Gravel Calculator

Estimate gravel volume in cubic yards — and the approximate weight in tons.

How to measure depth

Measure the finished depth you want after raking level (and after compaction, for driveways). For weed suppression under the gravel, plan the fabric separately — it doesn’t change the volume.

How we calculated it

We compute your volume in cubic feet (length × width × depth), convert to cubic yards — the unit gravel is sold in — and estimate tonnage using a typical density for your material. Suppliers sell by the yard or by the ton, so we show both.

Things that can change your result

Density varies by material: pea gravel, crushed stone, and river rock all weigh differently per yard.
Driveways and paths compact — plan your depth after compaction, and add a base layer if starting from dirt.
Depth is usually 2–3″ for decorative cover, 4″+ for driveways (often in two lifts).

Buying tips

Ask your supplier for their exact tons-per-yard figure and update the density setting.
Delivered gravel gets dumped in one spot — have the wheelbarrow route planned.
Order a quarter-yard extra for touch-up; thin spots show fast.

Common mistakes

Ordering by weight from a volume estimate without checking the material’s density.
Skimping on driveway depth — 2″ of gravel on soil disappears into the mud in one season.
Forgetting edging — gravel without a border migrates.

Frequently asked questions

How many square feet does a ton of gravel cover?

At 2 inches deep, roughly 100 square feet per ton for typical crushed gravel — less for deeper coverage.

Do I order by the yard or by the ton?

Either — suppliers convert with their material’s density. Get their tons-per-yard figure and this calculator’s tonnage will line up with their quote.

How deep should a gravel driveway be?

A minimum of 4 inches of compacted gravel over a stable base; new driveways over soil often use 6–8 inches in two or three layers.