Gravel Calculator
Mass = area × depth in meters × bulk density
Estimate gravel mass from area, depth, and an entered bulk density.
Formula
Mass = area × depth in meters × bulk density
Worked example
Area: 20 m²
Depth: 50 mm
Bulk density: 1600 kg/m³
With these inputs, the result is 1,600 kg.
How to use this calculator
- Identify the quantity you want to calculate.
- Enter your measurements in the units shown on each field.
- Read the result, which updates as you change the inputs.
- Check the assumptions below before applying the result.
Assumptions and limits
Material density, moisture, and compaction affect the estimate. Confirm the supplier’s density.
Precision and checking
Results are rounded for display. Use the most accurate measurements available, and avoid rounding your inputs unnecessarily. Extra decimal places in a result do not make an estimate more reliable.
To check a result, substitute the same input values into the formula shown above. Change one value at a time to understand how the quantity responds.
Frequently asked questions
What assumptions does this calculation use?
Material density, moisture, and compaction affect the estimate. Confirm the supplier’s density.
Are my inputs sent to a server?
No. The calculation runs locally in your browser. The result updates as you edit the inputs.
