Concrete Bag Coverage Chart
Updated
A 40-lb bag of concrete yields about 0.30 cubic feet, a 60-lb bag about 0.45 cubic feet, and an 80-lb bag about 0.60 cubic feet. It takes roughly 90, 60, and 45 bags respectively to make one cubic yard (27 cubic feet).
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Yield per bag
- 40 lb bag ≈ 0.30 ft³ (≈ 90 bags per yard)
- 50 lb bag ≈ 0.375 ft³ (≈ 72 bags per yard)
- 60 lb bag ≈ 0.45 ft³ (≈ 60 bags per yard)
- 80 lb bag ≈ 0.60 ft³ (≈ 45 bags per yard)
How to use the chart
Calculate your project volume in cubic feet, then divide by the yield of the bag size you plan to buy. Round up and add a couple of bags for waste.