Dirt Weight Calculator

Instantly calculate the cubic yards, cubic feet, and approximate tons of dirt for your project – free and instant.

  • Free
  • No sign-up
  • Instant results

Loading calculator…

How to use it

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

What the Dirt Weight Calculator does

Enter the length, width, and depth of the area you plan to fill and the tool instantly converts those dimensions to cubic feet, then to cubic yards, and finally estimates the weight in US tons using the industry‑standard 1.3 tons per cubic yard.

Why it matters – Knowing volume and weight helps you order the right amount of material, avoid costly over‑orders, and ensure trucks can handle the load.

How to read the results

  • Cubic feet – raw volume in the unit you measured.
  • Cubic yards – the common ordering unit for bulk dirt (1 yd³ = 27 ft³).
  • Tons (approx) – weight you’ll be billed for, based on 1.3 tons per cubic yard.

Use the results to compare supplier quotes, schedule deliveries, and calculate excavation costs. The calculator works for any shape as long as you can approximate it with a rectangular footprint.

Pro tips

  • Add a 10% waste allowance to avoid shortfalls
  • Round up to the nearest half‑yard when ordering for easier truck loads
  • Check your truck’s payload limit before confirming the tonnage
  • Double‑check depth conversion from inches to feet to keep calculations accurate

Real-life examples

  • Homeowner planning a new garden bed needs to know how much soil to order
  • Contractor estimating fill material for a driveway excavation
  • Landscape designer budgeting dirt volume for a park renovation

Case study

Sam needed to fill a 12 ft × 8 ft patio with 4 in of sand. Using the calculator he saw the job required 0.99 yd³ (≈1.3 tons). He ordered 1 yd³, saved $200 on excess material, and the delivery fit his truck.

Frequently asked questions

How do I convert depth in inches to feet?
Divide the inches by 12; the calculator does this automatically.
Why is the weight shown as an approximation?
Weight varies by moisture and compaction, so 1.3 tons per cubic yard is a standard estimate.
Do I need to include a waste factor?
Yes, adding 10% extra volume is a common practice to cover spillage and settling.
Can I use this for gravel or mulch?
The volume conversion works for any bulk material; adjust the weight factor if you know a different tonnage per yard.
Is the calculator free to use?
Yes, it’s completely free with no sign‑up required.