Mulch Calculator

Estimate mulch volume in cubic yards and bags

Estimate how much mulch a garden bed needs, in cubic yards and bags.

Estimate mulch for a rectangular bed. Bag sizes are typically 2 cu ft or 3 cu ft.

ft
ft
in

Cubic Yards

0.93

2 cu ft Bags

13

3 cu ft Bags

9

How to Use This Calculator

  1. Enter the bed length and width in feet.
  2. Enter the desired mulch depth in inches.
  3. Review the cubic yards and the number of 2 or 3 cubic-foot bags.

Why Use This Calculator?

  • Ordering mulch for a garden bed.
  • Deciding between bulk and bagged mulch.
  • Comparing mulch depths.

Real-World Examples

A 10 × 10 ft bed, 3 inches deep

That's about 0.93 cubic yards — roughly 13 bags of 2 cubic feet, or 9 bags of 3 cubic feet.

Frequently Asked Questions

How deep should mulch be?

2–4 inches is typical. Thinner layers don't suppress weeds well; too thick can block water and air from reaching roots.

Bulk or bags — which is cheaper?

Bulk is usually cheaper for larger areas; bags are more convenient for small beds and easier to transport.

Does mulch settle over time?

Yes, it compacts and breaks down. Ordering a little extra lets you top up as it settles.

Important Disclaimer

Estimates based on the dimensions you enter. Bag sizes and actual coverage vary. Verify quantities before ordering.

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