BuildCalc

Concrete Driveway Calculator

Estimate the concrete for a driveway. Enter the driveway length, width and slab thickness — driveways that carry vehicles are usually 5–6 inches — and the calculator returns the cubic yards and an estimated ready-mix cost.

Concrete for the driveway
—

    How it works

    Cubic yards = length × width × (thickness ÷ 12) ÷ 27, plus waste. Cost = cubic yards × your price per cubic yard. Driveways are typically poured 5–6 inches thick over a compacted gravel base.

    Frequently asked questions

    How thick should a concrete driveway be?

    A residential driveway is usually 5 inches thick, or 6 inches where heavier vehicles park. A well-compacted 4–6 in gravel base under the slab matters as much as the thickness.

    How much concrete for a 2-car driveway?

    A typical 20 × 20 ft two-car driveway at 5 in is about 6.2 cubic yards. Enter your exact dimensions above for a precise figure with waste included.

    How much does a concrete driveway cost?

    Material alone follows the yards × price-per-yard here; finished driveways cost more once forming, labor, base and finishing are added. Use this for the concrete quantity and material cost.

    Related calculators

    Concrete Cost CalculatorConcreteAsphalt Driveway CalculatorAsphaltGravel CalculatorLandscaping

    All concrete calculators

    Estimates are for planning only. Material yields, densities and code requirements vary — confirm quantities with your supplier and local building code before ordering.