Concrete slab calculator
Calculate concrete for a rectangular slab, pad or floor.
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Your measurements
Enter your project values. Your estimate updates as you type.
View your estimateExample values are a starting point. Check product yields and specifications before ordering.
YOUR ESTIMATE
Material to order
2.64m³
Measured volume2.4 m³
Waste allowance0.24 m³
Footprint24 m²
Calculated from your measurements.
How it's calculated
Volume = length × width × depth × quantity. Order volume = volume × (1 + waste ÷ 100).
Calculations use consistent units for your selected measurements. The waste allowance is applied once to the measured requirement. Whole purchase quantities are rounded up.
What this estimate includes
Measure finished pour dimensions. The waste allowance is editable and is not a prescribed slab thickness.
QUIKRETE product yieldsQuantity and arithmetic estimates only. Use project specifications for installation and design requirements.
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