Topsoil Calculator › 30×40 area

Topsoil for a 30×40 Area at 3 inches

A 30×40 area (1,200 sq ft) at 3 inches needs about 11.11 cubic yards of topsoil — roughly $356. See the full breakdown.

You need

11.11 cu yd

Estimated material cost $356

Area

1,200 sq ft

Volume

300.0 cu ft

40-lb bags

400

Weight

12.22 tons

Adjust for your project

Length (ft)

Width (ft)

Depth (in)

Local price (per cuyd)

You need

11.11 cu yd

Estimated material cost $356

Area

1,200 sq ft

Volume

300.0 cu ft

40-lb bags

400

Weight

12.22 tons

Material shopping list

Order about 11.11 cubic yards of topsoil.
Budget about $356 before delivery, taxes, and labor.
Add 5–10% waste for uneven subgrade, cuts, settling, or spillage.

Formula & assumptions

Area = length x width. Volume = area x depth / 12. Cubic yards = cubic feet / 27. Cost = quantity x local unit price.

Default depth: 3 inches
Default price: $32 per cuyd
40-lb bags yield: 0.75 cu ft each
Weight factor: 1.1 tons per cubic yard

These assumptions make the estimate easy for search engines and AI answer tools to verify. Replace the default price with your supplier quote for a local estimate.

Based on $32 per cuyd national average. Enter your local price for an exact quote. Estimate only.