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Picture Frame Matting Calculator

Result

Mat Window Width12.00 in
Mat Window Height14.00 in
Mat Area168.0 sq in
↗ Construction

Picture Frame Matting Calculator — free online calculator.

Formula

Window = Image + (2 × border); Mat Area = Window Width × Window Height
  • Picture Frame Matting Calculator calculates its result from Image, Border, Window Width, Window Height. It uses the formula Window = Image + (2 × border); Mat Area = Window Width × Window Height. Change any input to recalculate the result instantly.
  • The main inputs are Image Width, Image Height, Mat Border Width. Enter them in the units and format shown in the calculator.
  • Keep measurements and project assumptions consistent before comparing or combining values.
  • Changing any input above recalculates the result with the same calculation engine used by this page.

Example: Picture Frame Matting

Inputs
  • Image Width: 8
  • Image Height: 10
  • Mat Border Width: 2

Using Image = 10, Border = 3, Window Width = 4, Window Height = 5, the calculated result is 20.

Sample result: Calculating…

Frequently asked questions

What does the Picture Frame Matting calculate?

Picture Frame Matting Calculator — free online calculator.

Which values should I enter?

Enter Image Width, Image Height, Mat Border Width using the units and format shown beside each field.

What formula does this calculator use?

The calculator uses the following relationship: Window = Image + (2 × border); Mat Area = Window Width × Window Height.

Why might my result differ from another source?

Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.

Does the result update automatically?

Yes. Changing an input updates the result using the same calculation engine shown on this page.

Page information

Updated: October 10, 2026