Roof Pitch Calculator

ROOFING CALCULATOR

Enter the rise and run. Everything else updates automatically.

Rise i

Run length i

Rafter length i

Roof pitch i

Roof pitch (%)

Roof pitch (x:12)

:12

Enter rise and run to calculate the roof pitch.

VISUAL GUIDE

Scaled roof profile

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Enter both measurements to see the roof drawn to scale.

the Rise and Run are internally normalized to meters, so changing a unit does not change the physical roof geometry. The displayed values are simply converted to the newly selected unit.