200 ft2 at 3 in
- Cubic feet
- 52.5
- 2 ft3 bags
- 27
- Waste added
- 5%
Mulch Calculator
Use this free mulch calculator to estimate bulk cubic yards or common bag counts from square feet, depth, and waste.
Research-backed assumptions Formula steps Examples included Private in-browser use
Formula steps
- Convert depth from inches to feet.
- Multiply area by depth to get cubic feet.
- Divide by 27 for cubic yards and by 2 for common bag count.
How to use the mulch calculator
- Enter bed area, desired depth in inches, and a waste percentage.
- Press Estimate mulch to see cubic yards, cubic feet, and 2-cubic-foot bag count.
- Use an average depth for uneven beds.
- Expect settling, bag variation, and old mulch depth to change the real amount.
Common uses
Estimate mulch for a garden bed.
Convert square feet and inches deep into cubic yards.
Estimate common 2-cubic-foot bag count.
Add a small waste buffer before buying.
Examples
About 1.94 yd3
Bulk and bag estimate
Cubic yards and bags
Frequently asked questions
Plain-language answers about when to use the tool, what it does with your inputs, what to double-check, and how privacy works.
When should I use the Mulch Calculator?
Use it when your task matches one of these common needs: Estimate mulch for a garden bed. Convert square feet and inches deep into cubic yards. It works best when you already know the values, dates, units, or settings the page asks for.
What is the Mulch Calculator doing with my inputs?
In plain language: The calculator converts depth from inches to feet, multiplies by area for cubic feet, adds waste, then divides by 27 for cubic yards. The examples on the page are there so you can compare your inputs with a filled-out calculation before copying the answer.
What should I double-check before trusting the answer?
Mulch settles and bag fill can vary. Bed shape, old mulch, slope, and desired finished depth affect real material needs. Also check that you used the right unit, date, scale, or mode because small input changes can change the result.
Does the site save what I enter?
No. The calculator runs in your browser tab. Your recent answers stay only on the page while you use it, and they are not sent to a server.
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