Calculator Inputs
ft
ft
in
%
$
Results
26.67 cu ft
Volume
29.34 yd³
Cubic Yards Needed
1321 bags
80 lb Bags
1761 bags
60 lb Bags
$4,401.00
Estimated Cost
About This Calculator
Calculate concrete volume for slabs, footings, and columns. Get estimates in cubic yards and pre-mixed bag counts so you order the right amount.
Common Thicknesses
- 4 inches — Standard patio, walkway, shed slab
- 6 inches — Driveway for cars and light trucks
- 8+ inches — Heavy vehicle areas, garage floors
Frequently Asked Questions
How many 80 lb bags of concrete per yard?
Approximately 45 eighty-pound bags make one cubic yard of concrete. A single 80 lb bag yields about 0.6 cubic feet.
How thick should a concrete patio be?
A standard concrete patio should be at least 4 inches thick. If you plan to place heavy items (hot tub, outdoor kitchen), go with 6 inches.