MyYardCalcCubic yards to tons: use your material’s density
A cubic yard measures space. A ton measures weight. To convert an order of gravel, rock or soil between them, you need the bulk density of that particular material.
The conversion formula
If your supplier gives density in short tons per cubic yard, multiply by that value directly. A quote of 1.4 short tons per cubic yard means the same as 2,800 lb per cubic yard. These are example inputs, not a recommended density for all gravel.
To go the other way, divide the weight in short tons by the density in short tons per cubic yard. At that example density, 7 short tons ÷ 1.4 = 5 cubic yards. Density must be greater than zero and must describe the condition of the material you are measuring.
Example: one volume, three possible weights
Suppose your dimensions give a volume of 2.5 cubic yards. The table shows why choosing a convenient conversion factor can change the order substantially.
| Example bulk density | Calculation | US short tons |
|---|---|---|
| 2,400 lb/cu yd | 2.5 × 2,400 ÷ 2,000 | 3.00 |
| 2,800 lb/cu yd | 2.5 × 2,800 ÷ 2,000 | 3.50 |
| 3,200 lb/cu yd | 2.5 × 3,200 ÷ 2,000 | 4.00 |
The first and last examples differ by a whole short ton even though the volume is identical. Product grading, moisture and whether the volume is loose or compacted all matter. A density for solid stone is not automatically the bulk density of a pile that includes spaces between stones.
Check what “ton” means on the quote
A US short ton is 2,000 lb. A metric tonne is 1,000 kg, approximately 2,204.62 lb. A long ton is 2,240 lb. They are different units; confirm the unit instead of guessing from the word “ton”.
In metric measurements, kilograms = cubic meters × density in kg per cubic meter. Divide the result by 1,000 for metric tonnes. For example, 2 cubic meters at an illustrative 1,600 kg/m³ gives 3,200 kg, or 3.2 tonnes.
Use density and allowance once
First calculate the volume from your area and depth. Decide whether a separate ordering allowance is appropriate. Convert that resulting volume using the supplier’s density for the same material state. Do not add a second compaction percentage if the supplier has already converted an installed volume into a loose delivery quantity.
Our gravel calculator accepts lb per cubic yard in US mode and kg per cubic meter in metric mode. Weight remains unavailable when density is blank. The river rock and topsoil calculators follow the same approach.
From a calculated weight to an order
Ask the supplier to confirm the product, delivery condition, density units, minimum order and load increments. The calculated tonnage is an estimate, not a weighbridge ticket or a vehicle payload approval. Compare prices using the same material and units; our bulk cost field uses volume pricing, so do not enter a price per ton into a price-per-cubic-yard field.
Calculate volume and optional weight →
See our unit conversions and calculation method and the bagged versus bulk cost example for the next step.