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Concrete Calculator
Calculate concrete volume for a rectangular slab or footing from length, width, and thickness, including waste allowance and cost per cubic meter.
- Volume including waste
- 2.64 m³
- Net volume
- 2.4 m³
- Cost
- 264
How the calculation works
Volume V = length × width × thickness/100. Order volume = V × (1 + waste/100). Enter thickness in centimeters and other dimensions in meters.
Inputs
- Length, m
- Width, m
- Thickness, cm
- Waste, %
- Price per m³
Calculation details
A 6 × 4 m slab, 10 cm thick, requires 2.4 m³. A 10% allowance increases the order to 2.64 m³. Calculate sections with different thicknesses separately.
This estimates material quantity. It does not select concrete strength, reinforcement, or structural load capacity. Enter a price from your supplier.
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Updated: 2026-10-02