Landscape Materials Calculator

Estimate the mulch, soil, gravel, sand, or road base volume you need, with indicative weight and ordering equivalents.

Free to use Instant results Australian metric units

Length (metres) Please enter a valid length

Width (metres) Please enter a valid width

Material Type

Depth

Please enter a valid depth

Editable presets only — confirm the required depth for your project

0.00 m³

Total Volume

0.00

Estimated Weight (tonnes)

20 kg equivalents

1 m³ bulk-bag equivalents

Volume: Length × Width × Depth (converted to metres). For circles: π × radius² × depth. For triangles: ½ × base × height × depth.

Weight: Volume × the selected indicative density. Confirm the exact product conversion with the supplier; see Methodology & Sources.

20 kg equivalent: Estimated kilograms ÷ 20, rounded up. This is a mass comparison, not a retail pack count.

1 m³ bulk-bag equivalent: Volume ÷ 1.0, rounded up. Confirm the supplier's actual bulk-bag size.

Calculation Resources

Check the assumptions behind the results or compare indicative weight for one cubic metre:

Every formula and indicative density is published on the methodology page.

Designed for phones as well as larger screens, with shareable calculation links.

Copy your calculations or share a link with your client or supplier.