Mulch / Soil
Figure out the cubic yards of mulch or soil for a garden bed from its length, width and depth in inches. It converts depth to feet, computes the volume, and divides by 27 for cubic yards. It also estimates 2-cubic-foot bags if you're buying by the bag.
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Worked example
Cubic yards: 1.481481 · Bags (2ft³): 20
Inputs
- Length ft
20 - Width ft
8 - Depth in
3
Frequently asked
Bags or bulk?
Bulk by the cubic yard is cheaper for large beds; bags (2 ft³ each) are easier for small jobs.
How deep should mulch be?
2–3 inches suppresses weeds and retains moisture without smothering roots.