Ramp Slope Calculator
Construction
Calculate ramp slope with explicit inputs and a worked example.
Formula
grade = rise / run × 100; length = √(rise² + run²)
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
- Geometry only; does not certify accessibility or code compliance.
Example Calculation
Example inputs
- Rise: 0.5 m
- Horizontal run: 10 m
A 0.5 m rise over 10 m horizontal run is a 5% grade.
Frequently asked questions
How do I use this calculator?
Enter rise, horizontal run. The result updates automatically. Use Reset to restore the example values.
What method does it use?
grade = rise / run × 100; length = √(rise² + run²). Geometry only; does not certify accessibility or code compliance.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.