Dirt Fill Calculator

Calculate the cubic yards, tons, and cubic feet of dirt you need instantly for 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 depth in inches
  4. Read cubic yards, tons, and cubic feet results

What it does – The Dirt Fill Calculator takes the length, width and depth of a planned fill area and instantly converts them to three useful measures: cubic yards, cubic feet, and an approximate weight in US tons. Knowing the volume in cubic yards is essential because most bulk‑dirt suppliers price by the yard. The cubic‑feet figure helps when you need to compare to building‑code limits or trench specifications. The ton estimate, based on 1.3 US tons per cubic yard, lets you budget haul‑away or delivery costs without guessing. Simply type your dimensions, hit calculate, and the tool displays the three numbers. Use the cubic‑yard result for ordering, the ton figure for truck capacity, and the cubic‑feet value for on‑site planning. The results are displayed with two decimal places for easy reading.

Pro tips

  • Add 10% extra volume for compaction and spillage
  • Round up the cubic‑yard figure to the nearest whole yard when ordering
  • Confirm the supplier’s ton conversion matches 1.3 tons per cubic yard
  • Double‑check depth conversion from inches to feet before entering

Real-life examples

  • A homeowner planning a 12‑ft by 8‑ft garden bed 6 in deep needs to know how much topsoil to order.
  • A contractor filling a 30‑ft wide driveway trench 4 in deep wants the tonnage for the dump‑truck bid.
  • A landscaper estimating material for a sloped lawn area to avoid under‑ordering dirt.

Case study

Sam needed soil for a new patio. He entered 15 ft length, 10 ft width, and 8 in depth; the calculator returned 3.7 cubic yards, 4.8 tons and 100 cubic feet. Sam ordered 4 cubic yards, saved $200 on excess material, and completed the patio on schedule.

Frequently asked questions

How do I convert depth in inches to feet for the calculator?
Enter the depth in inches; the calculator automatically converts it to feet for volume calculations.
Why does the ton estimate differ from supplier quotes?
The tool uses a standard 1.3 US tons per cubic yard; suppliers may use a different density based on moisture content.
Can I use the calculator for sand or gravel?
Yes, but adjust the ton conversion if the material’s density differs from the 1.3 tons per cubic yard used for dirt.
What if my site is sloped?
Measure the average depth across the area; the calculator assumes a uniform depth, so use the average for best results.
Do I need to create an account to see results?
No, the calculator provides instant results for free without any sign‑up.