How Much Top Soil Does Grass Need Calculator

Calculate how many cubic yards, tons, and cubic feet of topsoil you need for a lawn instantly and free.

  • Free
  • No sign-up
  • Instant results

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How to use it

  1. Enter length in feet.
  2. Enter width in feet.
  3. Enter desired depth in inches.
  4. Click Calculate to see cubic yards, tons, and cubic feet.

This calculator instantly converts your lawn dimensions into the three measurements you need to order topsoil: cubic yards, tons, and cubic feet. Knowing the volume helps you avoid short‑orders that stall planting, and prevents over‑buying that wastes money and space. Simply input length, width, and depth, and the tool applies the standard conversion (1 cubic yard = 27 cubic feet) and the industry‑standard weight of 1.3 US tons per cubic yard. The result shows the exact volume, an approximate weight for delivery quotes, and the raw cubic‑foot amount for on‑site planning. Use the numbers to compare suppliers, schedule deliveries, and ensure a smooth, even lawn installation.

Pro tips

  • Add 5‑10% extra for compaction and spillage.
  • Round up to the nearest whole cubic yard for ordering simplicity.
  • Order by weight if the supplier quotes per ton; use 1.3 tons per cubic yard.
  • Double‑check depth; a common mistake is entering inches instead of feet.

Real-life examples

  • A homeowner prepping a 30 × 40 ft backyard for new sod.
  • A landscaper estimating soil for a community park’s new grass fields.
  • A DIY gardener ordering topsoil for raised beds and needs precise volume.

Case study

Jane measured her 12 × 18 ft patio area, entered a 2‑inch depth, and the calculator showed 1.33 cubic yards (≈1.7 tons). She ordered 1.5 cubic yards, saved $50, and completed her lawn without a second delivery.

Frequently asked questions

How do I convert my measurements to the units required?
Enter length and width in feet, depth in inches; the calculator handles all conversions.
Why does the result show tons?
Suppliers often price topsoil by weight; we use 1.3 US tons per cubic yard as the industry estimate.
What if my area isn’t a perfect rectangle?
Break the space into rectangles, calculate each, then add the results.
Do I need to account for soil compaction?
Add a 5‑10% waste factor to cover compaction and settling.
Is the calculator free to use?
Yes, it’s completely free with no sign‑up required.