#57 Stone Calculator
#57 stone is a 3/4-inch washed crushed stone used for driveways, drainage and as a concrete aggregate. It runs about 1.4 tons per cubic yard. Enter the area and depth to get cubic yards and tons.
Your measurements
ft
ft
in
#57 Stone needed
6.91 tons
≈ 4.94 yd³
Estimates only. Verify against your supplier's coverage figures before ordering.
Footprint
Footprint to scale
Coverage
- Surface area
- 400 ft²
The formula
Tons = (Length ft × Width ft × (Depth in ÷ 12) ÷ 27) × 1.4 tons/yd³
Example: A 40 ft × 10 ft driveway at 4 in deep = 4.94 yd³ ≈ 6.9 tons of #57 stone.
How it works
- 1Calculate the volume in cubic yards (area × depth ÷ 27).
- 2Multiply by ~1.4 to convert cubic yards to tons for #57 stone.
- 3Suppliers usually sell by the ton, so order by weight.
Frequently asked questions
How much does #57 stone cover?
At 2 inches deep, one cubic yard of #57 stone covers about 160 square feet; at 4 inches it covers about 80 square feet. Because #57 weighs roughly 1.4 tons per yard, a ton covers a little less than a yard.