1. What is a Slope of Ramp Calculator?

Definition: This calculator determines the slope percentage of a ramp based on its height and length.

Purpose: It helps architects, builders, and accessibility planners ensure ramps meet required slope standards.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( S \) — Slope percentage (%)
• \( H \) — Height (vertical rise) in feet
• \( L \) — Length (horizontal run) in feet

Explanation: The height is divided by the length to get the slope ratio, then multiplied by 100 to convert to percentage.

3. Importance of Ramp Slope Calculation

Details: Proper slope calculation ensures ramps are safe, accessible, and compliant with building codes (typically 1:12 slope or 8.33% for ADA compliance).

4. Using the Calculator

Tips: Enter the vertical height and horizontal length in feet. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is the maximum slope for an ADA compliant ramp?
A: The maximum slope is 8.33% (1:12 ratio) for commercial ramps.

Q2: How do I measure height and length?
A: Height is vertical rise from ground to top of ramp. Length is horizontal distance the ramp covers.

Q3: What slope is too steep for a wheelchair ramp?
A: Generally, slopes steeper than 10% become difficult for wheelchair users.

Q4: Does this calculation account for landings?
A: No, landings should be calculated separately and added to the total ramp length.

Q5: How does slope percentage relate to degrees?
A: Slope percentage is not the same as degrees. 100% slope equals 45 degrees.