Mulch & Soil Volume Calculator
Fill in the values and the answer updates as you type.
How the Mulch & Soil Volume Calculator works
Volume = length × width × depth (in feet), then ÷ 27 for cubic yards. A 3 inch layer suppresses weeds without smothering plants. The extra percentage covers uneven ground and settling. Example: with the default values, cubic yards comes to 0.81.
Inputs and results
The Mulch & Soil Volume Calculator takes 5 inputs and gives 3 results.
What you enter
- Length (ft) — starts at 10.
- Width (ft) — starts at 8.
- Depth (in) — starts at 3.
- Extra for settling (%) — starts at 10.
- Bag size (cu ft) — starts at 2.
What you get
- Cubic yards
- Cubic feet
- Bags needed
Example: Mulch & Soil Volume Calculator with the starting values
With length 10 ft, width 8 ft, depth 3 in, extra for settling 10 % and bag size 2 cu ft, the calculator returns:
| Cubic yards | 0.81 |
|---|---|
| Cubic feet | 22 |
| Bags needed | 11 |
Change any value above and the results update straight away.
Mulch & Soil Volume Calculator FAQ
How do I use the Mulch & Soil Volume Calculator?
Enter length, width, depth and extra for settling in the fields, then read cubic yards, cubic feet and bags needed in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.
What does the Mulch & Soil Volume Calculator calculate?
Cubic yards and bags needed to cover a garden bed. It returns cubic yards, cubic feet and bags needed from the 5 values you provide.
What values does the Mulch & Soil Volume Calculator start with?
It opens with length 10 ft, width 8 ft, depth 3 in and extra for settling 10 % so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.
Is the Mulch & Soil Volume Calculator free and private?
Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.
Can I rely on the Mulch & Soil Volume Calculator for important decisions?
Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm important decisions with a qualified professional. See the Disclaimer for more.