Mulch Calculator
Calculate how much mulch you need in cubic feet, cubic yards, and bags. Enter your area dimensions and desired depth to get an instant estimate.
About the Mulch Calculator
Mulch is one of the most cost-effective ways to improve garden health — it retains moisture, suppresses weeds, and regulates soil temperature. Our calculator gives you results in cubic feet, cubic yards, and standard bag counts so you can compare bulk delivery vs. bagged mulch prices. For other landscaping material calculations, check out our Gravel Calculator for stone and aggregate needs.
Most garden beds need 2–4 inches of mulch depth. Use 2–3 inches for vegetable gardens and 3–4 inches for ornamental beds and around trees. The weight estimate (approximately 700 lbs per cubic yard) is a midrange figure — hardwood mulch can be heavier when wet, while pine bark tends to be lighter. Weight matters for delivery planning. If you're working on indoor tiling as well, our Tile Calculator can help with flooring projects.
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For a related calculation, use Gravel Calculator to calculate gravel volume in cubic yards and tons for different gravel types by area and depth. Alternatively, use Tile Calculator to calculate tiles and boxes needed for any room. Includes waste percentage and fixture subtraction.