Roof Pitch - How To Figure

Roof pitch refers to the amount of rise a roof has compared to the horizontal measurement of the roof called the run.

To see how pitch impacts the look of a garage and changes cost click the design center button on our pole barn kits page.

Construction Calculators & Charts
Cubic Yard Calculator
Roof Pitch Calculator
Truss Calculator
Rafter Calculator
Squaring Building Lines Example
The picture below shows the pitch of a 7-12 roof slope meaning that for 12" of horizontal measurement (roof run) the vertical measurement (roof rise) is 7".

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. If this isn't practical then perform the same measurement on the underside of the roof. We included a roof pitch chart below the 7-12 example image and the calculator below that.

7/12 Roof Pitch
roof pitch examples


roof pitches

Roof Pitches

12/12 pitch angle 45°

11/12 angle 42.51°

10/12 angle 39.81°

9/12 pitch angle 36.87°

8/12 - roof pitch degrees 33.69°

7/12 - 30.26°

6/12 - 26.57°

5/12 - still walkable 22.62°

4/12 - standard roof pitch 18.43°

3/12 typical in southern climates 14.04°

2/12 - low roof pitch 9.46°





Roof Pitch Table
1 12 4.76°
2 12 9.46°
3 12 14.04°
4 12 18.43°
5 12 22.62°
6 12 26.57°
7 12 30.26°
8 12 33.69°
9 12 36.87°
10 12 39.81°
11 12 42.51°
12 12 45°

Roof Pitch Calculator

If none of the above is working for you this tool will convert pitch to angle or angle to pitch for half degree roof slope calculations.

Enter any pitch or fraction of pitch to find angle. Enter any angle or fraction of angle to find pitch.


Roofing Pitch Calculator
Pitch   Angle  
 
Building Run
FEET    INCH
Building Rise
FEET    INCH
  Pitch

 

RIDGE HEIGHT CALCULATOR
Building Width Wall Height Roof Pitch
FT FT /12

 

Building Profile Generator
(Tool rounds to whole numbers)
Width Height Pitch Length
Rafter Length Calculator
Next » Roof Trusses
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