Calculate bags or cubic yards of mulch for your garden beds.
Formula: Cubic feet = length × width × (depth ÷ 12). Cubic yards = cubic feet ÷ 27. Bags = cubic feet ÷ bag size.
| Bed Size | Bags (2 cu ft) | Cubic Yards |
|---|---|---|
| 4×10 ft | 5 bags | 0.37 cu yd |
| 4×20 ft | 10 bags | 0.74 cu yd |
| 6×20 ft | 15 bags | 1.11 cu yd |
| 10×30 ft | 38 bags | 2.78 cu yd |
Tip: Bulk mulch is cheaper for large areas (over 1 cubic yard). Bagged is more convenient for small beds. Keep mulch 2 inches away from tree trunks to prevent rot.