Topsoil Calculator
Type the depth for this project. A recommended depth for a new lawn is not verified. Tons use 1.22 tons per cubic yard from the Delaware DOT chart.
Result: topsoil
Enter an area greater than 0.
How Much Topsoil Do You Need?
Cubic yards = square feet × depth in inches ÷ 324
324 is 27 cubic feet in a cubic yard times 12 inches in a foot. Sample entry, not a recommended depth: 500 square feet at 3 inches is 4.63 cubic yards. The 3 inches is only there so the division can be checked.
Tons equal cubic yards times 1.22. That factor is 2,430 pounds per cubic yard on the Delaware DOT material weight chart.
Topsoil Volumes for Sample Depths
1,000 square feet at three sample depths. None of these depths is a cited recommendation for a new lawn.
| Depth you might enter | Cubic yards |
|---|---|
| 2 inches | 6.17 cu yd |
| 3 inches | 9.26 cu yd |
| 6 inches | 18.52 cu yd |
Common Mistakes With the Topsoil Calculator
- Entering depth in feet. The divisor 324 expects inches.
- Asking for tons. Density is not verified, so tons are omitted.
- Treating any sample depth on this page as the depth a new lawn needs.
Mulch Uses the Same Volume Formula
The mulch link is lower on this page because the yard tools are companions to the lawn tools.
Topsoil Calculator FAQ
How do you convert area and depth to cubic yards?
Square feet times depth in inches, divided by 324.
Does this page recommend a depth for a new lawn?
No. That depth is not verified. Enter the depth for your project.
Does this page convert cubic yards to tons?
Yes. It multiplies cubic yards by 1.22, from 2,430 pounds per cubic yard on the Delaware DOT chart.