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.

Feb 24, 2025 · After measuring the slope, estimate the roof pitch by dividing the slope by 2 if you have a simple gable roof. However, if you have a more complex roof, you may need to …

If you have given the roof’s angle in degrees, you can find the pitch of roof by converting the angle in degrees to a slope, then determining the rise by multiplying the slope by 12 or by using this …

Aug 12, 2024 · Calculate roof pitch of new builds by estimating the roof’s vertical height and dividing it by half of the horizontal width. Roof pitch measures a roof’s vertical rise against its …

Mar 28, 2025 · Our comprehensive guide helps you determine roof slope using the standard roof pitch formula. Learn how to measure roof angle, understand pitch ratios, and ensure accurate …

Jul 18, 2025 · Measure the total rise of the roof from the roof ridge to the center of the span. ... Measure the rafter run, the horizontal distance of a single rafter. ... Divide the rise by the run to …

Oct 10, 2025 · The roof pitch formula is essential for builders, homeowners, and roofers to determine slope, materials, and structural needs. This article explains the most common …

Sep 15, 2025 · This article details how to calculate roof pitch using standard formulas, explains common terms, and discusses practical applications to ensure accuracy and efficiency.

Roof pitch is often expressed as a ratio between rise and run in the form of x:12. For example, a pitch 1:12 means that per every twelve yards of building length the rise will be equal to one yard.

Nov 10, 2025 · Pitch: P = 12 r / x. Fast for US residential work where pitch is standard vernacular.