Topsoil calculator
How much topsoil? Enter area and depth for cubic yards and 40 lb bag count.
Short answer: cu yd = (L × W × depth/12) ÷ 27. 40 lb bag ≈ 0.75 cu ft. 15 × 10 ft × 4" = 50 cu ft ≈ 1.85 cu yd or 67 bags. Enter your measurements above and the topsoil calculator returns the quantity, unit conversions and an estimated cost instantly, in imperial or metric — no sign-up needed.
What do you need to measure?
What is the answer?
Cubic yards
1.85
40 lb bags
67
Est. cost (bulk)
$56
How does the topsoil calculator work?
cu yd = (L × W × depth/12) ÷ 27. 40 lb bag ≈ 0.75 cu ft.
What does a worked example look like?
15 × 10 ft × 4" = 50 cu ft ≈ 1.85 cu yd or 67 bags.
What do people ask most?
›How many bags in a cubic yard?
About 36 bags of 40 lb topsoil equal one cubic yard.
›How deep for a new lawn?
4–6" of screened topsoil before seed or sod.
Which yard & landscape calculator should you use next?
Where can you learn more?
Read field notes on estimating and materials, or browse every calculator we make.
What should you read before you order materials?
Field notes from real jobs that explain the numbers behind this calculator.
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