Drainage Gravel Calculator
Estimate drainage gravel for trenches, soakaways and backfill zones.
Drainage gravel for a 2m by 1.5m area at 40mm
For an area measuring 2 metres by 1.5 metres at 40mm deep, this estimate includes drainage aggregate volume and tonnage using the default density below.
- Volume0.12 m³
- Approx tonnage0.19 tonnes
- Including wastage0.21 tonnes
Results - Drainage Gravel Calculator
- Volume0.12 m³
- Approx tonnage0.19 tonnes
- Including wastage0.21 tonnes
How this drainage gravel calculator works
It converts trench or soakaway dimensions into a volume, then into tonnage using a practical drainage aggregate density.
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