Mulch Calculator — Free Yard & Bag Estimator

Q: How many bags of mulch equal one cubic yard?

A standard 2-cubic-foot bag of mulch equals about 0.074 cubic yards. You need approximately 13.5 bags to cover one cubic yard. Our calculator converts automatically.

Q: What depth of mulch should I use?

For most garden beds, 2–3 inches of mulch is ideal. It suppresses weeds and retains moisture without suffocating plants. For paths or heavy weed areas, go up to 4 inches.

Q: How much does a yard of mulch cost?

Bulk mulch typically costs $25–$50 per cubic yard depending on type and location. Bagged mulch runs $4–$8 per 2 cu ft bag. Use our cost estimator to compare options.

Mulch & Topsoil Calculator

Fill in your garden bed details below

Area Shape

Length (ft)

Please enter a valid length.

Width (ft)

Please enter a valid width.

Depth (inches) — recommended: 2–3 in

Please enter a depth between 0.5 and 12 inches.

Bag size (cu ft)

Price per bag ($)

Estimates only. Add 10–15% extra for waste/uneven areas. See Terms of Use.

How to Use the Mulch Calculator

1 Choose your shape — rectangle for most beds, circle for round features, triangle for corner beds.
2 Enter dimensions in feet. Measure the longest length and widest width.
3 Set depth — 2 inches for refresh, 3 inches for new beds, up to 4 inches for weed control.
4 Enter your bag price (check your local Home Depot or Lowe's) and hit Calculate.

Frequently Asked Questions

How much mulch do I need for my garden? +

Measure your bed's length and width in feet, then decide on depth (2–3 inches is standard). Multiply length × width × depth (converted to feet) and divide by 27 to get cubic yards. Our mulch calculator does this instantly — no math required.

How many bags of mulch equal one cubic yard? +

A standard 2-cubic-foot bag equals about 0.074 cubic yards. You need approximately 13.5 bags per cubic yard. Our calculator handles the conversion automatically based on your selected bag size.

What depth of mulch should I use? +

For most garden beds, 2–3 inches is ideal — it suppresses weeds and retains moisture without suffocating plants. For paths or heavy weed areas, go up to 4 inches. Avoid piling mulch against tree trunks ("volcano mulching").

How much does a yard of mulch cost? +

Bulk mulch typically costs $25–$50 per cubic yard depending on type (hardwood, cedar, rubber) and your region. Bagged mulch at big-box stores runs $4–$8 per 2 cu ft bag. Bulk delivery is usually cheaper for orders over 3 cubic yards.

Can I use this calculator for topsoil? +

Yes! The volume calculation is the same for topsoil, compost, gravel, or any other bulk material. Just enter your area dimensions and desired depth — the cubic yards result applies to any material.

Mulch & Topsoil Calculator

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How to Use the Mulch Calculator

Frequently Asked Questions