Aggregate quantity calculator
Gravel Calculator UK
Work out how much gravel, decorative stone or aggregate you need for a path, driveway, border or landscaping area.
Use supplier data where available
Aggregate density and bulk-bag capacity vary, so both are editable. If your supplier gives a tonnes-per-bag figure, use that figure for a better order estimate.
Depth matters: loose and compacted depths are different for some groundworks materials. Follow the product guidance.