Slope Calculator
The slope, percent grade and angle of a line through two points.
Result
Slope (m)
0.750
Grade (%)
75.0
Angle (°)
36.87
How it works
m = (y₂ − y₁) ÷ (x₂ − x₁)
Slope is the steepness of a line: rise over run. It can be shown as a ratio, a percent grade (common for roads) or an angle in degrees.
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Frequently asked questions
What is percent grade?
The slope times 100 — a 10% grade rises 10 units for every 100 travelled horizontally.
What if the line is vertical?
A vertical line has an undefined slope; here it is shown as a 90° angle.
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