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Miter Angle Calculator

Calculate equal miter geometry for two matching pieces meeting at a measured inside corner.

Prefilled values are examples. Replace them with measurements and current costs for your project.

Inputs

Measured corner

Range: 0–180 degrees

Measure the inside angle between the two finished pieces. The pieces are assumed to split this angle equally.

Result

Miter line angle to the piece edge
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Saw rotation from square
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Formula

Saw rotation from square
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Miter line angle to the piece edge
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Results are planning aids based on the inputs and assumptions shown. Verify dimensions, stock sizes, hardware clearances, kerf, and current prices against your project before cutting or quoting.