Concrete Slab Calculator
Enter slab dimensions to estimate concrete volume in cubic meters and cubic yards.
Use 5?10% to account for overage and spillage.
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How concrete volume is calculated
Slab volume is calculated by multiplying length ? width ? thickness. Inputs are converted to meters for consistent volume output.
A waste allowance is added to account for over-excavation, spillage, and finishing losses.
Use the cubic yard value if your supplier quotes concrete in yd?.