Roof Pitch Conversion Table

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.

Roof pitch conversion table.

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. Roof pitch and corresponding angles. The pitch of this roof is 4 8 12. Roof slope expressed as rise.

For roof slopes expressed as x in 12 rise in run the roof pitch multiplier is determined by finding the square root of rise run 1. Pitch tan angle use this when you express the angle of the roof pitch in degrees what is the standard pitch of a roof. To see what the degree equivalents are for standard rise in run roof pitches see our page quick reference. What is a roof pitch chart.

There are many tools out there. In essence a roof pitch chart is provided as a rough guide usually by a roofing company to help you see what the average roof pitches tend to be. Roof pitch refers to the measurement of the slope of a roof and you express this as a ratio. 48 10 4 8.

The calculator above can handle much of this math. Usually they come in the form of a roof pitch diagram chart but other times it will be presented to you in a conversion format. The following table shows the roof pitch rise in run equivalents for all roof slopes in degrees from 1 to 72. Now divide the rise by the multiplier to get the pitch eg.