Gravel calculator
Ordering gravel for a driveway or path? This gravel calculator turns your area and depth into cubic yards — plus an estimated weight in tons, since many suppliers sell by the ton.
Gravel calculator FAQ
How do I calculate how much gravel I need?
Multiply area by depth in feet for cubic feet, then divide by 27. A 200 sq ft driveway at 3 inches deep needs about 1.85 cubic yards.
How many tons are in a cubic yard of gravel?
Roughly 1.4 tons, though it varies with stone type and moisture — the value this gravel calculator uses. Suppliers selling by weight will confirm the exact conversion.
How deep should a gravel driveway be?
3–4 inches over a compacted base is typical for residential driveways; garden paths can be 2–3 inches.
Should I order extra gravel?
Adding 5–10% covers compaction and uneven ground — freshly laid gravel settles noticeably.
Does the type of gravel change the amount?
The volume math is the same, but weight per yard differs between crushed stone, pea gravel, and river rock — always check tons with your supplier.