Use the supplier conversion
Prefer the supplier's scale ticket and product-specific density because grading, moisture, and compaction change volume.
Continue planning
How the calculation works
We use 139 lb/ft³ default aggregate-base value.
Formula: cubic yards = tons × 2,000 ÷ density ÷ 27
Worked example
One short ton at 139 lb/ft³ occupies about 0.53 cubic yard.
Start with weight and density
Enter US short tons and the loose bulk density in pounds per cubic foot for the exact supplied material.
Material density reference
| Material | Planning density |
|---|---|
| Hot asphalt mix | 145.2 lb/ft³ |
| Aggregate base | 139 lb/ft³ |
| Gravel estimate | 105 lb/ft³ |
Frequently asked questions
Why do cubic yards per ton vary?
A ton measures weight and a cubic yard measures volume, so density determines the relationship.
Which density should I enter?
Use the supplier's loose bulk density for the exact product whenever it is available.
Sources and assumptions
FHWA Federal Lands 139 lb/ft³ aggregate-base estimating value used as the default.
Last reviewed: August 14, 2026. Read the methodology and sources.