The roof pitch calculator calculates rise, run, slope, pitch, angle, and rafter length. Use the diagrams on this page when referring to the Input section and to interpret the calculated Results.

This roof pitch calculator is a handy tool that will help you quickly assess the pitch of your roof and what length rafters you need for your construction works.

You can use this roof pitch calculator chart to quickly estimate surface area manually. Multiply your flat footprint by the multiplier to get the true roof area.

The Roof Pitch Calculator makes it easy to calculate your roof pitch in seconds. Simply enter the roof run and rise, and get the rafter length, roof pitch in degrees, and roof pitch as a percentage.

Free roof pitch calculator to determine roof slope, angle in degrees, pitch ratio, and percentage. Calculate roof pitch instantly with our easy-to-use tool.

Comprehensive roof pitch chart with common pitches, angles, percentages & applications. Use our calculator and guide to choose the right roof slope.

Free roof pitch calculator to convert between degrees, ratios & percentages instantly. Calculate roof slope and pitch multiplier with installation recommendations.