Ramp Calculator

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Calculates ramp length and other parameters based on the rise and desired slope for accessibility.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Rise (Vertical Height) in Inches and Desired Slope in the units shown.

Step 2

Read Slope Percentage, Ramp Length in Inches, and Ramp Length in Feet in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

See the inputs and their calculated results.

Rise (Vertical Height) in Inches: 12; Desired Slope: 1:12 (ADA Compliant)

Slope Percentage: 8.33 %; Ramp Length in Inches: 144 inches; Ramp Length in Feet: 12 feet

Rise (Vertical Height) in Inches: 6; Desired Slope: 1:10

Slope Percentage: 10 %; Ramp Length in Inches: 60 inches; Ramp Length in Feet: 5 feet

Rise (Vertical Height) in Inches: 4; Desired Slope: 1:8

Slope Percentage: 12.5 %; Ramp Length in Inches: 32 inches; Ramp Length in Feet: 2.666666667 feet

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