How Concrete Bag Quantities Are Calculated
The calculator determines project volume in cubic feet, adds the selected waste allowance, and divides by the approximate yield of the selected bag size.
Approximate Bag Yields
| Bag size | Approximate yield |
|---|---|
| 50 lb | 0.375 cubic feet |
| 60 lb | 0.45 cubic feet |
| 80 lb | 0.60 cubic feet |
Confirm the yield printed on the product bag before purchasing.
Calculation Standards
This tool uses documented formulas and high-precision internal values. Displayed results may be rounded for readability. Review the assumptions and verify important decisions with a qualified professional.
Read our calculation methodology