Picture Frame Calculator
Use the Picture Frame Calculator for a transparent, instant calculation with validated inputs and cited sources. For a query such as “frame image size”, enter the matching values and units below and review the stated assumptions.
How to use this calculator
Enter the requested values and units.
Review the assumptions and any warnings shown with the result.
Use the result together with the cited source and your real-world requirements.
Formula
Opening dimensions add twice the mat border to the artwork; outer dimensions then add twice the frame-face width, and moulding length follows the resulting perimeter.
Worked example
Worked example: Inputs: Artwork width: 16 in; Artwork height: 20 in; Mat border: 2 in; Frame face width: 1.5 in. Outputs: Outer frame width: 23 in; Outer frame height: 27 in; Approximate moulding length: 100 in.
Assumptions and limits
- The result depends on the values, units, and assumptions entered. It does not infer missing context.
Sources
- National Institute of Standards and Technology: Guide for the Use of the International System of Units (SI)Reference material reviewed for the stated method, units, or domain. Confirm that its scope matches your use case. Reviewed 2026-08-14.
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Frequently asked questions
How does the Picture Frame Calculator work?
Opening dimensions add twice the mat border to the artwork; outer dimensions then add twice the frame-face width, and moulding length follows the resulting perimeter.
What should I enter?
Artwork width, Artwork height, Mat border, Frame face width
What should I verify?
Review the assumptions and any warnings shown with the result. The result depends on the values, units, and assumptions entered. It does not infer missing context.
Last updated 2026-08-14 · construction-picture-frame-v1 · opportunity-content-2026-08-14 · Trusty Calculator Editorial Team