1. What is a Car Ramp Slope Ratio Calculator?

Definition: This calculator determines the slope ratio of a car ramp based on its length and the height difference it needs to overcome.

Purpose: It helps vehicle owners, mechanics, and construction professionals design safe and functional car ramps.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( R \) — Slope ratio (unitless, expressed as 1:R)
• \( L \) — Ramp length (feet)
• \( H \) — Height difference (feet)

Explanation: The ratio represents how many units of length are needed for each unit of height.

3. Importance of Ramp Slope Calculation

Details: Proper slope ensures vehicle safety, prevents scraping, and meets accessibility standards. Typical ratios range from 1:6 (steep) to 1:10 (gentle).

4. Using the Calculator

Tips: Enter the ramp length and height difference in feet. Both values must be > 0. The result is expressed as a ratio (1:X).

5. Frequently Asked Questions (FAQ)

Q1: What's a safe slope ratio for car ramps?
A: For most vehicles, 1:8 to 1:10 is recommended. Low-clearance vehicles may need 1:12 or gentler.

Q2: How does this relate to angle or percentage?
A: Slope ratio is different from angle or percentage grade, though they all describe incline. Ratio is simplest for construction.

Q3: When would I use a steeper ratio?
A: Steeper ratios (1:6) may be used for temporary ramps or when space is limited, but require careful vehicle operation.

Q4: Does this work for wheelchair ramps?
A: The calculation is similar, but wheelchair ramps typically require gentler slopes (1:12 minimum for ADA compliance).

Q5: How do I measure height difference?
A: Measure vertically from the lower surface to where the ramp meets the upper surface.