Roof Slope Calculator

Calculate the Roof slope with our free online tool using the input parameters: Rise, Pitch

Determining the slope of a roof is crucial in roof design as it impacts various factors such as interior space, drainage, style, and roofing material. The roof pitch or slope is calculated by measuring the vertical rise in inches over a horizontal twelve-inch length. Different types of roof slopes include flat roofs, low slopes, and steep slopes. Utilize our online slope angle calculator to calculate the run, slope, and angle of your roof.

Rise
Roof Pitch
/12
Run
Angle
Send the result to an email


    1 Number of calculations

    \text{Run (inches)} = \frac{{12 \times \text{Rise}}}{{\text{Roof Pitch}}}
    \text{Slope} = \left( \frac{{\text{Rise}}}{{\text{Run}}} \right) \times 100
    \text{Angle} = \tan^{-1}\left(\frac{{\text{Rise}}}{{\text{Run}}}\right)