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Frame and Mat Calculator

Calculate the mat border and the resulting frame size for a piece of art.

Your files stay on your deviceNo signup requiredNo watermarkFree browser-based tools
Artwork size8 × 10 in
Required frame (outer) size12 × 14 in (30.48 × 35.56 cm)

How it works

  1. Enter the artwork size.
  2. Enter the mat border width.
  3. Read the required outer frame size.

frame size = artwork size + (2 × mat border) on each dimension. A uniform border on all four sides is assumed.

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FAQ

How is the frame size calculated?

The mat border width is added to every edge of the artwork size, so the outer frame size is the artwork size plus twice the border width in each dimension.