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Mulch & Topsoil Calculator

Calculate how much mulch or topsoil you need for your landscaping project. Get results in cubic meters and bags.

Area Dimensions

Area Length*

m

Area Width*

m

Depth*

cm

Typical: 5-10 cm for mulch, 15-30 cm for topsoil

Cost per Cubic Meter (Optional)

$

Leave blank to skip cost estimate

Ready to Calculate

Enter your dimensions on the left to get started

Volume Calculation

Mulch and topsoil are sold by volume (cubic yards or meters):

Calculate area (length × width)
Convert depth to matching units (inches to feet, or cm to m)
Multiply area × depth to get cubic feet/meters
Volume is already in cubic meters