Plan a safe wheelchair or access ramp in seconds. Enter the vertical rise and choose a slope ratio to get the required horizontal run, the ramp surface length and the gradient angle — based on widely used accessibility guidance.
How to Use
- Measure the vertical rise from the lower to the upper level and choose the unit.
- Pick a slope ratio — 1:12 is the widely used accessible standard.
- Press Calculate ramp.
- Use the run, surface length and angle to plan materials and space.
Key Features
- Accessibility ratios — 1:12, 1:16 and 1:20 slope options.
- Full dimensions — run, surface length and gradient angle.
- Metric and imperial — results in metres and feet.
- 100% private — runs entirely in your browser; nothing is sent or stored.
FAQs
What does 1:12 mean?
For every 1 unit of vertical rise, the ramp needs 12 units of horizontal run. It is the maximum slope in much accessibility guidance.
Do I need landings?
Usually yes — level landings are recommended at the top and bottom of a ramp and on long runs. Check your local regulations.
Is this a substitute for professional advice?
No. This tool gives planning guidance only; structural work should follow local building codes and professional advice.
Is my data sent anywhere?
No. Everything runs entirely in your browser and never transmits or saves your entries.
Related Tools
Try these related tools: Stair Calculator, Concrete Calculator, Roof Calculator.