Concrete Calculator

Estimate concrete volume, bags needed, and costs for slabs, footings, curbs, and stairs.

Length (l) (m)

Width (w) (m)

Thickness (h) (cm)

Quantity (m)

Safety Margin / Waste5%

0%5%10%15%20%25%

Enter the dimensions on the left to calculate.

Tip: Always double-check your measurements and consult a structural engineer for large projects.

Note: The symbol ≈ indicates an approximate conversion. Values showing 0.00 are smaller than our display precision but not zero.

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