Gravel volume and tonnage calculator UK
Estimate aggregate volume and mass using a supplier’s bulk density. Check the formula, worked example and limits before using your own figures.
Enter your figures
Estimated gravel mass
Inputs changed. Select Calculate result to update your estimate.
Use your actual figures. Any prefilled price, fee, rate or return is an editable illustration, not a current product quote. Density is an editable example, not a universal gravel value. Compaction, product grading and delivery units should be checked with the supplier.
How the gravel volume and tonnage calculator uk works
Volume = length × width × depth/1,000 × allowance; tonnes = volume × bulk density.
Data basis: mathematical formula using your inputs. Example prices and rates are illustrative, not current market quotes.
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Worked example: gravel volume and tonnage
This illustration uses the calculator’s example inputs. It is not a quote or a recommended financial decision.
- Area length (m)
- 5
- Area width (m)
- 3
- Layer depth (mm)
- 50
- Supplier bulk density (tonnes per m³)
- 1.6
- Chosen additional volume (%)
- 5
Estimated gravel mass: 1.26 tonnes
Volume = length × width × depth/1,000 × allowance; tonnes = volume × bulk density.
Gravel volume and tonnage: questions answered
What does the gravel volume and tonnage calculation include?
Volume = length × width × depth/1,000 × allowance; tonnes = volume × bulk density. Use your actual figures. Any prefilled price, fee, rate or return is an editable illustration, not a current product quote. Density is an editable example, not a universal gravel value. Compaction, product grading and delivery units should be checked with the supplier.
Using your result
Example inputs are a starting point. Replace them with your figures and select Calculate result. Results are rounded for display; calculations use unrounded values.
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