "https://trustycalculator.com/lifestyle/marathon-pace-calculator", "formula_version": "lifestyle-marathon-pace-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-lifestyle-vo2-max", "name": "VO2 Max Calculator", "description": "Calculate vo2 max with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "lifestyle", "canonical_url": "https://trustycalculator.com/lifestyle/vo2-max-calculator", "formula_version": "lifestyle-vo2-max-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "The Cooper Institute", "title": "50 Years of the Cooper 12-Minute Run", "url": "https://www.cooperinstitute.org/blog/50-years-of-the-cooper-12-minute-run", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-lifestyle-whip-baseball", "name": "Whip Baseball Calculator", "description": "Calculate whip baseball with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "lifestyle", "canonical_url": "https://trustycalculator.com/lifestyle/whip-baseball-calculator", "formula_version": "lifestyle-whip-baseball-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-5-number-summary", "name": "5 Number Summary Calculator", "description": "Calculate 5 number summary with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/5-number-summary-calculator", "formula_version": "descriptive-statistics-summary-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-arc-length", "name": "Arc Length Calculator", "description": "Calculate arc length with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/arc-length-calculator", "formula_version": "math-arc-length-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-area", "name": "Area Calculator", "description": "Calculate area with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/area-calculator", "formula_version": "math-area-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-area-of-sphere", "name": "Area Of Sphere Calculator", "description": "Calculate area of sphere with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/area-of-sphere-calculator", "formula_version": "math-area-of-sphere-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-arithmetic-sequence", "name": "Arithmetic Sequence Calculator", "description": "Calculate arithmetic sequence with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/arithmetic-sequence-calculator", "formula_version": "math-arithmetic-sequence-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-cartesian-to-polar", "name": "Cartesian To Polar Calculator", "description": "Calculate cartesian to polar with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/cartesian-to-polar-calculator", "formula_version": "math-cartesian-to-polar-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-change-of-base", "name": "Change Of Base Calculator", "description": "Calculate change of base with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/change-of-base-calculator", "formula_version": "math-change-of-base-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-circle-perimeter", "name": "Circle Perimeter Calculator", "description": "Calculate circle perimeter with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/circle-perimeter-calculator", "formula_version": "math-circle-perimeter-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-circumference", "name": "Circumference Calculator", "description": "Calculate circumference with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/circumference-calculator", "formula_version": "math-circumference-bidirectional-v2", "risk": "standard", "reviewed_at": "2026-08-22", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-22" } ] }, { "calculator_id": "op-math-common-multiple", "name": "Common Multiple Calculator", "description": "Calculate common multiple with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/common-multiple-calculator", "formula_version": "math-common-multiple-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-cosh", "name": "Cosh Calculator", "description": "Calculate cosh with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/cosh-calculator", "formula_version": "math-cosh-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-cross-product", "name": "Cross Product Calculator", "description": "Calculate cross product with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/cross-product-calculator", "formula_version": "math-cross-product-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-distance", "name": "Distance Calculator", "description": "Calculate distance with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/distance-calculator", "formula_version": "math-distance-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-dnd-dice-roller", "name": "DND Dice Roller Calculator", "description": "Calculate dnd dice roller with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/dnd-dice-roller-calculator", "formula_version": "deterministic-dice-lcg-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Communications of the ACM", "title": "Random Number Generators: Good Ones Are Hard to Find", "url": "https://doi.org/10.1145/63039.63042", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-equilateral-triangle", "name": "Equilateral Triangle Calculator", "description": "Calculate equilateral triangle with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/equilateral-triangle-calculator", "formula_version": "math-equilateral-triangle-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-expanded-form", "name": "Expanded Form Calculator", "description": "Calculate expanded form with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/expanded-form-calculator", "formula_version": "math-expanded-form-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-exponential-function", "name": "Exponential Function Calculator", "description": "Calculate exponential function with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/exponential-function-calculator", "formula_version": "math-exponential-function-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-exponential-growth", "name": "Exponential Growth Calculator", "description": "Calculate exponential growth with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/exponential-growth-calculator", "formula_version": "math-exponential-growth-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-geometric-sequence", "name": "Geometric Sequence Calculator", "description": "Calculate geometric sequence with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/geometric-sequence-calculator", "formula_version": "math-geometric-sequence-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-greater-less", "name": "Greater Less Calculator", "description": "Calculate greater less with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/greater-less-calculator", "formula_version": "math-greater-less-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-hexagon", "name": "Hexagon Calculator", "description": "Calculate hexagon with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/hexagon-calculator", "formula_version": "math-hexagon-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-iqr", "name": "IQR Calculator", "description": "Calculate iqr with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/iqr-calculator", "formula_version": "descriptive-statistics-iqr-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-isosceles-trapezoid-area", "name": "Isosceles Trapezoid Area Calculator", "description": "Calculate isosceles trapezoid area with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/isosceles-trapezoid-area-calculator", "formula_version": "math-isosceles-trapezoid-area-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-least-common-denominator", "name": "Least Common Denominator Calculator", "description": "Calculate least common denominator with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/least-common-denominator-calculator", "formula_version": "math-least-common-denominator-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-length-width-area-rectangle", "name": "Length Width Area Rectangle Calculator", "description": "Calculate length width area rectangle with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/length-width-area-rectangle-calculator", "formula_version": "math-length-width-area-rectangle-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-mixed-number", "name": "Mixed Number Calculator", "description": "Calculate mixed number with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/mixed-number-calculator", "formula_version": "math-mixed-number-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-modulo", "name": "Modulo Calculator", "description": "Calculate modulo with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/modulo-calculator", "formula_version": "math-modulo-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-natural-log", "name": "Natural Log Calculator", "description": "Calculate natural log with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/natural-log-calculator", "formula_version": "math-natural-log-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-percentage-decrease", "name": "Percentage Decrease Calculator", "description": "Calculate percentage decrease with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/percentage-decrease-calculator", "formula_version": "math-percentage-decrease-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-perimeter", "name": "Perimeter Calculator", "description": "Calculate perimeter with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/perimeter-calculator", "formula_version": "math-perimeter-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-perp-line", "name": "Perp Line Calculator", "description": "Calculate perp line with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/perp-line-calculator", "formula_version": "math-perp-line-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-point-slope-form", "name": "Point Slope Form Calculator", "description": "Calculate point slope form with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/point-slope-form-calculator", "formula_version": "math-point-slope-form-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-pythagorean-triples", "name": "Pythagorean Triples Calculator", "description": "Calculate pythagorean triples with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/pythagorean-triples-calculator", "formula_version": "math-pythagorean-triples-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-range", "name": "Range Calculator", "description": "Calculate range with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/range-calculator", "formula_version": "descriptive-statistics-range-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-rectangular-prism-volume", "name": "Rectangular Prism Volume Calculator", "description": "Calculate rectangular prism volume with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/rectangular-prism-volume-calculator", "formula_version": "math-rectangular-prism-volume-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-right-triangle-area", "name": "Right Triangle Area Calculator", "description": "Calculate right triangle area with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/right-triangle-area-calculator", "formula_version": "math-right-triangle-area-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-rise-over-run", "name": "Rise Over Run Calculator", "description": "Calculate rise over run with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/rise-over-run-calculator", "formula_version": "math-rise-over-run-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-rounding", "name": "Rounding Calculator", "description": "Calculate rounding with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/rounding-calculator", "formula_version": "math-rounding-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-scalene-triangle-area", "name": "Scalene Triangle Area Calculator", "description": "Calculate scalene triangle area with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/scalene-triangle-area-calculator", "formula_version": "math-scalene-triangle-area-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-sec", "name": "Sec Calculator", "description": "Calculate sec with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/sec-calculator", "formula_version": "math-sec-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-sector-area", "name": "Sector Area Calculator", "description": "Calculate sector area with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/sector-area-calculator", "formula_version": "math-sector-area-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-slope", "name": "Slope Calculator", "description": "Calculate slope with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/slope-calculator", "formula_version": "math-slope-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-slope-intercept-form", "name": "Slope Intercept Form Calculator", "description": "Calculate slope intercept form with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/slope-intercept-form-calculator", "formula_version": "math-slope-intercept-form-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-special-right-triangles", "name": "Special Right Triangles Calculator", "description": "Calculate special right triangles with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/special-right-triangles-calculator", "formula_version": "math-special-right-triangles-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-spherical-coordinates", "name": "Spherical Coordinates Calculator", "description": "Calculate spherical coordinates with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/spherical-coordinates-calculator", "formula_version": "math-spherical-coordinates-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-ssa-triangle", "name": "SSA Triangle Calculator", "description": "Calculate ssa triangle with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/ssa-triangle-calculator", "formula_version": "math-ssa-triangle-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-standard-form", "name": "Standard Form Calculator", "description": "Calculate standard form with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/standard-form-calculator", "formula_version": "math-standard-form-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-sum-of-series", "name": "Sum Of Series Calculator", "description": "Calculate sum of series with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/sum-of-series-calculator", "formula_version": "math-sum-of-series-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-supplementary-angles", "name": "Supplementary Angles Calculator", "description": "Calculate supplementary angles with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/supplementary-angles-calculator", "formula_version": "math-supplementary-angles-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-surface-area", "name": "Surface Area Calculator", "description": "Calculate surface area with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/surface-area-calculator", "formula_version": "math-surface-area-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-systems-of-equations", "name": "Systems Of Equations Calculator", "description": "Calculate systems of equations with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/systems-of-equations-calculator", "formula_version": "math-systems-of-equations-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-trapezoid", "name": "Trapezoid Calculator", "description": "Calculate trapezoid with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/trapezoid-calculator", "formula_version": "math-trapezoid-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-triangle-30-60-90", "name": "Triangle 30 60 90 Calculator", "description": "Calculate triangle 30 60 90 with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/triangle-30-60-90-calculator", "formula_version": "math-triangle-30-60-90-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-triangle-45-45-90", "name": "Triangle 45 45 90 Calculator", "description": "Calculate triangle 45 45 90 with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/triangle-45-45-90-calculator", "formula_version": "math-triangle-45-45-90-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-unit-circle", "name": "Unit Circle Calculator", "description": "Calculate unit circle with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/unit-circle-calculator", "formula_version": "math-unit-circle-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-unit-rate", "name": "Unit Rate Calculator", "description": "Calculate unit rate with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/unit-rate-calculator", "formula_version": "math-unit-rate-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-volume", "name": "Volume Calculator", "description": "Calculate volume with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/volume-calculator", "formula_version": "math-volume-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-math-y-intercept", "name": "Y Intercept Calculator", "description": "Calculate y intercept with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "math", "canonical_url": "https://trustycalculator.com/math/y-intercept-calculator", "formula_version": "math-y-intercept-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Precalculus 2e", "url": "https://openstax.org/details/books/precalculus-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-reference-ap-lang-score", "name": "AP Lang Practice Composite Calculator", "description": "Calculate ap lang practice composite with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "reference", "canonical_url": "https://trustycalculator.com/reference/ap-lang-score-calculator", "formula_version": "reference-ap-lang-score-v1", "risk": "maintained", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "College Board", "title": "AP English Language and Composition Exam", "url": "https://apstudents.collegeboard.org/courses/ap-english-language-and-composition/assessment", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-reference-azimuth", "name": "Azimuth Calculator", "description": "Calculate azimuth with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "reference", "canonical_url": "https://trustycalculator.com/reference/azimuth-calculator", "formula_version": "reference-azimuth-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "GeographicLib", "title": "Geodesic calculations on an ellipsoid of revolution", "url": "https://geographiclib.sourceforge.io/html/java/net/sf/geographiclib/Geodesic.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-reference-bag", "name": "Bag Calculator", "description": "Calculate bag with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "reference", "canonical_url": "https://trustycalculator.com/reference/bag-calculator", "formula_version": "reference-bag-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "College Algebra 2e", "url": "https://openstax.org/details/books/college-algebra-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-reference-calculadora-libras-y-onzas", "name": "Calculadora Libras Y Onzas Calculator", "description": "Calculate calculadora libras y onzas with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "reference", "canonical_url": "https://trustycalculator.com/reference/calculadora-libras-y-onzas-calculator", "formula_version": "reference-calculadora-libras-y-onzas-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Guide for the Use of the International System of Units (SI)", "url": "https://www.nist.gov/pml/special-publication-811", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-reference-graduation-by-birthday", "name": "Graduation By Birthday Calculator", "description": "Calculate graduation by birthday with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "reference", "canonical_url": "https://trustycalculator.com/reference/graduation-by-birthday-calculator", "formula_version": "reference-graduation-by-birthday-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "College Algebra 2e", "url": "https://openstax.org/details/books/college-algebra-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-reference-letters-to-numbers", "name": "Letters To Numbers Calculator", "description": "Calculate letters to numbers with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "reference", "canonical_url": "https://trustycalculator.com/reference/letters-to-numbers-calculator", "formula_version": "a1z26-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "The Unicode Consortium", "title": "Unicode Character Code Charts", "url": "https://www.unicode.org/charts/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-reference-microwave-wattage", "name": "Microwave Wattage Calculator", "description": "Calculate microwave wattage with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "reference", "canonical_url": "https://trustycalculator.com/reference/microwave-wattage-calculator", "formula_version": "reference-microwave-wattage-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Purdue University Extension", "title": "Microwave Cooking: Wattage and Time Conversion", "url": "https://extension.purdue.edu/county/elkhart/_docs/microwave-for-ws2.pdf", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-reference-nether-portal", "name": "Nether Portal Calculator", "description": "Calculate nether portal with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "reference", "canonical_url": "https://trustycalculator.com/reference/nether-portal-calculator", "formula_version": "minecraft-dimension-coordinate-conversion-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Minecraft Wiki contributors", "title": "Nether portal — coordinate conversion", "url": "https://minecraft.wiki/w/Nether_portal#Portal_linkage_between_Overworld_and_Nether", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-reference-rounds-per-minute", "name": "Rounds Per Minute Calculator", "description": "Calculate rounds per minute with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "reference", "canonical_url": "https://trustycalculator.com/reference/rounds-per-minute-calculator", "formula_version": "reference-rounds-per-minute-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "College Algebra 2e", "url": "https://openstax.org/details/books/college-algebra-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-reference-simulateur-bac", "name": "Simulateur Bac Calculator", "description": "Calculate simulateur bac with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "reference", "canonical_url": "https://trustycalculator.com/reference/simulateur-bac-calculator", "formula_version": "reference-simulateur-bac-v2", "risk": "maintained", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Ministère de l’Éducation nationale", "title": "Comment calculer votre note au baccalauréat", "url": "https://www.education.gouv.fr/reussir-au-lycee/comment-calculer-votre-note-au-baccalaureat-325511", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-reference-strikethrough-text", "name": "Strikethrough Text Calculator", "description": "Calculate strikethrough text with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "reference", "canonical_url": "https://trustycalculator.com/reference/strikethrough-text-calculator", "formula_version": "unicode-combining-strikethrough-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "The Unicode Consortium", "title": "Unicode Character Code Charts", "url": "https://www.unicode.org/charts/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-reference-subscript-generator", "name": "Subscript Generator Calculator", "description": "Calculate subscript generator with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "reference", "canonical_url": "https://trustycalculator.com/reference/subscript-generator-calculator", "formula_version": "unicode-subscript-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "The Unicode Consortium", "title": "Unicode Character Code Charts", "url": "https://www.unicode.org/charts/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-reference-sunscreen", "name": "Sunscreen Calculator", "description": "Calculate sunscreen with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "reference", "canonical_url": "https://trustycalculator.com/reference/sunscreen-calculator", "formula_version": "reference-sunscreen-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "U.S. Food and Drug Administration", "title": "Sunscreen: How to Help Protect Your Skin from the Sun", "url": "https://www.fda.gov/drugs/understanding-over-counter-medicines/sunscreen-how-help-protect-your-skin-sun", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-reference-tv-size-distance", "name": "TV Size Distance Calculator", "description": "Calculate tv size distance with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "reference", "canonical_url": "https://trustycalculator.com/reference/tv-size-distance-calculator", "formula_version": "reference-tv-size-distance-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Society of Motion Picture and Television Engineers", "title": "SMPTE ST 2080-3: Reference Viewing Environment for Evaluation of HDTV Images", "url": "https://pub.smpte.org/pub/st2080-3/st2080-3-2017.pdf", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-reference-vocal-range", "name": "Vocal MIDI Range Calculator", "description": "Calculate vocal midi range with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "reference", "canonical_url": "https://trustycalculator.com/reference/vocal-range-calculator", "formula_version": "reference-vocal-range-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "MIDI Association", "title": "Creating a MIDI collaboration app: MIDI note-to-frequency formula", "url": "https://midi.org/creating-a-midi-collaboration-app-using-express-js-socket-io", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-reference-wingdings-translator", "name": "Wingdings Translator Calculator", "description": "Calculate wingdings translator with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "reference", "canonical_url": "https://trustycalculator.com/reference/wingdings-translator-calculator", "formula_version": "wingdings-1-unicode-equivalent-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Microsoft", "title": "Wingdings font family", "url": "https://learn.microsoft.com/en-us/typography/font-list/wingdings", "reviewed_at": "2026-08-14" }, { "publisher": "The Unicode Consortium", "title": "Unicode Character Code Charts", "url": "https://www.unicode.org/charts/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-acceleration", "name": "Acceleration Calculator", "description": "Calculate acceleration with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/acceleration-calculator", "formula_version": "science-acceleration-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "University Physics Volume 1", "url": "https://openstax.org/details/books/university-physics-volume-1", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-attenuation", "name": "Attenuation Calculator", "description": "Calculate attenuation with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/attenuation-calculator", "formula_version": "science-attenuation-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "NIST Guide to the SI, Chapter 5: Units Outside the SI", "url": "https://www.nist.gov/pml/special-publication-811/nist-guide-si-chapter-5-units-outside-si", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-beer-lambert-law", "name": "Beer Lambert Law Calculator", "description": "Calculate beer lambert law with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/beer-lambert-law-calculator", "formula_version": "science-beer-lambert-law-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Chemistry 2e", "url": "https://openstax.org/details/books/chemistry-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-boiling-point", "name": "Boiling Point Calculator", "description": "Calculate boiling point with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/boiling-point-calculator", "formula_version": "science-boiling-point-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Chemistry 2e", "url": "https://openstax.org/details/books/chemistry-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-centrifugal-force", "name": "Centrifugal Force Calculator", "description": "Calculate centrifugal force with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/centrifugal-force-calculator", "formula_version": "science-centrifugal-force-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "University Physics Volume 1", "url": "https://openstax.org/details/books/university-physics-volume-1", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-chemical-equation-balancer", "name": "Chemical Equation Balancer Calculator", "description": "Calculate chemical equation balancer with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/chemical-equation-balancer-calculator", "formula_version": "chemical-equation-exact-nullspace-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Chemistry 2e", "url": "https://openstax.org/details/books/chemistry-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-chemical-name", "name": "Reviewed Common Chemical Name Lookup", "description": "Calculate reviewed common chemical name lookup with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/chemical-name-calculator", "formula_version": "common-chemical-name-lookup-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Chemistry 2e", "url": "https://openstax.org/details/books/chemistry-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-coulombs-law", "name": "Coulombs Law Calculator", "description": "Calculate coulombs law with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/coulombs-law-calculator", "formula_version": "science-coulombs-law-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "University Physics Volume 2", "url": "https://openstax.org/details/books/university-physics-volume-2", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-earth-curvature", "name": "Earth Curvature Calculator", "description": "Calculate earth curvature with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/earth-curvature-calculator", "formula_version": "science-earth-curvature-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "College Algebra 2e", "url": "https://openstax.org/details/books/college-algebra-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-elastic-potential-energy", "name": "Elastic Potential Energy Calculator", "description": "Calculate elastic potential energy with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/elastic-potential-energy-calculator", "formula_version": "science-elastic-potential-energy-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "University Physics Volume 1", "url": "https://openstax.org/details/books/university-physics-volume-1", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-frequency", "name": "Frequency Calculator", "description": "Calculate frequency with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/frequency-calculator", "formula_version": "science-frequency-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "University Physics Volume 1", "url": "https://openstax.org/details/books/university-physics-volume-1", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-gravitational-force", "name": "Gravitational Force Calculator", "description": "Calculate gravitational force with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/gravitational-force-calculator", "formula_version": "science-gravitational-force-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "University Physics Volume 1", "url": "https://openstax.org/details/books/university-physics-volume-1", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-half-life", "name": "Half Life Calculator", "description": "Calculate half life with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/half-life-calculator", "formula_version": "science-half-life-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Chemistry 2e", "url": "https://openstax.org/details/books/chemistry-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-impulse-and-momentum", "name": "Impulse And Momentum Calculator", "description": "Calculate impulse and momentum with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/impulse-and-momentum-calculator", "formula_version": "science-impulse-and-momentum-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "University Physics Volume 1", "url": "https://openstax.org/details/books/university-physics-volume-1", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-light-year", "name": "Light Year Calculator", "description": "Calculate light year with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/light-year-calculator", "formula_version": "science-light-year-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "CODATA Value: speed of light in vacuum", "url": "https://physics.nist.gov/cgi-bin/cuu/Value?c", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-mach-number", "name": "Mach Number Calculator", "description": "Calculate mach number with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/mach-number-calculator", "formula_version": "science-mach-number-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "NASA Glenn Research Center", "title": "Mach Number", "url": "https://www.grc.nasa.gov/www/k-12/airplane/mach.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-mass-moment-of-inertia", "name": "Mass Moment Of Inertia Calculator", "description": "Calculate mass moment of inertia with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/mass-moment-of-inertia-calculator", "formula_version": "science-mass-moment-of-inertia-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "University Physics Volume 1", "url": "https://openstax.org/details/books/university-physics-volume-1", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-net-ionic-equation", "name": "Net Ionic Equation Calculator", "description": "Calculate net ionic equation with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/net-ionic-equation-calculator", "formula_version": "balanced-spectator-ion-cancellation-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Chemistry 2e", "url": "https://openstax.org/details/books/chemistry-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-normal-force", "name": "Normal Force Calculator", "description": "Calculate normal force with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/normal-force-calculator", "formula_version": "science-normal-force-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "University Physics Volume 1", "url": "https://openstax.org/details/books/university-physics-volume-1", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-npsh-net-positive-suction-head", "name": "NPSH Net Positive Suction Head Calculator", "description": "Calculate npsh net positive suction head with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/npsh-net-positive-suction-head-calculator", "formula_version": "science-npsh-net-positive-suction-head-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Hydraulic Institute", "title": "The Basics of NPSH and Pump Operating Regions", "url": "https://www.pumps.org/2022/12/07/the-basics-of-npsh-pump-operating-regions/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-ohms-law-power", "name": "Ohms Law Power Calculator", "description": "Calculate ohms law power with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/ohms-law-power-calculator", "formula_version": "science-ohms-law-power-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "University Physics Volume 2", "url": "https://openstax.org/details/books/university-physics-volume-2", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-percentage-concentration-to-molarity", "name": "Percentage Concentration To Molarity Calculator", "description": "Calculate percentage concentration to molarity with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/percentage-concentration-to-molarity-calculator", "formula_version": "science-percentage-concentration-to-molarity-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Chemistry 2e", "url": "https://openstax.org/details/books/chemistry-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-reaction-time", "name": "Reaction Time Calculator", "description": "Calculate reaction time with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/reaction-time-calculator", "formula_version": "science-reaction-time-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "University Physics Volume 1", "url": "https://openstax.org/details/books/university-physics-volume-1", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-solubility-rules", "name": "Solubility Rules Calculator", "description": "Calculate solubility rules with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/solubility-rules-calculator", "formula_version": "general-solubility-rules-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Chemistry 2e", "url": "https://openstax.org/details/books/chemistry-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-specific-gas-constant", "name": "Specific Gas Constant Calculator", "description": "Calculate specific gas constant with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/specific-gas-constant-calculator", "formula_version": "science-specific-gas-constant-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "CODATA Value: molar gas constant", "url": "https://physics.nist.gov/cgi-bin/cuu/Value?r", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-specific-gravity", "name": "Specific Gravity Calculator", "description": "Calculate specific gravity with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/specific-gravity-calculator", "formula_version": "science-specific-gravity-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Chemistry 2e", "url": "https://openstax.org/details/books/chemistry-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-speed-of-light", "name": "Speed Of Light Calculator", "description": "Calculate speed of light with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/speed-of-light-calculator", "formula_version": "science-speed-of-light-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "CODATA Value: speed of light in vacuum", "url": "https://physics.nist.gov/cgi-bin/cuu/Value?c", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-speed-of-sound", "name": "Speed Of Sound Calculator", "description": "Calculate speed of sound with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/speed-of-sound-calculator", "formula_version": "science-speed-of-sound-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "NASA Glenn Research Center", "title": "Speed of Sound", "url": "https://www.grc.nasa.gov/www/k-12/airplane/sound.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-stress", "name": "Stress Calculator", "description": "Calculate stress with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/stress-calculator", "formula_version": "science-stress-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "University Physics Volume 1", "url": "https://openstax.org/details/books/university-physics-volume-1", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-water-density", "name": "Water Density Calculator", "description": "Calculate water density with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/water-density-calculator", "formula_version": "science-water-density-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "NIST Reference Fluid Thermodynamic and Transport Properties Database (REFPROP)", "url": "https://www.nist.gov/srd/refprop", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-watt", "name": "Watt Calculator", "description": "Calculate watt with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/watt-calculator", "formula_version": "science-watt-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "University Physics Volume 2", "url": "https://openstax.org/details/books/university-physics-volume-2", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-wattage-to-amperage", "name": "Wattage To Amperage Calculator", "description": "Calculate wattage to amperage with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/wattage-to-amperage-calculator", "formula_version": "real-power-current-by-system-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Schneider Electric", "title": "Definition of reactive power", "url": "https://www.electrical-installation.org/enwiki/Definition_of_reactive_power", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-what-is-a-logic-gate", "name": "What Is A Logic Gate Calculator", "description": "Calculate what is a logic gate with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/what-is-a-logic-gate-calculator", "formula_version": "boolean-logic-gates-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Circuit Complexity", "url": "https://csrc.nist.gov/Projects/circuit-complexity", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-wind-correction-angle", "name": "Wind Correction Angle Calculator", "description": "Calculate wind correction angle with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/wind-correction-angle-calculator", "formula_version": "science-wind-correction-angle-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Federal Aviation Administration", "title": "Airplane Flying Handbook, Chapter 7: Ground Reference Maneuvers", "url": "https://www.faa.gov/sites/faa.gov/files/regulations_policies/handbooks_manuals/aviation/airplane_handbook/08_afh_ch7.pdf", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-science-work", "name": "Work Calculator", "description": "Calculate work with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "science", "canonical_url": "https://trustycalculator.com/science/work-calculator", "formula_version": "science-work-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "University Physics Volume 1", "url": "https://openstax.org/details/books/university-physics-volume-1", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-time-30-min", "name": "30 Min Calculator", "description": "Calculate 30 min with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "time", "canonical_url": "https://trustycalculator.com/time/30-min-calculator", "formula_version": "duration-minutes-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "International Organization for Standardization", "title": "ISO 8601 — Date and time format", "url": "https://www.iso.org/iso-8601-date-and-time-format.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-time-8-hour-shift", "name": "8 Hour Shift Calculator", "description": "Calculate 8 hour shift with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "time", "canonical_url": "https://trustycalculator.com/time/8-hour-shift-calculator", "formula_version": "clock-minute-offset-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "International Organization for Standardization", "title": "ISO 8601 — Date and time format", "url": "https://www.iso.org/iso-8601-date-and-time-format.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-time-age-difference", "name": "Age Difference Calculator", "description": "Calculate age difference with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "time", "canonical_url": "https://trustycalculator.com/time/age-difference-calculator", "formula_version": "utc-calendar-difference-age-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "International Organization for Standardization", "title": "ISO 8601 — Date and time format", "url": "https://www.iso.org/iso-8601-date-and-time-format.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-time-business-days", "name": "Business Days Calculator", "description": "Calculate business days with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "time", "canonical_url": "https://trustycalculator.com/time/business-days-calculator", "formula_version": "weekday-counter-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "International Organization for Standardization", "title": "ISO 8601 — Date and time format", "url": "https://www.iso.org/iso-8601-date-and-time-format.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-time-day-counter", "name": "Day Counter Calculator", "description": "Calculate day counter with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "time", "canonical_url": "https://trustycalculator.com/time/day-counter-calculator", "formula_version": "utc-date-offset-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "International Organization for Standardization", "title": "ISO 8601 — Date and time format", "url": "https://www.iso.org/iso-8601-date-and-time-format.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-time-day-of-the-year", "name": "Day Of The Year Calculator", "description": "Calculate day of the year with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "time", "canonical_url": "https://trustycalculator.com/time/day-of-the-year-calculator", "formula_version": "day-of-year-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "International Organization for Standardization", "title": "ISO 8601 — Date and time format", "url": "https://www.iso.org/iso-8601-date-and-time-format.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-time-days-from-today", "name": "Days From Today Calculator", "description": "Calculate days from today with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "time", "canonical_url": "https://trustycalculator.com/time/days-from-today-calculator", "formula_version": "utc-date-offset-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "International Organization for Standardization", "title": "ISO 8601 — Date and time format", "url": "https://www.iso.org/iso-8601-date-and-time-format.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-time-days-until", "name": "Days Until Calculator", "description": "Calculate days until with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "time", "canonical_url": "https://trustycalculator.com/time/days-until-calculator", "formula_version": "utc-calendar-difference-days-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "International Organization for Standardization", "title": "ISO 8601 — Date and time format", "url": "https://www.iso.org/iso-8601-date-and-time-format.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-time-minute", "name": "Minute Calculator", "description": "Calculate minute with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "time", "canonical_url": "https://trustycalculator.com/time/minute-calculator", "formula_version": "duration-minutes-conversion-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "International Organization for Standardization", "title": "ISO 8601 — Date and time format", "url": "https://www.iso.org/iso-8601-date-and-time-format.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-time-month-counter", "name": "Month Counter Calculator", "description": "Calculate month counter with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "time", "canonical_url": "https://trustycalculator.com/time/month-counter-calculator", "formula_version": "gregorian-month-length-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "International Organization for Standardization", "title": "ISO 8601 — Date and time format", "url": "https://www.iso.org/iso-8601-date-and-time-format.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-time-number-days", "name": "Number Days Calculator", "description": "Calculate number days with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "time", "canonical_url": "https://trustycalculator.com/time/number-days-calculator", "formula_version": "gregorian-month-length-v1", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "International Organization for Standardization", "title": "ISO 8601 — Date and time format", "url": "https://www.iso.org/iso-8601-date-and-time-format.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "op-time-years-between-dates", "name": "Years Between Dates Calculator", "description": "Calculate years between dates with a reviewed Trusty Calculator formula.", "family": "opportunity", "category": "time", "canonical_url": "https://trustycalculator.com/time/years-between-dates-calculator", "formula_version": "utc-calendar-difference-years-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "International Organization for Standardization", "title": "ISO 8601 — Date and time format", "url": "https://www.iso.org/iso-8601-date-and-time-format.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "oregon-paycheck", "name": "Oregon Paycheck Calculator", "description": "Estimate Oregon take-home pay with 2026 IRS and state withholding methods, FICA, and supported payroll premiums.", "family": "structured", "category": "paycheck", "canonical_url": "https://trustycalculator.com/paycheck/oregon-paycheck-calculator", "formula_version": "2026.3.0", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Internal Revenue Service", "title": "Publication 15-T (2026), Federal Income Tax Withholding Methods", "url": "https://www.irs.gov/publications/p15t", "reviewed_at": "2026-08-14" }, { "publisher": "Social Security Administration", "title": "Contribution and Benefit Base Determination", "url": "https://www.ssa.gov/OACT/COLA/cbbdet.html", "reviewed_at": "2026-08-14" }, { "publisher": "Internal Revenue Service", "title": "Questions and Answers for the Additional Medicare Tax", "url": "https://www.irs.gov/businesses/small-businesses-self-employed/questions-and-answers-for-the-additional-medicare-tax", "reviewed_at": "2026-08-14" }, { "publisher": "Internal Revenue Service", "title": "Publication 15-B (2026), Employer's Tax Guide to Fringe Benefits", "url": "https://www.irs.gov/publications/p15b", "reviewed_at": "2026-08-14" }, { "publisher": "Oregon Department of Revenue", "title": "2026 Oregon Withholding Tax Formulas, 150-206-436", "url": "https://www.oregon.gov/dor/forms/FormsPubs/withholding-tax-formulas_206-436_2026.pdf", "reviewed_at": "2026-08-14" }, { "publisher": "Oregon Department of Revenue", "title": "Statewide Transit Tax employee withholding", "url": "https://www.oregon.gov/dor/Pages/revenue-stream.aspx", "reviewed_at": "2026-08-14" }, { "publisher": "Paid Leave Oregon", "title": "2026 employee contribution rate and maximum wages", "url": "https://paidleave.oregon.gov/resources/", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "p-value", "name": "P-Value Calculator", "description": "Calculate a lower-tail, upper-tail, or two-sided p-value from a z statistic under the standard normal model.", "family": "structured", "category": "math", "canonical_url": "https://trustycalculator.com/math/p-value-calculator", "formula_version": "standard-normal-tail-six-decimal-v2", "risk": "standard", "reviewed_at": "2026-08-22", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "repository_reviewed", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "What are confidence intervals and p-values?", "url": "https://www.itl.nist.gov/div898/handbook/prc/section1/prc131.htm", "reviewed_at": "2026-08-22" }, { "publisher": "National Institute of Standards and Technology", "title": "Normal Distribution", "url": "https://www.itl.nist.gov/div898/handbook/eda/section3/eda3661.htm", "reviewed_at": "2026-08-22" }, { "publisher": "OpenStax", "title": "Introductory Statistics 2e — Full Hypothesis-Test Examples", "url": "https://openstax.org/books/introductory-statistics-2e/pages/9-5-additional-information-and-full-hypothesis-test-examples", "reviewed_at": "2026-08-22" } ] }, { "calculator_id": "paint", "name": "Paint Calculator", "description": "Estimate paint from room walls and an optional ceiling, or from known area, with openings, coats, coverage, and waste.", "family": "structured", "category": "construction", "canonical_url": "https://trustycalculator.com/construction/paint-calculator", "formula_version": "room-or-area-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Circumference, Area and Volume", "url": "https://www.nist.gov/pml/owm/circumference-area-and-volume", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Unit Conversion", "url": "https://www.nist.gov/pml/owm/si-units-length", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "parallel-resistor", "name": "Parallel Resistor Calculator", "description": "Calculate equivalent resistance, total current, and total power for ideal resistors connected in parallel.", "family": "structured", "category": "electrical", "canonical_url": "https://trustycalculator.com/electrical/parallel-resistor-calculator", "formula_version": "1.0.0", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax", "title": "University Physics Volume 2 — Resistors in Series and Parallel", "url": "https://openstax.org/books/university-physics-volume-2/pages/10-2-resistors-in-series-and-parallel", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "percent-off", "name": "Percent Off Calculator", "description": "Calculate discount savings, price after discount, optional sales tax, and the final checkout total.", "family": "structured", "category": "math", "canonical_url": "https://trustycalculator.com/math/percent-off-calculator", "formula_version": "discount-tax-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax", "title": "Prealgebra 2e", "url": "https://openstax.org/details/books/prealgebra-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "percentage", "name": "Percentage Calculator", "description": "Find a percentage of a value, determine what percent one value is of another, or calculate percentage change.", "family": "structured", "category": "math", "canonical_url": "https://trustycalculator.com/math/percentage-calculator", "formula_version": "three-way-percentage-v1", "risk": "standard", "reviewed_at": "2026-08-22", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "repository_reviewed", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax", "title": "Prealgebra 2e — Solve General Applications of Percent", "url": "https://openstax.org/books/prealgebra-2e/pages/6-2-solve-general-applications-of-percent", "reviewed_at": "2026-08-22" } ] }, { "calculator_id": "pool-salt", "name": "Pool Salt Calculator", "description": "Calculate how much pool salt to add from pool volume and the current and target salinity.", "family": "structured", "category": "construction", "canonical_url": "https://trustycalculator.com/construction/pool-salt-calculator", "formula_version": "1.0.0", "risk": "maintained", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "Centers for Disease Control and Prevention", "title": "About Home Pool and Hot Tub Water Treatment and Testing", "url": "https://www.cdc.gov/healthy-swimming/about/about-home-pool-and-hot-tub-water-treatment-and-testing.html", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Unit Conversion", "url": "https://www.nist.gov/pml/owm/si-units-length", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "pool-volume", "name": "Pool Volume Calculator", "description": "Estimate pool water volume from plan dimensions, shape, shallow depth, and deep depth.", "family": "structured", "category": "construction", "canonical_url": "https://trustycalculator.com/construction/pool-volume-calculator", "formula_version": "1.0.0", "risk": "maintained", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Circumference, Area and Volume", "url": "https://www.nist.gov/pml/owm/circumference-area-and-volume", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Unit Conversion", "url": "https://www.nist.gov/pml/owm/si-units-length", "reviewed_at": "2026-08-14" }, { "publisher": "Centers for Disease Control and Prevention", "title": "About Home Pool and Hot Tub Water Treatment and Testing", "url": "https://www.cdc.gov/healthy-swimming/about/about-home-pool-and-hot-tub-water-treatment-and-testing.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "power-to-weight-ratio", "name": "Power-to-Weight Ratio Calculator", "description": "Calculate power-to-weight ratio in watts per kilogram and horsepower per pound.", "family": "structured", "category": "math", "canonical_url": "https://trustycalculator.com/math/power-to-weight-ratio-calculator", "formula_version": "1.0.0", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "SI Units — Mass, Force, and Weight", "url": "https://www.nist.gov/pml/owm/si-units-mass", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "present-value", "name": "Present Value Calculator", "description": "Present Value Calculator: calculate Present value from Solve for, with transparent formulas, assumptions, and sources.", "family": "structured", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/present-value-calculator", "formula_version": "single-sum-nominal-compounding-v1", "risk": "standard", "reviewed_at": "2026-08-24", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax, Rice University", "title": "Principles of Finance 2e — Applications of Time Value of Money in Finance", "url": "https://openstax.org/books/principles-finance-2e/pages/7-4-applications-of-tvm-in-finance", "reviewed_at": "2026-08-24" }, { "publisher": "U.S. Securities and Exchange Commission, Investor.gov", "title": "Compound Interest Calculator", "url": "https://www.investor.gov/financial-tools-calculators/calculators/compound-interest-calculator", "reviewed_at": "2026-08-24" } ] }, { "calculator_id": "proportion", "name": "Proportion Calculator", "description": "Solve any one missing term in A divided by B equals C divided by D and show the completed proportion.", "family": "structured", "category": "math", "canonical_url": "https://trustycalculator.com/math/proportion-calculator", "formula_version": "any-missing-term-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax", "title": "Elementary Algebra 2e", "url": "https://openstax.org/details/books/elementary-algebra-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "prorated-rent", "name": "Prorated Rent Calculator", "description": "Estimate partial-month rent using actual calendar days, a fixed 30-day month, or annual daily rent with leap-year handling.", "family": "structured", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/prorated-rent-calculator", "formula_version": "rent-proration-v1", "risk": "maintained", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "U.S. Department of Housing and Urban Development", "title": "HUD Handbook 4350.3 — Occupancy Requirements", "url": "https://www.hud.gov/hud-partners/multifamily-handbooks", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "puppy-weight", "name": "Puppy Weight Calculator", "description": "Estimate an adult-weight range from current puppy weight and an evidence-based maturity-percentage range.", "family": "structured", "category": "lifestyle", "canonical_url": "https://trustycalculator.com/lifestyle/puppy-weight-calculator", "formula_version": "maturity-range-scenario-2.0.0", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "American Animal Hospital Association", "title": "Introduction to Feeding Normal Dogs — Puppy Growth", "url": "https://www.aaha.org/wp-content/uploads/globalassets/02-guidelines/canine-life-stage-2019/introduction-to-feeding-dogs.pdf", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "pythagorean-theorem", "name": "Pythagorean Theorem Calculator", "description": "Solve a right triangle’s missing leg or hypotenuse from either two known sides, then calculate area.", "family": "structured", "category": "math", "canonical_url": "https://trustycalculator.com/math/pythagorean-theorem-calculator", "formula_version": "any-two-sides-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax", "title": "Elementary Algebra 2e", "url": "https://openstax.org/details/books/elementary-algebra-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "radical", "name": "Radical Calculator", "description": "Factor an integer radical into an exact simplified form and calculate its approximate principal real root.", "family": "structured", "category": "math", "canonical_url": "https://trustycalculator.com/math/radical-calculator", "formula_version": "integer-factorization-v2", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax", "title": "Elementary Algebra 2e", "url": "https://openstax.org/details/books/elementary-algebra-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "rafter", "name": "Rafter Calculator", "description": "Find common-rafter geometry from either building span or horizontal run, pitch, overhang, and ridge thickness.", "family": "structured", "category": 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"family": "structured", "category": "math", "canonical_url": "https://trustycalculator.com/math/ratio-calculator", "formula_version": "multi-term-scale-v3", "risk": "standard", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "OpenStax", "title": "Prealgebra 2e", "url": "https://openstax.org/details/books/prealgebra-2e", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "recessed-lighting", "name": "Recessed Lighting Calculator", "description": "Estimate a centered recessed-light grid from maximum spacing or an early lumen-and-beam planning model.", "family": "structured", "category": "electrical", "canonical_url": "https://trustycalculator.com/electrical/recessed-lighting-calculator", "formula_version": "spacing-or-illuminance-v2", "risk": "maintained", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "U.S. Department of Energy", "title": "LED Basics", "url": "https://www.energy.gov/cmei/ssl/led-basics", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Circumference, Area and Volume", "url": "https://www.nist.gov/pml/owm/circumference-area-and-volume", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "risk-adjusted-performance", "name": "Risk-Adjusted Performance Calculator", "description": "Risk-Adjusted Performance Calculator: calculate Sharpe ratio from Calculation mode, with transparent formulas, assumptions, and sources.", "family": "structured", "category": "finance", "canonical_url": "https://trustycalculator.com/finance/risk-adjusted-performance-calculator", "formula_version": "sharpe-treynor-jensen-v1", "risk": "high", "reviewed_at": 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Sharpe, Stanford University", "title": "The Sharpe Ratio", "url": "https://web.stanford.edu/~wfsharpe/art/sr/sr.htm", "reviewed_at": "2026-08-24" }, { "publisher": "The Journal of Finance", "title": "The Performance of Mutual Funds in the Period 1945–1964", "url": "https://onlinelibrary.wiley.com/doi/10.1111/j.1540-6261.1968.tb00815.x", "reviewed_at": "2026-08-24" } ] }, { "calculator_id": "roof-pitch", "name": "Roof Pitch Calculator", "description": "Convert roof rise and run into slope, angle, multiplier, and roof area.", "family": "legacy", "category": "construction", "canonical_url": "https://trustycalculator.com/construction/roof-pitch-calculator", "formula_version": "1.0.0", "risk": "high", "reviewed_at": "2026-08-13", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "GAF", "title": "How to measure a roofing square", "url": "https://www.gaf.com/en-us/blog/your-home/how-to-measure-a-roofing-square-3faec381-6f6f-49ff-841f-114c59108f2a", "reviewed_at": "2026-08-13" }, { "publisher": "Owens Corning", "title": "DIY roofing", "url": "https://www.owenscorning.com/en-us/roofing/blog/diy-roofing", "reviewed_at": "2026-08-13" } ] }, { "calculator_id": "roof-square-footage", "name": "Roof Square Footage Calculator", "description": "Convert known projected area or a rectangular building footprint with overhangs into sloped roof area and roofing squares.", "family": "structured", "category": "construction", "canonical_url": "https://trustycalculator.com/construction/roof-square-footage-calculator", "formula_version": "projected-area-or-footprint-v2", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "GAF", "title": "Pro Field Guide for Steep-Slope Roofs", "url": "https://www.gaf.com/en-us/document-library/documents/installation-instructions-%26-guides/pro-field-guide-for-steep-slope-roofs-resgn103.pdf", "reviewed_at": "2026-08-14" }, { "publisher": "National Institute of Standards and Technology", "title": "Circumference, Area and Volume", "url": "https://www.nist.gov/pml/owm/circumference-area-and-volume", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "room-building-square-footage", "name": "Room and Building Square Footage Calculator", "description": "Calculate repeated rectangular floors or combine rectangular, triangular, and round sections with independent counts.", "family": "structured", "category": "construction", "canonical_url": "https://trustycalculator.com/construction/room-building-square-footage-calculator", "formula_version": "repeated-floor-or-mixed-shapes-v2", "risk": "maintained", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, 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"existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Handbook 44, Appendix C: General Tables of Units of Measurement", "url": "https://www.nist.gov/pml/owm/si-units-length-area-volume-weight-mass-and-temperature", "reviewed_at": "2026-08-13" }, { "publisher": "Federal Highway Administration", "title": "Estimating table: weights and measures", "url": "https://highways.dot.gov/federal-lands/design/tools/cfl/estimating-table.pdf", "reviewed_at": "2026-08-13" } ] }, { "calculator_id": "sat-score", "name": "SAT Score Calculator", "description": "Add entered SAT Reading and Writing and Math section scores into a 400–1,600 total.", "family": "structured", "category": "education", "canonical_url": "https://trustycalculator.com/education/sat-score-calculator", "formula_version": "digital-sat-section-sum-v1", "risk": "maintained", "reviewed_at": "2026-08-14", 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], "sources": [ { "publisher": "U.S. Securities and Exchange Commission, Investor.gov", "title": "Compound Interest Calculator", "url": "https://www.investor.gov/financial-tools-calculators/calculators/compound-interest-calculator", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "scrap-gold", "name": "Scrap Gold Calculator", "description": "Estimate scrap-gold payout from matching gross weights, exclusions, karats, entered price, currency, payout, and fixed fee.", "family": "structured", "category": "metals", "canonical_url": "https://trustycalculator.com/metals/scrap-gold-calculator", "formula_version": "multi-item-net-payout-v2", "risk": "high", "reviewed_at": "2026-08-14", "indexing_decision": "index", "strict_pass": null, "review_manifest_status": "existing_index_policy", "publication_reason_codes": [ "STRICT_REVIEW_MIGRATION_PENDING" ], "sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Precious Metals Conversion Information", "url": 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"sources": [ { "publisher": "National Institute of Standards and Technology", "title": "Precious Metals Conversion Information", "url": "https://www.nist.gov/pml/owm/metric-si/unit-conversion/precious-metals-conversion-information", "reviewed_at": "2026-08-14" }, { "publisher": "Federal Trade Commission", "title": "Buying Platinum, Gold, and Silver Jewelry", "url": "https://consumer.ftc.gov/articles/buying-platinum-gold-and-silver-jewelry", "reviewed_at": "2026-08-14" }, { "publisher": "Commodity Futures Trading Commission", "title": "10 Things to Ask Before Buying Physical Gold, Silver, or Other Metals", "url": "https://www.cftc.gov/LearnAndProtect/AdvisoriesAndArticles/Metals10Things.html", "reviewed_at": "2026-08-14" } ] }, { "calculator_id": "soap", "name": "Soap Lye Calculator", "description": "Calculate NaOH or KOH and water for matched oil weights and verified SAP values, purity, and superfat.", "family": "structured", "category": "lifestyle", "canonical_url": 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