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Ski Slope Angle & Steepness Calculator

Angle = atan(rise/run) — convert gradient to degrees.

Calculates ski slope angle (degrees), gradient (%), and vertical drop from slope length and rise, plus estimated descent time at a given speed.

Daniel Oh By Daniel Oh
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

angle = atan(rise/run)×180/π; gradient% = rise/run×100

In depth

Calculates ski slope angle (degrees), gradient (%), and vertical drop from slope length and rise, plus estimated descent time at a given speed.