How Much Topsoil for 100 Square Feet? (Cubic Yards & Bags)

How Much Topsoil for 100 Square Feet?

1.23cubic yards

at 4 inches deep — about 45 bags (0.75 cu ft each) or 1.36 tons

Depth	Cubic yards	Cubic feet	40 lb bags (≈0.75 cu ft)	Approx. tons
2 in	0.62 yd³	16.7 ft³	23	0.68
4 in (typical)	1.23 yd³	33.3 ft³	45	1.36
6 in	1.85 yd³	50 ft³	67	2.04

New garden beds typically need 4–6 inches of topsoil, raised-bed topping 2–4 inches, and lawn leveling only ½–1 inch. Topsoil is heavy — about 1.1 tons per cubic yard — so plan delivery for anything over a yard.

The math: 100 sq ft × depth in feet ÷ 27 = cubic yards. One cubic yard of topsoil covers 162 sq ft at 2" · 81 sq ft at 4" · 54 sq ft at 6".

For lawn top-dressing at ½ inch, divide the ½-inch numbers from the 1-inch figure — or use the calculator with a custom depth.

How Much Topsoil for 100 Square Feet?

Different area?

Same area, other materials