Calculate miter and bevel angles for corners and crown molding.
Corner Details
Enter the angle of the wall corner. For a standard square room, this is 90°.
Saw Settings
Cutting trim?
Enter the angle of your corner (usually 90°) to find the correct cut angle.
About this calculator
Overview
A miter cut creates a corner by joining two pieces of wood. For a standard flat frame, you simply divide the corner angle by 2. For crown molding, which sits at an angle, you perform a compound cut involving both miter and bevel settings.
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Pro Tips
Always measure the actual corner; walls are rarely perfectly 90 degrees.
For crown molding cut flat, use the compound miter settings. For crown molding cut 'nested', just use the standard miter setting but place the molding upside down.
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Fun Facts
"A standard square corner is 90 degrees."
"An octagonal planter or frame has 135 degree interior corners, requiring 22.5 degree miter cuts."
"Crown molding 'spring angle' is typically 38° or 45°."
