Cubic Meters to Tonnes
Convert cubic metres to metric tonnes based on material density.
Formula
tonnes = m³ × density (t/m³)
- Water: 1 t/m³; Concrete: 2.4 t/m³; Sand: 1.6 t/m³; Steel: 7.85 t/m³.
Cubic Meters to Tonnes Example
Inputs
- Cubic Metres: 10 m³
- Density: 1.6 t/m³
10 m³ × 1.6 t/m³ = 16 tonnes (sand)
Frequently asked questions
How do I use the Cubic Meters to Tonnes Converter?
Enter the volume in cubic meters and the material density in tonnes per cubic meter. The calculator multiplies them to give total weight in metric tonnes.
Why does density matter?
Different materials have different densities. Water is 1 t/m³, concrete is ~2.4 t/m³, sand is ~1.6 t/m³, and steel is ~7.85 t/m³.
What if I don't know the density?
Common densities are shown in the formula notes. You can also research your material's density and enter it in the density field.
Can I verify this manually?
Yes — multiply cubic meters by density. For example, 10 m³ × 1.6 t/m³ = 16 tonnes.