🪨 Gravel Calculator
Enter the length, width and depth. You get cubic yards and an estimated weight in tons.
How the Gravel Calculator works
Volume is area × depth. Weight depends on the material: typical gravel weighs about 1.4 tons per cubic yard (roughly 2,800 lb), with most between 1.3 and 1.5. Ask your supplier for their exact figure.
Step-by-step calculation
- 1Measure length, width and depth.
- 2Convert to cubic yards.
- 3Multiply by density for tons.
Worked example
A 20 × 10 ft area 4 inches deep is 66.67 ft³ = 2.47 cubic yards, about 3.46 tons at 1.4 tons per yard.
Gravel Calculator examples
| Length (ft) | Gravel needed |
|---|---|
| 10 | 1.73 tons |
| 15 | 2.59 tons |
| 20 | 3.46 tons |
| 25 | 4.32 tons |
| 30 | 5.19 tons |
Other inputs kept at the calculator's default values. Results calculated by this calculator.
Why use a Gravel Calculator?
Order gravel or stone by the ton correctly.
Important factors that can affect your results
- Material density varies.
- Compaction.
- Base layer depth.
Frequently asked questions
How deep should a gravel driveway be?
Often 4–6 inches of top gravel over a compacted base, deeper on soft ground.
Why do suppliers sell by the ton?
Material is weighed on a truck scale, and density varies by stone type and moisture.
Related calculators
Last reviewed November 2026 · How we build and check our tools · Report a problem