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Compound Miter and Bevel Calculator

Calculate flat-cut miter and bevel settings from a crown molding spring angle and wall corner.

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

Inputs

Corner and molding profile

Range: 0.01–179.99 degrees

Measure the actual included inside corner. Left/right cut direction is not calculated.

Range: 0–90 degrees

Use the profile manufacturer's spring angle. The 38 degree default is an example for a common US 52/38 profile.

Result

Bevel setting magnitude
33.863 degrees
Miter setting magnitude
31.619 degrees

Formula

Miter setting magnitude
—
Bevel setting magnitude
—

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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.