Measure the pour area
Use finished dimensions for length and width. For irregular areas, split the project into smaller rectangles.
Concrete calculator
Driveway Concrete Calculator
Plan concrete volume for driveway slabs with fast yard and bag estimates.
Estimated concrete needed4.89 yd³ with 10% waste
- Cubic feet
- 120.00 ft³
- Cubic meters
- 3.40 m³
- 80 lb bags
- 200
- 60 lb bags
- 267
- 40 lb bags
- 400
How to use it
Enter slab thickness
Most patios and walkways use 4 inches. Driveways and load-bearing work may need more.
Order with waste
Use the 10% waste recommendation to cover spillage, uneven subgrade, and small measurement errors.
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FAQ
Concrete estimating questions
How thick should a concrete driveway be?
Many residential driveways use at least 4 inches, but heavier vehicles, poor soil, or local code can require more.
Should I use ready-mix for a driveway?
Most driveways are large enough that ready-mix delivery is more practical than mixing individual bags.
Does the calculator include waste?
The main result shows exact volume and a separate recommended order quantity with 10% waste.