How many 80 lb bags make one cubic yard?
An 80 lb bag yields about 0.60 cubic feet. Since one cubic yard is 27 cubic feet, it takes about 45 bags before waste and about 50 bags with a 10% allowance.
Free concrete calculator
Concrete Bag Calculator
Estimate how many 40 lb, 60 lb, or 80 lb bags of concrete you need, including waste, bag cost, and equivalent cubic yards.
Estimate62 bags needed
- Bag cost
- $403
- Concrete volume
- 36.7 cu ft
- Equivalent cubic yards
- 1.36 cu yd
- Bag yield used
- 0.6 cu ft per 80 lb bag
Estimating Notes
- Bagged concrete is convenient below about one cubic yard; above that, ready-mix usually wins on labor and price.
- One 80 lb bag yields roughly 0.60 cubic feet, so a full cubic yard takes about 45 bags before waste.
- For pours over 50 bags, price a ready-mix short load before committing to DIY bags.
Calculator FAQs
Are 60 lb or 80 lb concrete bags better?
80 lb bags reduce the number of bags you need, but 60 lb bags are easier to lift and mix. The best choice is usually the largest bag you can safely handle repeatedly.