1. What is Ramp Slope?

Ramp slope is the measure of steepness or incline of a ramp, calculated as the ratio of vertical rise to horizontal run. It's essential for accessibility, construction, and safety compliance.

2. How Does the Calculator Work?

The calculator uses the fundamental slope formula:

Where:

• \( Rise \) — Vertical height difference (meters)
• \( Run \) — Horizontal distance (meters)

Explanation: The slope can be expressed as a ratio (e.g., 1:12) or as a percentage (e.g., 8.33%). A 1:12 slope means 1 unit of rise for every 12 units of run.

3. Importance of Slope Calculation

Details: Proper slope calculation is crucial for wheelchair accessibility, building code compliance, drainage design, and ensuring safe ramp construction. The ADA recommends maximum slopes of 1:12 for wheelchair ramps.

4. Using the Calculator

Tips: Enter rise and run values in meters. Select whether you want the result as a ratio or percentage. Both values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is the maximum slope for wheelchair ramps?
A: The ADA recommends a maximum slope of 1:12 (8.33%) for wheelchair ramps. Steeper slopes may require handrails and are less accessible.

Q2: How do I convert slope ratio to percentage?
A: Multiply the slope ratio by 100. For example, 1:12 slope = (1/12) × 100 = 8.33%.

Q3: What's the difference between slope and gradient?
A: Slope typically refers to the ratio of rise to run, while gradient is usually expressed as a percentage. They represent the same concept but in different formats.

Q4: Can this calculator be used for road grades?
A: Yes, the same formula applies to road grades, where slope is often expressed as a percentage (e.g., 6% grade).

Q5: What are common slope ratios in construction?
A: Common ratios include 1:12 (wheelchair ramps), 1:20 (gentle slopes), 1:4 (stairs), and 2:1 (steep embankments).