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Ramp Calculator

Calculate ramp length and slope angle from rise height and slope ratio.

Formula v1.0.0GlobalMethodologyramp-v1
How this is calculated
Run = Rise × slope ratio; Ramp length = √(run² + rise²)

About this calculator

The ramp calculator computes the run and total sloped length of a ramp from a given rise height and slope ratio (e.g. the standard 1:12 ADA-compliant ratio), along with the resulting slope angle in degrees.

Worked example

2ft rise at a 1:12 slope

Result: Ramp length ≈ 24.08 ft

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