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Topsoil Calculator: How Much Topsoil Do I Need?

Enter your project size and get exactly how much topsoil to buy, with no half-empty bags and no second trip. Free, no signup.

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How to estimate topsoil for your project

Topsoil is sold both bagged and in bulk yards. Enter the area you are filling and how deep, and this calculator gives you cubic yards, an approximate ton weight for bulk orders, and a bag count for smaller jobs.

For a new garden bed, 6 to 8 inches of quality topsoil gives roots room to establish. For leveling low spots in a lawn, a half inch to an inch at a time is plenty so you do not smother the existing grass.

Frequently asked questions

How many bags of topsoil make a yard?
Bagged topsoil is often sold in 0.75 cubic foot bags, so it takes about 36 bags to equal one bulk cubic yard (27 cubic feet). Past a dozen bags, bulk delivery is usually the better deal.
How deep should topsoil be for a new lawn?
Aim for 4 to 6 inches of topsoil for a healthy new lawn, tilled into the existing grade. For overseeding or leveling, a thin quarter to half inch top-dressing is enough.

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