Roof Angle Calculator
Calculate roof angle from rise and run.
Calculator
Result
About this calculator
Calculate roof angle from rise and run. Use the result as a planning estimate. Actual architectural, construction, lighting and building requirements can vary by project conditions, materials, local codes and professional specifications.
How to use this calculator
What to enter
Enter or select the following as requested: Rise (m); Horizontal run (m). Follow the units, valid ranges, examples, and options displayed beside each field.
What the result means
The geometric result is derived from the dimensions, coordinates, or angles entered and the shape or relationship named by the calculator. Confirm that lengths use consistent units, angles use the selected degree/radian setting, and the points or dimensions satisfy the required geometric conditions.
When to use it
Use this to solve a geometry or trigonometry problem or check a design measurement. Verify units and assumptions before using the result for construction, surveying, or other precision work.