How to Calculate Frame Size
What is Frame Size?
A picture frame size calculator determines the matting, backing, and glass dimensions needed for a given artwork size. Standard mat widths range from 2–4 inches; the top and side mats are typically equal with the bottom mat slightly wider to correct for an optical illusion that makes equal-sided mats look bottom-heavy.
Step-by-Step Guide
- 1Input base values
- 2System computes results
Worked Examples
Input
Standard input
Result
Computed result
Formula application
Common Mistakes to Avoid
- ✕Precision loss
- ✕Ignoring variables
Frequently Asked Questions
What does this calculator do?
Input base values
How do I use this calculator?
System computes results
Ready to calculate? Try the free Frame Size Calculator
Try it yourself →