Concrete driveway calculator
Estimate materials for your driveway.
Driveways carry vehicle loads, so they're poured thicker and on a deeper gravel base than a patio. Enter your dimensions to size both.
Enter your dimensions
National average is $150–$200 per cubic yard, delivered — edit it to match your local supplier.
Results
- Volume needed
- —
- Recommended order
- —
- Gravel base (5″)
- —
- Estimated cost
- —
Bagged mix alternative
- 40 lb bags—
- 60 lb bags—
- 80 lb bags—
Bag counts include your waste % and round up to whole bags.
Estimates only — confirm thickness, base depth and reinforcement requirements with your local code or contractor.
Built for vehicle loads
Thicker slab, deeper base.
The defaults above start at 5 inches of concrete over 5 inches of compacted gravel — heavier than a walkway or patio needs, because a driveway takes repeated vehicle weight. Adjust either number if your vehicles, soil, or local code call for something different.
FAQ
Common questions
How thick should a concrete driveway be?
5 inches is standard for passenger vehicles. Go to 6 inches or more if you expect heavier vehicles like RVs or delivery trucks. Local codes sometimes set a minimum — check before you pour.
How deep should the gravel base be for a driveway?
4–6 inches of compacted gravel is typical, more than a patio needs, because a driveway carries repeated vehicle loads and benefits from extra drainage and support. Adjust the gravel depth in the calculator to match your soil and local practice.
Does a driveway need rebar?
Most residential driveways use fiber-reinforced concrete or wire mesh; rebar is more common for heavier-duty driveways, poor soil conditions, or where local code requires it. Check with a local contractor if you're unsure what your soil and climate call for.
How much does a concrete driveway cost?
Materials cost scales directly with area and thickness — a 20×20 ft driveway at 5 inches thick uses roughly 6 cubic yards of concrete. Enter your own dimensions above for a materials-only estimate; labor, forms, and finishing add to the total.
Building something else?