Other than the 45 roof slope which is 12 in 12 none of the standard roof pitches 5 in 12 6 in 12 etc are equal to a whole degree.
12 12 roof pitch in degrees.
Roof pitch degree table.
This means if a roof rises 4 in the length of 12 your roof pitch would be 4 12 or 18 43 degrees.
Also roof pitch angle is sometimes referred to as 12 12 6 12 8 12 and so forth.
There are many websites which are offering this facility.
But how are going to determine the angle s degree.
The following table shows the roof pitch rise in run equivalents for all roof slopes in degrees from 1 to 72.
Image 1 12 to 12 12 roof pitch 7 12 pitch.
On blue prints architects engineers usually display the pitch of a roof in the format shown on the image where number 4 represents a rise and number 12 represents a length.
So these are the two ways in you find roof pitch degree for your roof.
Another option that is available for you in finding the pitch factor for your roof is to find roof pitch calculator online.