In this wheelchair ramp slope calculator, ramp length is the hypotenuse, but for stairs, it will be the stringer length, and for roofing - the rafter length. Alternatively, you can find the slope using inverse (arc) functions:

Use our ramp calculator to work out the required ramp length, run and slope for any commercial or private ramp in a variety of units.

Any part of an accessible route with a slope greater than 1:20 shall be considered a ramp and shall comply with 4.8. The least possible slope shall be used for any ramp. The maximum slope of a ramp in new construction shall be 1:12. The maximum rise for any run shall be 30 in (760 mm).

A ramp is comprised of horizontal sloped runs connected by level landings between runs. Any slope greater than 1:20 and less than 1:12 along an accessible route shall be considered a ramp that is required to comply with ADA accessibility codes and compliances.

Mar 10, 2025 · Enter the horizontal and vertical lengths of a slope to determine the slope gradient and slope length. The following formulas are used to calculate slope gradient and slope length, respectively. A ramp slope is defined as the gradient or ratio of the height to the length of a ramp.

Our slope ramp calculator will perform the calculations required to design a ramp. By using the results of the tool, you can easily construct a ramp that will allow you to push a wheelchair a few steps higher.

5 days ago · How is ADA ramp slope calculated? ADA ramp slope is calculated by dividing the vertical rise by the horizontal run, then multiplying by 100 to get a percentage. The formula is: Slope (%) = (Rise ÷ Run) × 100. A compliant slope must be ≤ 8.33%. For example: 6" rise requires 72" run (6/72×100=8.33%). Are there exceptions to the 1:12 slope rule?

Welcome to the ADA Ramp Slope Calculator! This tool helps you determine whether a ramp meets the Americans with Disabilities Act (ADA) slope requirements. Simply enter the rise and run of your ramp to calculate the slope ratio and see if it’s compliant with ADA standards. Select your preferred units (Inches or Centimeters).

Dec 5, 2024 · Calculate ramp slope, gradient, and length with the Ramp Slope Calculator. Perfect for wheelchair ramps, vehicle ramps, and construction projects to ensure safety and compliance.

When designing a ramp for wheelchair access, you need to calculate the slope accurately to ensure safety and compliance with accessibility standards. By using a slope calculator, you can input the height and distance of the ramp to get the …