Rise Over Run to Percent Slope Calculator
Convert rise over run to percent slope (grade). Free online slope percentage calculator.
How to Convert Rise Over Run to Percent Slope
Percent slope (grade) is the rise divided by the run, multiplied by 100.
Slope % = (Rise / Run) × 100
For example, a road that rises 5 meters over 100 meters of horizontal distance:
Example: Rise = 3, Run = 12. What is the slope?
(3 ÷ 12) × 100 = 25%