What is Ramp & Road Grade Calculator?
Calculates Slope (m) based on Rise (y) and Run (x).
How it Works
Slope = (y2 - y1) / (x2 - x1).
Step-by-Step Guide
- 1 Rise
- Vertical height difference.
- 2 Run
- Horizontal distance.
- 3 Calc
- Slope ratio and percentage.
Example
Input: Rise 1m, Run 12m
Result: 8.3% (1:12)
FAQ
What is 1:12?
For every 1 unit of height, you need 12 units of length.
Undefined slope?
A vertical line (division by zero).
Zero slope?
A perfectly flat horizontal line.
Grade vs Angle?
Grade is percentage (Rise/Run*100); Angle is degrees.
Driveway max?
Ideally under 15% to avoid bottoming out cars.
Conclusion
Crucial for ADA compliance. A 1:12 slope (8.3%) is the maximum safe angle for wheelchair ramps.