Gravel Driveway Calculator
A gravel driveway needs its area × depth in feet ÷ 27 for cubic yards, then × 1.4 tons per yard. Enter your driveway size and depth to get tons, cubic yards, and cost.
How to estimate driveway gravel
Multiply the length × width × depth, all in feet, and divide by 27 for cubic yards, then multiply by about 1.4 to get tons — the unit suppliers deliver in. The calculator handles the inch-to-foot depth conversion for you.
How deep and how many layers
A durable gravel driveway is 4–6 inches of compacted stone, usually built in two lifts: a coarse crushed base topped with a finer driving surface. Deeper bases suit clay or frequently used drives.
Other surfaces
Prefer a paved finish? Compare the asphalt calculator for hot-mix tonnage. For general landscaping stone, use the gravel calculator.
Frequently asked
How much gravel do I need for a driveway?
Multiply length × width × depth in feet, divide by 27 for cubic yards, then multiply by 1.4 for tons. A 40×10 ft driveway at 4 inches deep needs about 6.9 tons.
How deep should a gravel driveway be?
Build to 4–6 inches of compacted stone, often in two layers — a coarse base and a finer top. Soft or clay soils need a deeper base.
How much does a gravel driveway cost?
Gravel itself runs roughly $15–$40 per ton delivered. This calculator estimates the material; grading and a base fabric are extra.