Calculate the roof pitch as the proportion of rise and run.
Roof transition angle finder.
This handy little tool is the easiest way to accurately find your roof pitch.
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.
Use the diagrams on this page as a reference when inputting rise and run and while interpreting the calculated results.
Most angle finders only work on the top side of a roof.
Rafter rise run 1 5 6 2 25 36 38 25rafter 38 25 6 18 m.
Roof pitch can be efficiently calculated with the rise and run using the simple formula.
No fooling around with tape measures and levels.
Recalculate this value into an angle.
Angle arctan pitch arctan 0 25 14.
Roof pitch angle and slope factor charts.
The roof pitch calculator calculates slope pitch angle and rafter lengths based on input of rise m and run r.
Method to find out the roof pitch.
Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof.
The combination of two numbers are used to display or show the roof pitch.
Pitch rise run 1 5 6 25.
Once you know the rise and run you can apply pythagorean theorem to determine rafter roof angle and grade using the following formulae.
Simply set it on your roof or the underside of a rafter and read the gauge.
After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually.