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Gravel Calculator

Cubic yards and tons of gravel or crushed stone for a driveway, path or base layer.

How it's calculated

Cubic yards = length × width × depth (in) ÷ 12 ÷ 27. Tons = cubic yards × the material's weight per cubic yard. Gravel is typically 1.3–1.5 tons per cubic yard; 1.4 is the default. Your supplier's figure for their material is the one to use.

Example

A 50 × 10 ft driveway, 4 inches deep: 6.17 cubic yards × 1.4 = 8.6 tons.

Typical weights (vary by supplier and moisture)

MaterialTons per yd³
Pea gravel1.3–1.4
Crushed stone / #571.3–1.5
Crusher run / road base1.4–1.6
River rock1.3–1.4
Sand (dry)1.3–1.4
Topsoil1.0–1.3

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