Roof Pitch to Angle and Gradient Converter & Ramp Pitch Calculator
Convert between Pitch, Angle and Percent Grade.
Enter Pitch, Angle or Grade and hit appropriate button to re-draw diagram and convert.
Roof Pitch is described as Rise in Run, typically the Rise in a Run of 12 units.
in 12 = 26.57°
° = 6 : 12
% Grade (slope)
Enter Base length to calculate Rise and Diagonal for current Pitch Angle.
Select Inches to enter decimal inches or Millimeters for Metric.
Visit this page using a Phone or Tablet to directly measure pitch and angles. With a mobile device, a button will appear.
Tap the button to start measuring and lay your device on an angle (roof) to measure pitch and angle and animate the diagram.
While measuring, tap the button to hear the spoken angle results continuously as the angle changes.
To fine tune Slider Controls click to select and use ◄► (cursor) keyboard keys.
Your iPad, iPhone or Android Tablet or Phone is a valuable On-Site tool!
Lay your phone or tablet on an angled surface (roof ?) to directly measure angles and automatically calculate Roofing and Pitch Angle Apps.
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ALWAYS CHECK WITH YOUR LOCAL BUILDING AUTHORITY BEFORE LAYING OUT OR BUILDING ANYTHING AND FOLLOW ALL LOCAL CODES. VERIFY ALL DIMENSIONS AND ANGLES BEFORE CONSTRUCTION.
All calculators on this site are GEOMETRIC only. Check loacl regulations for sizes, spacings and all engineering requirements.