1. What is Slope Ratio?

Slope ratio represents the steepness of a ramp or incline, calculated as the ratio of vertical change (rise) to horizontal change (run). It's commonly used in construction, automotive applications, and accessibility planning to determine appropriate incline angles.

2. How Does the Calculator Work?

The calculator uses the slope ratio formula:

Where:

• \( \text{rise} \) — Vertical change (in units like meters or feet)
• \( \text{run} \) — Horizontal change (in units like meters or feet)

Explanation: The slope ratio provides a dimensionless value that indicates how steep the ramp is. A higher ratio indicates a steeper incline.

3. Importance of Slope Ratio Calculation

Details: Accurate slope ratio calculation is crucial for ensuring vehicle ramp safety, determining accessibility compliance, and planning construction projects with proper incline specifications.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What is a typical slope ratio for car ramps?
A: For vehicle ramps, a slope ratio of 1:12 to 1:8 is common, depending on the application and local building codes.

Q2: How does slope ratio relate to angle?
A: The angle can be calculated using the arctangent function: angle = arctan(rise/run). The slope ratio is the tangent of the angle.

Q3: What units should I use for rise and run?
A: Use consistent units (both in meters, both in feet, etc.). The calculator will provide a unitless ratio result.

Q4: Can this calculator handle decimal inputs?
A: Yes, the calculator accepts decimal values for both rise and run measurements.

Q5: What's the maximum recommended slope ratio for accessibility?
A: For wheelchair accessibility, the maximum recommended slope ratio is typically 1:12 (approximately 4.8 degrees).