Rock Yards Calculator

Instantly calculate how many cubic yards, tons, and cubic feet of rock you need for your yard—free and done in seconds.

  • Free
  • No sign-up
  • Instant results

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How to use it

  1. Enter the length in feet.
  2. Enter the width in feet.
  3. Enter the depth in inches.
  4. Read the cubic yards, tons, and cubic feet results.

This Rock Yards Calculator converts the dimensions you enter—length (ft), width (ft) and depth (in)—into three practical measures: cubic yards, tons (using 1.4 US tons per cubic yard), and cubic feet. Knowing the cubic yards tells you how many loads to order from the supplier; the ton estimate helps you budget material weight limits for trucks; the cubic‑foot figure matches standard excavation quotes. The tool does the conversion instantly, so you can compare options, avoid over‑ordering, and keep your project on schedule. Just plug in your numbers and the results appear, ready to copy into an order form or share with a contractor.

Pro tips

  • Add 5‑10% extra for compaction and breakage when ordering rock.
  • Round up to the nearest whole cubic yard to simplify delivery calculations.
  • Check local supplier weight limits; 1 cubic yard equals 1.4 tons.
  • Enter depth in inches, not feet, to avoid common conversion errors.

Real-life examples

  • A homeowner planning a new patio needs to know how much crushed stone to purchase.
  • A landscaper estimating fill material for a garden berm wants both volume and weight.
  • A contractor preparing a quote for a driveway base must match supplier cubic‑yard pricing.

Case study

Sam entered his 12 ft × 10 ft area with a 4‑inch depth. The calculator showed 1.78 cubic yards, 2.5 tons, and 48 cubic feet. He ordered 2 cubic yards, saving $120 and avoiding a costly second delivery.

Frequently asked questions

How do I convert depth from inches to feet?
Divide the inch value by 12; the calculator does this automatically.
Why does the ton estimate differ from the cubic‑yard number?
Because each cubic yard of rock weighs about 1.4 US tons, a standard industry estimate.
Do I need to include space for settling?
Add a small waste factor (5‑10%) to the cubic‑yard result to cover settling.
Can I use the calculator for sand or gravel?
Yes, but adjust the weight per cubic yard if the material’s density differs from rock.
Is the result exact?
It’s an approximation based on the given constants; round up for ordering safety.