How this calculator works
Calculate gravel volume for driveways, paths and base layers, then convert volume to an approximate weight using an adjustable density.
Formula
Cubic yards = length × width × depth in feet ÷ 27. Tons = cubic yards × material density.
Cubic yards = length × width × depth in feet ÷ 27. Tons = cubic yards × material density.
Example
A 30 × 10 ft area at 4 inches deep is roughly 3.7 cubic yards before compaction or overage.
Reliability check
Replace the example density with the supplier’s value for the exact aggregate and condition. Separate geometric overage from compaction; moisture, grading and delivery rounding affect tonnage.
How to get a better estimate
- Stone density varies by type and moisture.
- Compaction can increase the delivered quantity needed.
- Your supplier can give the best tons-per-yard value for the exact aggregate.
What the result means
Gravel density varies by aggregate, gradation and moisture. The weight result is approximate; confirm density, compaction allowance and truck capacity with the supplier.
Reference tables
Compare geometric cubic yards first, then verify the exact aggregate density before relying on the tonnage column.