Sand Calculator
The estimate combines geometric volume, your allowance, and a planning density. Sand type, grading, moisture, and compaction can substantially change delivered weight.
How to use this calculator
Measure the length, width, and installed depth.
Select the preferred volume and weight units.
Confirm the allowance and supplier density before ordering.
Formula
Order volume = area × depth × (1 + allowance). Weight = order volume × bulk density.
Worked example
A 5 m × 4 m area at 50 mm depth is 1 m³. With 10% extra, the order estimate is 1.1 m³.
Assumptions and limits
- Default density is 99 lb/ft³ and is editable.
- Default extra material is 10%.
- Moisture and compaction are not predicted.
Sources
- National Institute of Standards and Technology: Unit ConversionExact unit conversion and final-result rounding guidance. Reviewed 2026-08-14.
- Federal Highway Administration: Estimating TablesReference material densities used for planning estimates. Reviewed 2026-08-13.
Related calculators
Verification
How this calculator is checked
Trust comes from reproducible evidence, not model confidence. You can inspect the formula, assumptions, worked example, and cited sources on this page.
- Versioned calculationFormula logic is kept separate from the interface and covered by automated registry and behavior checks.
- Cited evidenceSources linked for independent checking: 2.
- Transparent AI useAI may assist drafting or adversarial review. Agreement between models is not proof, and no human expert review is claimed unless a named reviewer is shown.
Frequently asked questions
Why does wet sand weigh more?
Water fills pore space and increases mass, so supplier density or a measured bulk density is more reliable than a general default.
Can I use metric and US customary units in the Sand Calculator?
Yes. Unit changes convert the same canonical measurement; they do not reinterpret or round your original value.
When does the calculator round?
The calculation keeps full precision internally and rounds only the displayed result. Whole packages are rounded up at the final step.
Last updated 2026-08-25 · 1.0.0 · 1.0.0 · Published by YunFanLabs