Gravel Tonnage Calculator
Calculate bulk gravel volume and approximate tonnes.
Gravel needed for a 3m by 1.2m area at 40mm deep
For a gravel area measuring 3 metres by 1.2 metres at a depth of 40mm, you will need approximately 0.25 tonnes including the default wastage allowance and density shown below.
- Volume0.14 m³
- Approx tonnage0.23 tonnes
- Including wastage0.25 tonnes
Results - Gravel Tonnage Calculator
- Volume0.14 m³
- Approx tonnage0.23 tonnes
- Including wastage0.25 tonnes
Gravel tonnage notes
Different aggregates have different densities. The default of one point six tonnes per cubic metre is a common estimate for decorative gravel and general aggregate.
Popular sizes
These gravel presets focus on common path, border and driveway dimensions so visitors can jump straight to a realistic tonnage estimate.
Most gravel searches are driven by practical project sizes like paths, borders and parking bays. Using a bank of pre-filled pages such as 2m × 1m × 40mm, 2m × 1m × 50mm, 2m × 1.2m × 40mm, 2m × 1m × 75mm helps capture those searches without creating junk combinations.