Road Gradient Calculator

Inputs

Results update as you type.

Start point
m
m
End point
m
m
Design check
Road profileRL 100 mRL 107 m250 mGrade 2.6% up · max 8%myconstructioncalculator.comNot to scale
Diagram updates as you type.

Results

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Road gradient (uphill)
2.60%
Ratio1 in 38.5
Angle1.49 °
mm per metre26.0 mm/m
Rise / fall6.500 m
Horizontal length250.00 m
Length needed at 8.0%81.3 m OK
Price This optional: add your own prices

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Working
  1. Rise = 106.500 m − 100.000 m = 6.500 m; length = 250.00 m − 0.00 m = 250.00 m
  2. Gradient = rise ÷ length × 100 = 2.600%
  3. At most 8.0%, the level change needs at least 81.3 m of road

Results are estimates for planning and material ordering only. They are not a substitute for structural design or approval by a qualified engineer. Read the full disclaimer.

Road Gradient Calculator byMy Construction Calculator: free construction calculators with the working shown.