Gravel Calculator
Estimate gravel for a driveway, path, or drainage bed — in cubic yards and in tons.
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How it works
Calculate the volume in cubic yards from length, width, and depth, then convert to tons using an approximate density of 1.4 tons per cubic yard. A 2–3 inch depth is typical for a top layer.
Formula
Cubic yards = (L × W × Depth in ft) ÷ 27 · Tons ≈ cubic yards × 1.4
Frequently asked questions
How many tons of gravel are in a cubic yard?
Roughly 1.4 tons per cubic yard for typical crushed gravel, though this varies by stone type and moisture.
How deep should gravel be for a driveway?
Plan for about 4–6 inches total for a driveway, often built in layers of different stone sizes.
How much area does a ton of gravel cover?
One ton of gravel covers roughly 100 square feet at 2 inches deep.