Estimate cubic yards of mulch and convert the volume into two-cubic-foot bags for garden beds, borders, tree rings, and landscaping.
Quick answer: One cubic yard equals 27 cubic feet, or 13.5 bags that each hold 2 cubic feet. Round up to 14 bags before adding overage.
Ballpark, not gospel. Check bag sizes on the label and confirm bulk pricing with your supplier before ordering.
| Area | Depth | Mulch needed | 2-cu-ft bags |
|---|---|---|---|
| 100 sq ft | 2 inches | 0.62 yd³ | 9 bags |
| 100 sq ft | 3 inches | 0.93 yd³ | 13 bags |
| 200 sq ft | 3 inches | 1.85 yd³ | 25 bags |
| 300 sq ft | 3 inches | 2.78 yd³ | 38 bags |
Straight answers, no fluff. Then run your own numbers above.
There are 13.5 two-cubic-foot bags in a cubic yard, so round up to 14 bags before adding overage.
Multiply the area by depth to get cubic feet, divide by 27 for cubic yards, then multiply cubic yards by 13.5 for two-cubic-foot bags.
Most beds use 2 to 3 inches. Four inches is usually a practical maximum for a fresh layer.
Add around 10 percent for settling, uneven areas, and waste.
Start from bed dimensions with the mulch calculator, or read the bags-vs-bulk breakdown in how much mulch do I need.