Home Back

Car Ramp Slope Calculator

Car Ramp Slope Formula:

\[ S = \arctan\left(\frac{R}{L}\right) \times \frac{180}{\pi} \]

inches
inches

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is Car Ramp Slope Calculation?

Car ramp slope calculation determines the angle of inclination of a ramp based on its vertical rise and horizontal run. This is essential for ensuring safe vehicle access and compliance with accessibility standards.

2. How Does the Calculator Work?

The calculator uses the slope angle formula:

\[ S = \arctan\left(\frac{R}{L}\right) \times \frac{180}{\pi} \]

Where:

Explanation: The formula calculates the angle whose tangent is the ratio of rise to run, then converts from radians to degrees.

3. Importance of Ramp Slope Calculation

Details: Proper ramp slope is crucial for vehicle safety, preventing bottoming out, ensuring adequate clearance, and meeting building code requirements for accessible design.

4. Using the Calculator

Tips: Enter the vertical rise and horizontal run in inches. Both values must be positive numbers. The calculator will compute the slope angle in degrees.

5. Frequently Asked Questions (FAQ)

Q1: What is the maximum recommended slope for car ramps?
A: For most vehicles, a slope of 15-20 degrees is maximum. Lower slopes (10-15 degrees) are recommended for low-clearance vehicles.

Q2: How does slope affect vehicle clearance?
A: Steeper slopes increase the risk of the vehicle's underside scraping on the ramp during ascent or descent.

Q3: Can this calculator be used for other types of ramps?
A: Yes, the same formula applies to any ramp slope calculation, though recommended angles may vary by application.

Q4: What's the difference between slope ratio and slope angle?
A: Slope ratio (R:L) describes the steepness as a ratio, while slope angle gives the inclination in degrees.

Q5: How accurate is this calculation?
A: The calculation is mathematically precise. Accuracy depends on the precision of your rise and run measurements.

Car Ramp Slope Calculator© - All Rights Reserved 2025