1. What is Slope Ratio?

Slope Ratio represents the steepness of a ramp or incline, expressed as the ratio of vertical rise to horizontal run. It is commonly used in construction, accessibility design, and engineering to ensure proper incline for various applications.

2. How Does the Calculator Work?

The calculator uses the slope ratio formula:

Where:

• \( \text{rise} \) — Vertical change (height difference)
• \( \text{run} \) — Horizontal change (length)

Explanation: The ratio expresses how many units of vertical rise occur per unit of horizontal run.

3. Importance of Slope Ratio Calculation

Details: Calculating slope ratio is essential for designing accessible ramps (typically 1:12 ratio for ADA compliance), road construction, drainage systems, and various engineering applications where proper incline is critical for safety and functionality.

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 the standard slope ratio for wheelchair ramps?
A: The ADA recommends a maximum slope ratio of 1:12 (1 unit rise per 12 units run) for wheelchair accessibility.

Q2: How do I convert slope ratio to percentage?
A: Multiply the ratio by 100. For example, a 1:12 ratio equals approximately 8.33% slope.

Q3: What's the difference between slope ratio and slope angle?
A: Slope ratio is a simple ratio (rise:run), while slope angle is measured in degrees from horizontal.

Q4: Can slope ratio be greater than 1?
A: Yes, when the vertical rise exceeds the horizontal run, resulting in a steep incline.

Q5: What are common applications of slope ratio calculations?
A: Ramp design, road construction, roof pitch, drainage systems, and accessibility planning.