Pitch Of Roof Calculator

Use the diagrams on this page as a reference when inputting rise and run and while interpreting the calculated results.

Pitch of roof calculator.

Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run. The roof pitch calculator is a convenient online tool you can use to quickly assess the pitch of your roof to determine the length of rafters you need. In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches. This roof pitch calculator is a handy tool that will help you quickly assess what is the pitch of your roof of what length of rafters you need for your construction works.

The pitch is commonly defined as the ratio of rise over run in the form of x 12. For example if a roof has a pitch of 4 12 then for every 12 inches the building extends horizontally it rises 4 inches. The roof pitch is the slope of the rafter. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot.

It is often compared to slope but is not exactly the same. Pitch is thus the ratio of the rise in inches to a 12 inch run and is often expressed using a semicolon for example 6 12. You can also use this roof slope calculator to recalculate the roof pitch from degrees to percents. After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually.

The roof pitch calculator calculates slope pitch angle and rafter lengths based on input of rise m and run r.