m³ = m² × thickness. For example, 20 m² at 0.10 m thickness is 2 m³.
Square metres to cubic metres
Surface area
for example, a room floor
Enter an area greater than zero.
Enter the surface area to be covered. For example, for a 40 m² floor screed, enter 40 and select m².
Layer thickness
Enter a thickness greater than zero.
Enter the layer thickness in the selected unit. For example, 5 cm = 0.05 m, so 40 m² × 5 cm = 2 m³.
Quick material presets:
Material volume
—m³
The result is calculated using
V = A × h, where A is the area in m² and h is the thickness in metres. The calculator also shows litres, cost, waste allowance and estimated weight.Cost estimate
$ / m³
Select $ / m³ when the supplier quotes a price per cubic metre. Select $ / m² when the material is sold by area.
More results
Waste allowance
A waste allowance covers cuts, offcuts and measurement errors. Typical starting points are about 10% for screed, 8% for boards, and 15–20% for sand or soil.
Material weight
Weight is calculated using
mass = volume × density. Use the density stated in the material specifications whenever possible.
Calculation history 0
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Material volume
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Formula
Volume m³ = area m² × thickness in meters. Without thickness, square meters cannot become cubic meters.