Concrete Bags to Cubic Feet Calculator
Concrete Yield: 80 lb bag = 0.60 cu ft | 60 lb bag = 0.45 cu ft
Example: A 4x4 ft slab that is 4 inches deep requires exactly 8 bags of 80 lb concrete.
Slab Dimensions
Required Bags
Total Volume 5.3 cubic feet
80 lb bags 9 bags
60 lb bags 12 bags
40 lb bags 18 bags