Compound Miter Calculator
Calculate miter and bevel settings for two equal compound-miter pieces from the inside corner angle and workpiece tilt/spring angle.
Results
Miter setting
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Bevel setting
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Use the result as a planning estimate and verify project-specific measurements, manufacturer information and local requirements where relevant.
How it works
The calculator resolves the corner angle and workpiece spring/tilt angle into the saw’s miter and bevel components.
miter = atan(sin(spring) ÷ tan(corner/2))Limitations
- Saw scales and crown-orientation conventions vary. Confirm the sign/direction and make a test cut before cutting finished material.