Construction and Engineering
Ramp Calculator
Ramp Calculator calculate ramp horizontal run, sloped length, angle, and grade from rise and a declared run-to-rise ratio.
Construction and Engineering
Ramp Calculator
Calculate ramp horizontal run, sloped length, angle, and grade from rise and a declared run-to-rise ratio.
Formula
Run = rise*ratio; ramp length = sqrt(run^2+rise^2); grade = rise/run*100.
About the Ramp Calculator
Calculate ramp horizontal run, sloped length, angle, and grade from rise and a declared run-to-rise ratio.
How the Ramp Calculator Works
The ratio sets horizontal run per unit rise, then right-triangle geometry gives sloped length and angle.
Formula
Run = rise*ratio; ramp length = sqrt(run^2+rise^2); grade = rise/run*100.
The calculation runs in your browser. Values are validated for required ranges, compatible units, and method-specific restrictions before results are displayed.
Required Inputs
- Vertical rise (required) - enter in in.
- Run per 1 unit rise (required).
Results Reported
The result panel reports the final answer and the intermediate quantities needed to check the calculation:
- Horizontal run (in)
- Sloped ramp length (in)
- Grade (%)
- Ramp angle (degrees)
Ramp Calculator Example
Select Example Data in the calculator to load this reproducible input set:
| Input | Example value |
|---|---|
| Vertical rise | 24 in |
| Run per 1 unit rise | 12 |
How to Use the Calculator
- Confirm that the calculator title and formula match the quantity you need.
- Enter every required value using the unit shown with its field.
- Select Example Data to inspect a valid input set, or enter your own values and select Calculate.
- Review all reported values and the displayed formula before using the answer.
- Use Copy Result or Download CSV when you need a reusable record.
Accuracy and Limitations
Accessibility and building requirements differ by location and ramp use. Landings, handrails, clearances, maximum rises, and field tolerances require current code review.
Keep units consistent, use measurements that represent the actual situation, retain full precision during the calculation, and round only the final answer. Professional decisions may require current official rules, field measurements, laboratory methods, or specialist review.
Frequently Asked Questions
What does the Ramp Calculator calculate?
Calculate ramp horizontal run, sloped length, angle, and grade from rise and a declared run-to-rise ratio.
Which formula does the Ramp Calculator use?
Run = rise*ratio; ramp length = sqrt(run^2+rise^2); grade = rise/run*100.
What should I verify before using this result?
Accessibility and building requirements differ by location and ramp use. Landings, handrails, clearances, maximum rises, and field tolerances require current code review.