How to use it
- Enter the area.
- Enter the depth.
- Pick the stone type; crusher run is denser because its fines fill the voids.
The formula
Cubic yards = area × depth ÷ 27
Tons = cubic yards × density (1.35 for #57, 1.5 for crusher run)
Worked example
| Length | 20 ft |
| Width | 10 ft |
| Depth | 4 in |
| Material | Crushed stone #57 — 1.35 t/yd³ |
| State (for price) | U.S. average |
| Extra for settling / compaction | 5 % |
Result
| Cubic yards | 2.59 yd³ |
| Tons | 3.5 short tons |
| Cubic feet | 70 ft³ |
| Cubic meters | 1.98 m³ |
| Area covered | 200 ft² |
| Estimated material cost | $35–$175 |
Tips before you order
- #57 stone (about ¾–1 in) drains well and is the usual choice behind retaining walls and under pavers' base.
- Crusher run compacts hard and is best for driveway and patio bases.
See typical gravel prices for every state on the gravel prices by state page.
Questions
How many tons of #57 stone in a yard?
About 1.35 tons per cubic yard, though it varies by quarry and moisture.
Why do tons and yards give different answers at the yard?
Suppliers sell by weight (tons) or by volume (cubic yards). The conversion depends on the material's density and moisture — wet material weighs more per yard. Ask your supplier which unit they price in.