Roof Pitch Calculator Roof Pitch Calculator Convert roof pitch between rise/run, 12‑based pitch, degrees, and percent slope. Estimate rafter length and roof height from span or run. Interactive Roof Pitch Calculator Rise & Run Pitch (x:12) Angle (°) % Slope Length units Feet Meters Building span (optional) ft Full width of building. Used to compute rise and rafter length. Eave overhang (optional) ft Horizontal overhang beyond wall. Added to rafter length. Rise ft Run ft Horizontal distance from wall plate to ridge. Rise (x) per 12 Enter the rise for every 12 units of run (x:12). Run is fixed at 12 units in this mode. Roof angle ° Angle between roof surface and horizontal. Slope (%) % Percent slope = rise ÷ run × 100. Calculate Reset Results Pitch & Slope Pitch (x:12): – Angle: – Percent slope: – Rise : Run: – Rafter & Height Run used: – Rise used: – Rafter length: – Total rafter incl. overhang: – What is roof pitch? Roof pitch describes how steep a roof is. In North America it is usually written as rise in inches per 12 inches of run , for example 6:12 . The higher the first number, the steeper the roof. Roof pitch can be expressed in several equivalent ways: Pitch (x:12) – e.g. 4:12, 6:12, 12:12 Angle in degrees – angle between roof surface and horizontal Percent slope – rise ÷ run × 100 Rise

Calculators in Roof Pitch Calculator Roof Pitch Calculator Convert roof pitch between rise/run, 12‑based pitch, degrees, and percent slope. Estimate rafter length and roof height from span or run. Interactive Roof Pitch Calculator Rise & Run Pitch (x:12) Angle (°) % Slope Length units Feet Meters Building span (optional) ft Full width of building. Used to compute rise and rafter length. Eave overhang (optional) ft Horizontal overhang beyond wall. Added to rafter length. Rise ft Run ft Horizontal distance from wall plate to ridge. Rise (x) per 12 Enter the rise for every 12 units of run (x:12). Run is fixed at 12 units in this mode. Roof angle ° Angle between roof surface and horizontal. Slope (%) % Percent slope = rise ÷ run × 100. Calculate Reset Results Pitch & Slope Pitch (x:12): – Angle: – Percent slope: – Rise : Run: – Rafter & Height Run used: – Rise used: – Rafter length: – Total rafter incl. overhang: – What is roof pitch? Roof pitch describes how steep a roof is. In North America it is usually written as rise in inches per 12 inches of run , for example 6:12 . The higher the first number, the steeper the roof. Roof pitch can be expressed in several equivalent ways: Pitch (x:12) – e.g. 4:12, 6:12, 12:12 Angle in degrees – angle between roof surface and horizontal Percent slope – rise ÷ run × 100 Rise.