Concrete driveway calculator
Start with the thickness, then enter the length and width. The results give you cubic yards and truck counts. Enter a price and the concrete cost appears as well.
Concrete for common driveway sizes
| Driveway | 4 in (yd³) | 5 in (yd³) | 6 in (yd³) | Trucks at 6 in |
|---|---|---|---|---|
| Single, 10 x 20 ft | 2.72 | 3.40 | 4.07 | 1 |
| Single, 12 x 24 ft | 3.91 | 4.89 | 5.87 | 1 |
| Single, 12 x 40 ft | 6.52 | 8.15 | 9.78 | 1 |
| Single, 12 x 60 ft | 9.78 | 12.22 | 14.67 | 2 |
| Double, 20 x 20 ft | 5.43 | 6.79 | 8.15 | 1 |
| Double, 24 x 24 ft | 7.82 | 9.78 | 11.73 | 2 |
| Double, 20 x 40 ft | 10.86 | 13.58 | 16.30 | 2 |
| Double, 24 x 50 ft | 16.30 | 20.37 | 24.44 | 3 |
The figures include 10% extra. Each truck holds about 10 cubic yards.
How deep does a concrete driveway need to be?
Concrete Network gives 4 in as the minimum. It recommends 5 to 6 in for garage floors and heavy-duty driveways. Going from 4 in to 5 in, it says, raises how much a driveway can carry by nearly 50%; citing the Tennessee Concrete Association, it also suggests making the edges 1 or 2 in thicker (Concrete Network).
On a 12 by 24 ft driveway, each extra inch of thickness calls for about 1 cubic yard more concrete, with 10% extra included. Going with 6 in rather than 4 in usually adds a part load, not a second truck.