Gravel Driveway Calculator
The Gravel Driveway Calculator estimates the volume and weight of crushed stone needed for a gravel driveway base or surface layer.
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How This Tool Works
Enter your driveway's length, width, and depth to calculate cubic yards and estimated tons of gravel to order.
Formula & Method
Volume (cubic feet) = length × width × (depth in inches ÷ 12). Cubic yards = cubic feet ÷ 27. Tons ≈ cubic yards × 1.4.
Example Calculation
A 12×50 ft driveway (600 sq ft) at 4 inches deep needs about 7.4 cubic yards, or roughly 10.4 tons of gravel.
Frequently Asked Questions
How deep should a gravel driveway be?+
A typical gravel driveway uses 4–6 inches of base material, sometimes with an additional top layer of smaller decorative stone.
What type of gravel is best for driveways?+
Crushed stone (like crusher run or road base) compacts better than smooth river rock and provides a more stable driving surface.
How often does gravel need to be replenished?+
Most gravel driveways need a top-up layer every 1–3 years depending on traffic and weather, as stones gradually shift and settle.
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