Mulch Calculator
Free online Mulch Calculator.
Calculator
How to Use
- Enter the required values
- Click Calculate to see the result
- Review the detailed output
Formula
Volume = Length x Width x Depth (ft) / 27 = cubic yards. Bags = cubic feet / bag size (usually 2 cu ft). Depth: 2-4 inches recommended for most garden beds.
Example Calculations
Garden Bed
Input: 100 sq ft area, 3 inches deep
Result: 0.93 cubic yards, ~14 bags (2 cu ft each)
Large Area
Input: 500 sq ft, 2 inches deep
Result: 3.09 cubic yards, bulk recommended
Tree Ring
Input: Circular bed: 5ft radius, 3 inches deep
Result: 0.72 cubic yards of mulch
About This Calculator
Free online mulch calculator. Calculate instantly in your browser with our easy-to-use tool. No sign-up required.
Our mulch calculator is free, easy to use, and provides instant results. All calculations are performed in your browser for privacy and speed.
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Frequently Asked Questions
How much mulch needed?
L x W x depth (ft) / 27 = cubic yards. 100 sq ft at 3 inches = ~1 cubic yard.
How deep to apply?
2-4 inches for most beds. Avoid piling against stems or trunks (causes rot).
Best mulch type?
Organic (wood chips, bark) improves soil. Inorganic (rubber, stone) lasts longer.
How often replace?
Wood: annually. Bark nuggets: 2-3 years. Rubber: 10+ years.
Bags per cubic yard?
27 cubic feet per yard. Standard 2-cu-ft bags: ~14 per yard. Bulk is cheaper.