Estimate how much mulch you need in cubic yards or cubic feet based on area, depth, and extra waste.
To calculate mulch volume, multiply the area by the mulch depth. Since depth is usually measured in inches, convert inches to feet first by dividing by 12.
Formula: area × depth in feet = cubic feet
To convert cubic feet to cubic yards, divide by 27.
| Depth | Common Use |
|---|---|
| 2 inches | Light refresh or decorative top layer |
| 3 inches | Common landscaping depth |
| 4 inches | Heavier weed control or new beds |
Consider adding 5% to 10% extra mulch for uneven ground, settling, waste, and spreading differences.
Use this mulch calculator for garden beds, landscaping projects, tree rings, playground areas, yard refreshes, and bulk material planning.
Multiply the area in square feet by the mulch depth in feet to get cubic feet. Divide by 27 to get cubic yards.
Most mulch projects use 2 to 4 inches of depth. A 3-inch depth is a common general estimate.
Yes. Adding 5% to 10% extra helps account for uneven ground, waste, and settling.
There are 27 cubic feet in one cubic yard.