Topsoil Calculator
Calculate how much topsoil you need for your garden, lawn, or raised bed.
Get results in cubic yards, tons, and number of bags.
Topsoil Needed
Topsoil Volume Formula:
Volume (cu ft) = Length (ft) × Width (ft) × Depth (in) / 12
Recommended depths:
- New lawn: 4-6 inches
- Over-seeding existing lawn: 1-2 inches
- Raised garden bed: 6-12 inches
- Flower beds: 3-4 inches
- Topdressing: 0.5-1 inch
Weight estimates:
- 1 cubic yard of topsoil weighs approximately 1.0-1.3 tons (2,000-2,600 lbs)
- Weight varies by moisture content
Bag sizes:
- Standard bag: 1 cubic foot (~40 lbs)
- Large bag: 2 cubic feet (~75 lbs)