This gravel calculator turns an area and depth into tons for a bulk delivery, cubic yards, or the number of bags — with costs. No sign-up. The working is shown under every number.
Quick example: a 10 × 10 ft area at 3 in deep needs 1.5 tons of gravel ($67.50 in bulk) or 55 bags ($275.00) at the example prices.
| Item | Buy | Cost |
|---|---|---|
| Estimated total | $0.00 |
The two lines are alternatives — buy one or the other, not both. One cubic yard of gravel weighs about 1.4 tons (2,800 lb).
Estimate only — not a guarantee. Mistakes are possible, so always check the quantities with your supplier or a builder before you buy or build.
At 3 in deep, this calculator works out 1.5 tons for a 10 × 10 ft area, including 10% extra because gravel compacts down and spreads. At the example bulk price of $45 per ton, that is $67.50.
The same 10 × 10 ft area at 3 in deep takes 55 bags of 0.5 cu ft gravel, at $275.00 at the example bag price of $5. The calculator lists bulk tons and bags as alternatives — buy one or the other, not both.
In this calculator's results, 1.0 ton covers a 10 × 10 ft area at 2 in deep, including the 10% extra for compaction. The calculator converts volume to weight at 1.4 tons per cubic yard, the figure shown in its shopping list working.
Gravel compacts down underfoot and spreads at the edges, so a delivered load covers a little less than the raw volume maths suggests. The calculator adds 10% first, then rounds bulk orders up to the nearest 0.5 ton.
| Area and depth | Tons (bulk) | Bulk cost | Bags | Bag cost |
|---|---|---|---|---|
| 10 × 10 ft, 2 in deep | 1.0 tons | $45.00 | 37 | $185.00 |
| 10 × 10 ft, 3 in deep | 1.5 tons | $67.50 | 55 | $275.00 |
| 20 × 10 ft, 4 in deep | 4.0 tons | $180.00 | 147 | $735.00 |
All figures include the calculator's 10% extra for compaction and spreading, and costs use the example prices above. Bulk and bags are alternatives — buy one, not both.
These figures are planning estimates only — not a guarantee and not professional advice. Mistakes are possible, including through an error in this calculator. Always check the quantities, sizes, spacings and depths with your supplier, a licensed builder, and your local building code before you buy materials or start work. The owner of this site accepts no responsibility or liability for any loss, cost, damage, injury, wasted material or failed inspection that results from using these estimates. Prices are examples to start from, not live prices or quotes.