Material calculator
Mulch & topsoil calculator
Estimate mulch or topsoil for a bed in cubic yards (for bulk delivery) and in 2 ft³ bags. Mulch is usually applied 2–3 inches deep.
You'll need
1.85 cubic yards
Mulch / topsoil
- 2 ft³ bags
- 25 bags
- Total volume
- 50.0 cubic feet
What this assumes
- Volume = 200 ft² × 3.0 in deep.
- Bag count assumes standard 2 ft³ bags (13.5 bags per cubic yard).
Coverage rates & sources
Every number this calculator uses is a published engineering constant — not an estimate we made up. Here is exactly what it assumes and where each value comes from.
- Standard mulch bag: 2 ft³Source: Industry-standard bagged mulch size (13.5 bags = 1 yd³)
- Cubic yard: 27 ft³Source: Unit conversion
Before you buy
- Bulk (by-the-yard) delivery is almost always cheaper than bags above ~2 cubic yards.
- Topsoil for grading or structural fill should be specified by a landscaper.
- Rectangular/measured beds only; estimate curved beds by their bounding area.
This is a planning estimate, not a substitute for a pro's on-site measurement. For load-bearing, structural, or code-regulated work, confirm quantities with a licensed contractor.
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