How it works
Estimate the volume of mulch or soil needed for your garden beds and landscaping projects.
Input query strings and outputs
Use an input name in this page’s URL as ?name=value, and join additional inputs with &. Portable shared links may instead use the compact ?ac= state parameter.
Input query strings
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?length=Length (ft)Number · Optional · Default: 10
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?width=Width (ft)Number · Optional · Default: 5
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?depth=Target Depth (inches)Number · Optional · Default: 3
Outputs
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resultResultText · Primary output
result contains the calculator’s complete rendered result area, including its visible result cards, tables, charts, and messages.
Estimate the volume and number of bags needed for landscaping projects
Description
The Mulch Calculator is a essential project-planning tool for homeowners and landscapers. Mulch is typically sold by the “cubic yard” (for bulk delivery) or in “2-cubic foot bags.” By measuring the length, width, and desired depth of your garden beds, this tool tells you exactly how much material to order, preventing waste and ensuring your plants have the coverage they need to retain moisture and suppress weeds.
Inputs
- Length (ft): The longest side of the rectangular area.
- Width (ft): The shorter side of the rectangular area.
- Depth (in): How deep you want the mulch layer to be (standard is 2-3 inches).
Outputs
- Cubic Yards Needed: The total volume for bulk purchase.
- Bags (2 cu ft each): The total number of individual bags to buy at a garden center.
Chart
- N/A: This tool provides precision numeric volume results.
“Good to Know”
- The Math: 1 Cubic Yard = 27 Cubic Feet. Since garden beds are measured in feet but depth is measured in inches, this tool handles all the unit conversions for you.
- Settling: Most mulch settles over time. It’s often a good idea to buy one or two “spare” bags to touch up areas that look thin after a few weeks.
- Bag Sizes: While 2 cu ft is the industry standard for bark and nuggets, some specialty mulches come in 1 or 1.5 cu ft bags. Always double-check your bag size if it differs from the default.
Examples
Example 1: Small Flower Bed
- Input: 10 ft x 5 ft, 3 inches deep
- Output: 0.46 Cubic Yards (7 Bags)
Example 2: Large Backyard Border
- Input: 50 ft x 4 ft, 2 inches deep
- Output: 1.23 Cubic Yards (17 Bags)
Example 3: Pathway
- Input: 20 ft x 2 ft, 4 inches deep
- Output: 0.49 Cubic Yards (7 Bags)