Ramp Calculators
Calculate ramp length, slope ratio, and landing dimensions for accessibility projects. These calculators help you plan wheelchair ramps and access ramps that meet ADA requirements. Enter your height change and get the minimum ramp length, slope percentage, and landing sizes needed for a compliant build. The ADA standard slope is 1:12, meaning 1 inch of rise for every 12 inches of run. A 24-inch rise requires at least 24 feet of ramp. Intermediate landings are required every 30 feet of horizontal run and at any turn. These calculators apply those rules automatically so you can size the ramp correctly before buying lumber or concrete.
-
Ramp Calculator
Calculate ramp length, slope ratio, and material needs for any height change.
-
Wheelchair Ramp Slope Calculator
Calculate ADA-compliant wheelchair ramp slope, length, and landing requirements.
When to use these calculators
- You're building an access ramp and need to calculate the correct length for a given height change.
- You're planning an ADA-compliant wheelchair ramp and need slope ratio and landing dimensions.
- You're verifying that an existing ramp meets ADA slope requirements before an inspection.
- You're planning a multi-section ramp with turns and need landing dimensions at each change of direction.