1. What is the Ramp Slope Angle?

The ramp slope angle is the angle between the ramp surface and the horizontal plane. It is a critical measurement in construction, accessibility design, and engineering to ensure safe and functional ramp installations.

2. How Does the Calculator Work?

The calculator uses the trigonometric formula:

Where:

• \( A \) — Ramp angle in degrees
• \( R \) — Vertical rise
• \( L \) — Horizontal run

Explanation: The arctangent function calculates the angle whose tangent is the ratio of rise to run.

3. Importance of Ramp Angle Calculation

Details: Proper ramp angle calculation is essential for ADA compliance, wheelchair accessibility, and ensuring safe usage for all individuals. Steep ramps can be dangerous while overly shallow ramps may be impractical.

4. Using the Calculator

Tips: Enter the vertical rise and horizontal run in consistent units (both in meters, feet, etc.). Both values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is the maximum recommended ramp angle?
A: For wheelchair accessibility, the ADA recommends a maximum slope of 1:12 (approximately 4.76 degrees).

Q2: How do I convert slope ratio to degrees?
A: Use the formula: angle = arctan(rise/run). This calculator performs that conversion automatically.

Q3: What units should I use for rise and run?
A: Use any consistent units (meters, feet, inches) as long as both measurements are in the same units.

Q4: Can this calculator handle decimal inputs?
A: Yes, the calculator accepts decimal values for precise calculations.

Q5: What if my run measurement is zero?
A: The run cannot be zero as it would result in division by zero. Please enter a positive value for run.