Mulch Calculator

How many cubic yards of mulch your garden bed needs.

Interactive calculator
Result
Cubic yards
0.93
2-cu-ft bags
13
What it is

Mulch is sold in bags (~2 ft³) or bulk by the cubic yard. Spread 2–4 inches deep for most beds.

The formula

Cubic yards = (L × W × D/12) ÷ 27

Why it matters

Understanding mulch calculator helps you make a better-informed decision before you commit money or time.

Worked examples

Try the example

Use the defaults above as a starting point — then adjust the inputs to match your situation.

Common pitfalls
  • Double-check the units on every input — most errors come from mixing units.
  • Round at the end, not in the middle of the formula.

Frequently asked questions

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