Gravel Calculator
Calculate gravel quantity for driveways and landscaping.
50 mm is a typical decorative gravel depth
Gravel needed
2.25 tonnes
1.5 m³ · 1.96 yd³
Volume (m³)
1.5
Volume (yd³)
1.96
Tonnes (approx)
2.25
Weight assumes ~1.5 tonnes per m³. Density varies by stone type — ask your supplier if unsure.
In-depth explanation
Estimate gravel volume and weight from area and depth. Weight uses a typical bulk density of about 1.5 tonnes per m³. Everything runs locally in your browser — your inputs are not uploaded to produce the result.
Decorative paths are often ~40–50 mm; drive bases need more — check your project. Stone density and moisture vary. Suppliers can refine the tonnage for your product.
Calculate sub-base depth separately if your build needs one. Tweak the inputs above to compare options, then copy or note the result you need.
Volume from area and depth, then weight from a typical bulk density around 1.5 tonnes per m³. Wet gravel and different stone sizes move that number. Suppliers will quote their product.
Decorative layers are shallow; structural bases are thicker and often a different grade. Calculate sub-base separately. Compaction reduces finished thickness — buy a little extra.
Frequently asked questions
How deep should gravel be?
Decorative paths are often ~40–50 mm; drive bases need more — check your project.
Why is weight approximate?
Stone density and moisture vary. Suppliers can refine the tonnage for your product.
Does this include a sub-base?
No — calculate sub-base depth separately if your build needs one.
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