basic

Mulch Calculator

Cubic yards of mulch needed for a garden bed.

Estimate how many cubic yards (or cubic feet) of mulch you need to cover a garden bed of any size to a chosen depth.

Marcus Laurent By Marcus Laurent
Published Last reviewed 1 min read

Inputs

ft
ft
in

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Cubic feet = length(ft) × width(ft) × depth(in) ÷ 12. Divide by 27 for cubic yards.

In depth

Estimate how many cubic yards (or cubic feet) of mulch you need to cover a garden bed of any size to a chosen depth.