HOW IT IS CALCULATED
Estimate concrete for a rectangular pour
Calculate concrete volume from length, width and thickness, then add a waste allowance.
Instant resultClear formulaRuns locally
01Values
02length × width × depth × (1 + waste)
03Result
5 × 3 × 0.15 m = 2.25 m³ before waste
Small thickness changes can strongly affect volume
Thickness is multiplied across the entire surface, so even a few extra centimeters can require substantially more concrete.
02
In short
What logic does the calculator use?
length × width × depth × (1 + waste)
Example?
5 × 3 × 0.15 m = 2.25 m³ before waste