Gravel Calculator

Enter the area and depth. Gravel is ordered by the cubic yard or by the ton, so we show both. Weight depends on the rock — use your supplier’s figure if you have it.

Formula

Cubic yards = length × width × depth (in) ÷ 12 ÷ 27. Tons = cubic yards × density.

About the density setting

Crushed stone and pea gravel commonly weigh somewhere around 1.3–1.5 tons per cubic yard, but it varies with rock type and moisture. Your quarry or landscape supplier will tell you the exact figure for the product they sell — enter it to get an accurate ton count.

Typical depths

Walkways: 2–3 in
Driveways: often built in layers (larger base stone under a finer top layer) — ask a local supplier for the right build-up.

Frequently asked questions

How much area does a ton of gravel cover?

At 1.4 tons per cu yd and 3 in deep, one ton covers about 77 sq ft. Change the inputs to match your rock.

Sources

NIST — U.S. customary volume conversions

Last reviewed 2026-10-14. Estimates only — get written quotes from licensed local contractors before you decide.