Calculator Inputs and Outputs
Inputs
- Ramp length (ft) — example: 12
- Ramp width (ft) — example: 4
- Ramp rise (in) — example: 18
- Waste allowance (%) — example: 10
- Concrete price per cubic yard — example: 160
Results
- Concrete required (yd³)
- Concrete volume (ft³)
- Estimated concrete cost
Formula used
A straight wedge-shaped ramp uses average depth equal to half the rise; volume is then increased for waste.
How to Use the Concrete Ramp Calculator
Enter the requested values, confirm the units and assumptions, then select Calculate Concrete Ramp. The default inputs provide a complete working example, and the supporting outputs help you verify the primary result.
Formula
A straight wedge-shaped ramp uses average depth equal to half the rise; volume is then increased for waste.
Understanding the Results
The primary answer appears first, followed by useful supporting values, conversions, or comparisons. Calculations retain additional internal precision before displayed values are rounded.
Accuracy Tips
- Use consistent units and measured values.
- Review whether the assumptions match your situation.
- For estimates, include realistic waste, fees, efficiency, timing, or contingency values where provided.
Important Note
This calculator is for informational estimation. Verify critical financial, health, construction, scientific, tax, legal, or safety decisions with an appropriately qualified professional.
Calculation Standards
This tool uses documented formulas and high-precision internal values. Displayed results may be rounded for readability. Review the assumptions and verify important decisions with a qualified professional.
Read our calculation methodology