Slope & Angle Calculator
Result
Angle (degrees)26.5650511771
Slope (rise/run)0.5
Percent grade50
Horizontal distance10
Vertical distance5
↗ Math
Slope & Angle Calculator — free online calculator.
Formula
angle = arctan(rise/run); percent grade = (rise/run) × 100
- Slope & Angle Calculator calculates its result from Rise (vertical change), Run (horizontal distance). It uses the formula angle = arctan(rise/run); percent grade = (rise/run) × 100. Change any input to recalculate the result instantly.
- The main inputs are Rise, Run (horizontal distance). Enter them in the units and format shown in the calculator.
- Keep comparable quantities in compatible units whenever the formula combines or compares them.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Slope & Angle
Inputs
- Rise: 5 vertical change
- Run (horizontal distance): 10
For rise 5 and run 10: slope 0.5, angle ≈ 26.5651°, percent grade = 50%.
Sample result: Calculating…
Frequently asked questions
What does the Slope & Angle calculate?
Slope & Angle Calculator — free online calculator.
Which values should I enter?
Enter Rise, Run (horizontal distance) using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: angle = arctan(rise/run); percent grade = (rise/run) × 100.
Why might my result differ from another source?
Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.