Concrete mix planning
Concrete Bag Calculator
Estimate the concrete volume for your slab, walkway, footing, or patio and see approximate 60-pound and 80-pound bag counts.
Quick reference: One cubic yard is approximately 45 bags of 80-pound mix or 60 bags of 60-pound mix. Product yield varies, so verify the bag label.
Calculate Your Concrete Bags
Enter the length, width, and thickness of your project in the concrete calculator. It calculates cubic yards and bag estimates from the volume.
Concrete Bag Reference
| Bag size | Approximate bags per cubic yard | Best practice |
|---|---|---|
| 40 lb | About 90 | Verify the package yield |
| 60 lb | About 60 | Round up to a whole bag |
| 80 lb | About 45 | Round up and allow overage |
Ordering Tips
- Use the yield printed on the exact mix you plan to buy.
- Round bag counts up because partial bags are impractical.
- Plan labor and mixing time for large bag quantities.
- For large pours, compare bagged mix with ready-mix delivery.
FAQ
A cubic yard takes about 45 bags of 80-pound concrete mix. Always check the yield printed on the product bag.
A cubic yard takes about 60 bags of 60-pound concrete mix based on common bag yields.
Yes. Add about 10 percent to cover waste, uneven forms, and small measurement differences.
No. Bag yield varies by product and mix. Use the manufacturer yield when available.