15 Cubic Yards of #57 Stone in Tons
15 cubic yards of #57 stone in tons works out to about 20.2 tons using a planning weight of 1.35 tons per yard. Real loads land between roughly 19.5 and 21.8 tons depending on stone size, fines and moisture. That is about 40,500 pounds.
Volume and tonnage calculator →The conversion
- Yards × tons per yard: 15 × 1.35 = 20.2 tons.
- Low end: 15 × 1.3 = 19.5 tons.
- High end: 15 × 1.45 = 21.8 tons.
Quarries can tell you the weight per yard for their own product; use it if you have it.
What 15 yards covers
| Depth | Square feet |
|---|---|
| 2 in | 2,430 |
| 3 in | 1,620 |
| 4 in | 1,215 |
| 6 in | 810 |
About #57 stone
Since #57 is washed and open-graded, it moves a little underfoot. Many installers put it over a compacted base of a dense-graded stone rather than straight on soil.
Hauling 15 yards
Plan the delivery around 20.2 tons: two or more trucks in most areas. A pickup is a poor fit for anything past a fraction of a yard; see how much gravel a half-ton pickup can carry.
Before you order
- Confirm whether the yard prices #57 stone by the ton or by the yard.
- Add about 10 percent for compaction and uneven ground.
- Clear a firm spot for the truck to dump.
The volume and tonnage calculator converts any area and depth into yards and tons.
Where #57 stone fits
Works well for:
- French drains and drainage layers
- The top course of a gravel driveway
- Under sheds where water needs to drain away
Poor fit for:
- A standalone base, since it does not pack hard without fines
- Paver setting beds
- Walk paths meant for strollers or wheelchairs
Quick reference numbers
- Per inch over 100 sq ft: about 0.42 tons of #57 stone (0.31 cubic yards).
- Per inch over 1,000 sq ft: about 4.2 tons.
- Another size for comparison: a 12x24 area at 4 inches takes about 4.8 tons.
- Weight used here: about 1.35 tons per cubic yard.
Where estimates go wrong
- Mixing up cubic yards and tons. Yards are volume, tons are weight; convert with the product’s weight per yard.
- Ordering exactly the math. Uneven ground and spillage nearly always need a little more than the flat calculation.
- Skipping drainage. Water sitting under any surface softens the base and leads to ruts and potholes.
- Measuring only the main rectangle. Aprons, turnouts and curved edges add real square footage.
Questions people ask
How many tons is 15 yards of #57 stone?
About 20.2 tons, with a typical range of 19.5 to 21.8.
How many pounds is 15 cubic yards of #57 stone?
About 40,500 pounds.
How much area does 15 yards of #57 stone cover at 4 inches?
About 1,215 square feet.
Why does #57 stone weight vary?
Stone size, the share of fines and moisture all change how much a yard weighs.
Is it better to buy by the ton or the yard?
Either works; just convert with the supplier’s own weight per yard so the two quotes compare fairly.
Related guides
- Number 57 Stone: Size, Weight, Uses, and Coverage
- Tons to Cubic Yards for Gravel: Conversion Chart
- How Much Does a Yard of Crushed Stone Weigh?
- 13 Cubic Yards of #57 Stone in Tons
- 14 Cubic Yards of #57 Stone in Tons
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