Gravel Calculator: Tons & Cubic Yards

Estimate gravel in cubic yards and tons for driveways, paths and drainage beds.

✓ Formula shown✓ No signupUpdated 2026-10-22
Before you buy

Most people under-order. Add the waste allowance shown above, and buy one extra bag or box for touch-ups. Compare current prices for gravel:

Shop gravel →

Affiliate link: we may earn a commission at no extra cost to you. It doesn't change our numbers.

Worked examples
AreaCubic yardsTons @1.4
20×10 ft, 4"2.47 yd³3.46 tons
50×12 ft, 4"7.41 yd³10.37 tons
100×10 ft, 6"18.52 yd³25.93 tons
10×10 ft, 3"0.93 yd³1.3 tons
How the calculation works (sources & assumptions)

Cubic yards = L × W × (depth ÷ 12) ÷ 27; tons = yd³ × density. Typical densities run 1.2–1.5 tons per yd³ depending on stone type and moisture. Ask your quarry for their figure.

FAQ

How much gravel for a driveway?

A typical 4–6" layer: a 50×12 ft driveway at 4" needs about 7.4 yd³ (≈10.4 tons).

How much does a ton of gravel cover?

At 2" depth, about 115–140 sq ft per ton depending on density.

Other calculators