Cubic Yards to Tons: How to Order the Right Amount of Gravel, Sand, or Soil
By the Super Simple Digital Tools Team · Updated June 2026
If you have ever priced out a driveway or a garden project, you have probably hit a frustrating mismatch: you measured the job in cubic yards, but the supplier quotes the material in tons. The two units answer different questions. Cubic yards describe how much space a pile of gravel or soil will occupy once it is spread, while tons describe how heavy that pile is when it rolls across the weigh scale at the yard. Converting between them is the bridge that lets you turn a tape-measure number into a number you can actually order.
The reason a single conversion factor does not exist is density. A cubic yard is always 27 cubic feet of space, but what fills that space changes everything. Pack it with dry mulch and it is light; pack it with wet crushed stone and it can weigh more than twice as much. That is why this conversion always needs two inputs: your volume in cubic yards and the material's unit weight. Once you have both, the rest is arithmetic that any calculator handles in a fraction of a second.
To do it by hand, multiply your cubic yards by the density in tons per cubic yard. For typical materials in many regions, sand runs near 1.3 tons per yard, gravel about 1.4, and stone around 1.5. So 10 cubic yards of gravel is roughly 14 tons. If you only know density in pounds per cubic foot, use the longer formula: cubic yards times 27 times that density, divided by 2,000. Both routes give the same answer; the short version just hides the 27-and-2,000 step inside the per-yard figure.
Moisture and compaction are the silent variables that throw estimates off. The same sand can weigh noticeably more after rain, and a compacted base will read heavier than a freshly dumped, fluffy load. Particle size and stone type matter too, which is why a reputable supplier can give you the exact unit weight for the specific product they stock. Treat published averages as a starting point and adjust toward the supplier's figure for anything more than a small order.
A smart ordering routine looks like this: measure your area, calculate the volume in cubic yards, convert to tons, then add a small buffer for settling and waste. Confirm the tonnage against the supplier's own density before you commit, because bulk aggregate is heavy, awkward to return, and often non-refundable. Get the conversion right up front and you avoid the two classic mistakes: a half-finished project from ordering too little, or a leftover mountain of stone you paid to haul away.
- Always ask your supplier for the exact unit weight (tons per cubic yard) of the specific product you are buying rather than relying on generic averages.
- Account for moisture: order wet or recently rained-on material expecting a higher weight, since water adds real tonnage without adding usable volume.
- Add roughly 5 to 10 percent extra to your converted tonnage to cover settling, compaction, and spillage so you are not left short.
- Double-check whether a quote is in US short tons (2,000 lb) or metric tonnes (1,000 kg) before comparing prices, since the units differ by about 10 percent.