Wheelchair Ramp Slope Calculator
Calculate the required ramp length, slope percentage, and angle for wheelchair accessibility based on ADA guidelines. Enter the vertical rise and choose the desired slope ratio to ensure compliance.
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How to use this tool?
- 1 Enter the requested data in the fields above carefully.
- 2 Click the calculate button to process the information instantly.
- 3 Analyze the detailed result and the formula explanation presented below.
- 4 You can print, share, or even embed the calculator on your own site for free.
Unlike traditional static calculators, our tools adapt to specific user needs. They include detailed explanations of the formulas used, ensuring transparency in results. Furthermore, our design is focused on user experience, eliminating distractions and focusing on what really matters: your data and conclusions.
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Frequently Asked Questions
The ADA recommends a maximum slope of 1:12 for commercial ramps, meaning for every inch of rise, you need at least 12 inches of ramp length.
Multiply the rise (in inches) by the slope ratio denominator and divide by 12 to get the ramp length in feet. For example, a 24-inch rise with a 1:12 ratio requires a 24-foot ramp.
Slope percentage is the rise divided by the run multiplied by 100. For a 1:12 ramp, slope percentage is approximately 8.33%.
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