How Many Bags of Concrete in a Yard?
There are about 45 of the 80-pound bags, 60 of the 60-pound bags, or 90 of the 40-pound bags in one cubic yard of concrete. This is because one cubic yard is 27 cubic feet, and an 80-pound bag yields about 0.6 cubic feet. The table below shows each bag size, and the calculator converts your yardage to bags.
| Bag size | Yield per bag | Bags per yard |
|---|---|---|
| 40 lb | 0.30 cu ft | 90 |
| 50 lb | 0.375 cu ft | 72 |
| 60 lb | 0.45 cu ft | 60 |
| 80 lb | 0.60 cu ft | 45 |
Get your exact number
Calculate your exact amount with the concrete bags calculatorHow Do You Convert Yards of Concrete to Bags?
To convert cubic yards of concrete to bags, multiply the yards by 27 to get cubic feet, then divide by the yield of your bag size. For 80-pound bags yielding 0.6 cubic feet: one yard is 27 cubic feet, divided by 0.6 is 45 bags. For half a yard, that is about 23 bags. The math shows why bags suit small jobs only: a single yard means hauling and mixing 45 heavy bags.
When Should You Use Bags Instead of Ready-Mix?
Use bagged concrete for small jobs under about half a cubic yard: fence posts, small pads, repairs and setting equipment. Beyond that, the bag count climbs fast (45 bags per yard), and ready-mix delivery becomes cheaper, faster and more consistent. The break-even is usually around 1 cubic yard. The calculator shows your bag count so you can judge when to switch to delivery.
Related answers
Frequently asked questions
- How many 80 lb bags of concrete in a yard?
- About 45 of the 80-pound bags make one cubic yard, since each yields about 0.6 cubic feet and a yard is 27 cubic feet.
- How many 60 lb bags of concrete in a yard?
- About 60 of the 60-pound bags make one cubic yard.
- When should I use ready-mix instead of bags?
- For jobs over about half a cubic yard. Beyond that, the bag count climbs fast and delivery is cheaper and easier.