Roof Pitch Calculator
I know the
Rise and run
Angle in degrees
Percent slope
Ridge height and half span
Rise
in
Used with Rise and run
Run
in
Standard run is 12 in
Roof angle
deg
Used with Angle in degrees
Percent slope
%
Used with Percent slope
Ridge height above wall
ft
Used with Ridge height
Rafter run (half span)
ft
Wall to ridge, horizontal. Also used for rafter length
4/12
6/12
8/12
12/12
30 deg
Result
-
6/12
Free
roof pitch calculator
by
RoofingCalc Pro