Cubic Yard Estimator Calculator

Instantly calculate cubic yards from length, width and depth – free and instant.

  • 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 feet and click Calculate.

What it does – The Cubic Yard Estimator takes the three dimensions of a space (length, width, depth) entered in feet and instantly converts the total volume to cubic yards. Why it matters – Contractors, landscapers, and DIY homeowners need cubic yards to order concrete, mulch, or soil without over- or under-buying, which saves money and reduces waste. How to read it – The result shows the exact number of cubic yards; you can round up to the nearest whole yard for ordering, or keep the decimal for precise calculations. The calculator uses the fixed conversion of 27 cubic feet per cubic yard, so the math is reliable every time. Enter your numbers, hit calculate, and the tool instantly displays the volume. No manual multiplication or unit conversion is required, letting you focus on planning the project. The simple interface works on any device, so you can measure on‑site with a phone or tablet.

Pro tips

  • Add 10% extra to cover compaction and spillage.
  • Round up to the next whole yard when ordering bulk material.
  • Measure dimensions at the deepest point for irregular pits.
  • Double‑check units; the calculator expects feet, not inches or meters.

Real-life examples

  • A homeowner ordering 3‑yard mulch for a new garden bed.
  • A contractor estimating concrete for a 10 × 12 × 0.5 ft slab.
  • A landscaper calculating soil needed for a raised planting area.

Case study

Sam needed 4 cubic yards of topsoil for a raised bed. He entered 12 ft × 8 ft × 0.5 ft into the estimator and got 1.78 cubic yards, rounded up to 2 yards, realizing his initial plan was short, he added a 10% waste factor and ordered 3 yards, avoiding a costly second delivery.

Frequently asked questions

How do I convert cubic feet to cubic yards?
Divide the cubic feet by 27.
Why should I add extra yardage when ordering material?
Materials settle, compact, or spill, so a waste allowance ensures you don’t run out.
Can I use inches instead of feet?
The calculator only accepts feet; convert inches to feet (inches ÷ 12) before entering.
Is the result rounded automatically?
The tool shows the exact decimal; you decide whether to round up for ordering.
Does depth include the slope of a trench?
Use the deepest point for depth; if the trench slopes, calculate separate sections or use an average depth.