Concrete Volume Calculator
Concrete volume for a slab, footing or column in cubic yards and cubic metres, with a realistic waste factor and bag counts from published yields.
Concrete Volume Calculator
Volume, plus the part most calculators leave out: waste. Ordering the theoretical volume is how you end up short at the far end of a pour.
——
| Theoretical volume | — |
|---|---|
| With waste | — |
| 60 lb bags (0.45 ft³ each) | — |
| 80 lb bags (0.60 ft³ each) | — |
Bag yields are Quikrete's published figures (Technical Data Sheet #1101): an 80 lb bag yields 0.60 ft³, a 60 lb bag 0.45 ft³ — 45 and 60 bags per cubic yard. Other brands vary; check the bag. Conversions: 1 yd³ = 27 ft³, 1 ft³ = 0.0283168 m³.