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Topsoil Calculator

Estimate how much topsoil you need for an area. Enter length, width, and depth in feet and inches or meters and centimeters.

Your numbers

ft
ft
in
%

You need

2.72 cubic yards

Cubic feet
73.33
Cubic meters
2.08
Approx. weight
2.72 US tons
Show the working
  1. Volume = length × width × depth = 66.67 ft³
  2. With 10% extra = 73.33 ft³
  3. Cubic yards = ft³ ÷ 27 = 2.72

Results are estimates for planning. Check important figures with a qualified professional.

Quick answer

The Topsoil Calculator shows cubic yards of topsoil for lawns and garden beds. How it works: Volume = length × width × depth; Cubic yards = cubic feet ÷ 27. For example, with length of 20 ft, width of 10 ft, and depth of 4 in, the you need is 2.72 cubic yards.

How to use the Topsoil Calculator

  1. Enter length.
  2. Enter width.
  3. Enter depth.
  4. Enter extra for waste. Adds a margin for cuts, spills, and uneven ground.
  5. Open Assumptions and rates to change any rate or fee to match your account.
  6. Read you need and the breakdown. Use Share to send the exact numbers, or Print to save a PDF.

How it's calculated

  • Volume = length × width × depth
  • Cubic yards = cubic feet ÷ 27
  • Tons = cubic yards × weight per cubic yard ÷ 2,000

Worked example

With length of 20 ft, width of 10 ft, depth of 4 in, and extra for waste of 10 %:

You need: 2.72 cubic yards. Cubic feet: 73.33.

Questions people ask

How much extra should I order?

5% to 10% covers uneven ground, compaction, and spills. Go higher for irregular areas.

How much topsoil for a new lawn?

4 to 6 inches is a common depth for new lawns.