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Miter Angle Calculator

Construction
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Calculates the miter angle needed to create a tight joint between two pieces of material at a given angle.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Joint Angle (degrees) in the units shown.

Step 2

Read Miter Angle (degrees) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

90 Degree Corner

Joint Angle (degrees): 90 degrees

Miter Angle (degrees): 45 degrees

45 Degree Corner

Joint Angle (degrees): 45 degrees

Miter Angle (degrees): 67.5 degrees

135 Degree Corner

Joint Angle (degrees): 135 degrees

Miter Angle (degrees): 22.5 degrees

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