1. What is the Ramp Length Formula?

The ramp length formula calculates the hypotenuse of a right triangle using the Pythagorean theorem. It determines the actual length of a ramp based on its vertical rise and horizontal run, providing the diagonal distance along the ramp surface.

2. How Does the Calculator Work?

The calculator uses the Pythagorean theorem:

Where:

• \( Length \) — Ramp length hypotenuse (m)
• \( Rise \) — Vertical height (m)
• \( Run \) — Horizontal distance (m)

Explanation: The formula calculates the diagonal length of a ramp, which is essential for construction, accessibility planning, and slope determination.

3. Importance of Ramp Length Calculation

Details: Accurate ramp length calculation is crucial for wheelchair accessibility compliance, construction planning, safety standards, and determining proper slope ratios according to building codes.

4. Using the Calculator

Tips: Enter rise and run values in meters. Both values must be positive numbers. The calculator will compute the ramp length (hypotenuse) automatically.

5. Frequently Asked Questions (FAQ)

Q1: What is the maximum slope for wheelchair ramps?
A: According to ADA standards, the maximum slope for wheelchair ramps is 1:12 (8.33%), meaning 1 unit of rise per 12 units of run.

Q2: How do I convert between different units?
A: Ensure consistent units. If using feet instead of meters, convert all measurements to the same unit system before calculation.

Q3: What if I only know the slope ratio?
A: If you know the slope ratio (e.g., 1:12) and the rise, multiply the rise by the second number in the ratio to get the run, then calculate length.

Q4: Are there minimum width requirements for ramps?
A: Yes, ADA requires a minimum clear width of 36 inches (91.5 cm) for wheelchair ramps.

Q5: When are landing platforms required?
A: Landings are required every 30 feet (9 meters) of ramp length, at the top and bottom, and where the ramp changes direction.