Roof pitch calculator

Type the rise and the run. Get the pitch, the angle and the slope, and see it drawn.

in
in
Pitch
6/12
Angle
26.6°
Slope
50%
26.6°

How to use it

  1. Measure the rise over 12 in of run.
  2. Type both numbers, in inches.
  3. Or type an angle to get the pitch.

This page, or the app?

This pageTapepal on iPhone
NeedsTwo numbers you measuredJust your phone against the rafter
GivesPitch, angle and slopeThe angle, saved with a photo
Roof areaNoScan the attic room for its area

Questions

What is a common roof pitch?

Most houses are between 4/12 and 9/12.

How do I turn degrees into pitch?

Multiply 12 by the tangent of the angle. 30° is about 7/12.

Is 6/12 steep?

It is a medium pitch, 26.6°. You can walk on it with care.

Guides that use it

More free tools

Measure the angle directly.Tapepal on the App StoreGet