This ramp gradient reference table shows the gradient for a range of rise (height) values, assuming a run (horizontal length) of 12 m. Every figure is computed with the same engine that powers our Ramp Gradient Calculator, so the numbers are exact.
| Rise (height) | Gradient | Ratio (1 in X) |
|---|---|---|
| 0.25 m | 2.08% | 48.00 |
| 0.5 m | 4.17% | 24.00 |
| 0.75 m | 6.25% | 16.00 |
| 1 m | 8.33% | 12.00 |
| 1.5 m | 12.50% | 8.00 |
| 2 m | 16.67% | 6.00 |
| 3 m | 25.00% | 4.00 |
| 5 m | 41.67% | 2.40 |
| 7 m | 58.33% | 1.71 |
| 10 m | 83.33% | 1.20 |
How to use this table
Find the row closest to your rise (height) and read across to the gradient. For a value between two rows, the real figure sits between them — or enter your exact numbers in the Ramp Gradient Calculator for a precise answer.
Need a value that is not in the table? — the Ramp Gradient Calculator does it instantly, for free, with the formula and a worked example built in.
Related calculators
Continue exploring construction calculators with these tools: Carpet Calculator, Roof Shingle Bundles Calculator, Mortar Bags Calculator, Concrete Bags Calculator, Siding Calculator.