Mulch Calculator
Enter the bed area and depth to see how much mulch to order in bulk yards or bags.
ft
ft
in
Cubic yards-
Cubic feet-
2 cu ft bags-
3 cu ft bags-
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How much mulch do I need?
Cubic yards = length x width (ft) x depth (in) / 12 / 27. One cubic yard covers about 108 sq ft at 3 inches deep.
Most beds need 2 to 3 inches of fresh mulch; refresh existing beds with 1 inch. Bulk delivery is usually cheaper than bags above about 2 cubic yards.
Questions
How many bags of mulch in a yard?
One cubic yard equals 27 cubic feet: about 13.5 bags of 2 cu ft or 9 bags of 3 cu ft.
How deep should mulch be?
2 to 3 inches for most beds. Keep it pulled back a few inches from tree trunks and plant stems.
How much area does a yard of mulch cover?
About 162 sq ft at 2 inches, 108 sq ft at 3 inches, and 81 sq ft at 4 inches.