Mulch Calculator
Bed volume for landscaping mulch. Depth is often 2 to 3 inches. Cubic yards divide cubic feet by 27. This is coverage, not a soil test.
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How to estimate mulch coverage
- Enter bed length and width. Approximate curves as rectangles.
- Enter depth. Many beds use 2 to 3 inches of mulch.
- Set waste for extra bags or a bulk dump. Optional: density for tons.
- Read cubic feet, yards, and meters. Confirm with the landscape yard. Estimate only.
Landscape mulch volume
Bed coverage at a typed depth
| Volume | L × W × D with waste |
|---|---|
| Typical depth | Often 2 to 3 inches |
| Cubic yard | 27 cubic feet |
| Tons | ft³ × density (lb/ft³) / 2000 when set |
| Not computed | pH, nutrients, or weed control |
| Advice | Estimate only. Not a soil test or structural design. |
How mulch volume is computed
The same box product as other bulk materials: convert to feet, multiply, then apply waste. Cubic yards use 27 ft³. Optional tons need a density you type.
Mulch depth versus gravel or concrete
Mulch is organic cover at a shallow depth. Gravel is mineral coverage on the gravel calculator. Concrete is a pour on the concrete calculator. This page does not test soil.
Estimate only, not a soil test
Species, moisture, and bag size change coverage. A soil lab report is a different document. Area without depth is square footage. Not code approval.
Use cases
A shrub bed, a tree ring approximated as a rectangle, or converting bags when you know bag cubic feet as density elsewhere. Fine grading is not modeled.
Limits
Dimensions must be greater than 0. Waste stays from 0 to 50. Blank density skips tons. CZNull does not receive the numbers.