Roof pitch calculator
Type the rise and the run. Get the pitch, the angle and the slope, and see it drawn.
- Pitch
- 6/12
- Angle
- 26.6°
- Slope
- 50%
How to use it
- 1Measure the rise over 12 in of run.
- 2Type both numbers, in inches.
- 3Or type an angle to get the pitch.
This page, or the app?
| This page | Tapepal on iPhone | |
|---|---|---|
| Needs | Two numbers you measured | Just your phone against the rafter |
| Gives | Pitch, angle and slope | The angle, saved with a photo |
| Roof area | No | Scan 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.


