Gravel Rock Calculator

Instantly calculate how many cubic yards, tons, and cubic feet of gravel you need for any project—free and immediate, free, no sign-up

  • 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 Gravel Rock Calculator turns your length, width, and depth into three practical measures: cubic yards (the standard order unit), approximate tons (using 1.4 US tons per cubic yard), and cubic feet (useful for on‑site checks).

Why it matters Knowing cubic yards prevents ordering too little material, which can halt a project and add rush fees. The ton estimate helps you compare price quotes that are listed by weight. Cubic feet let you verify the math against your own measurements.

How to read the results

  • Cubic yards – round up to the next whole yard for ordering.
  • Tons (approx) – a quick weight reference; actual weight may vary.
  • Cubic feet – the raw volume before conversion, good for double‑checking.

Pro tips

  • Add 5‑10% extra for compaction.
  • Round up to the nearest whole yard to avoid shortfalls.
  • Order a little more than calculated to cover spills.
  • Double‑check depth conversion from inches to feet.

Real-life examples

  • A homeowner planning a 12 ft × 15 ft driveway with 3 in depth.
  • A landscaper estimating gravel for a 200 sq ft garden path, 2 in deep.
  • A contractor needing material totals for a 500 sq ft patio at 4 in depth.

Case study

Sam entered 8 ft × 10 ft and 3 in depth, got 0.74 yd³ (≈1.0 ton). He ordered 1 yd³, avoided a costly short‑order, and completed his driveway on schedule.

Frequently asked questions

How do I convert depth inches to feet?
Divide the inches by 12; the calculator does it automatically.
Why is the ton estimate different from supplier quotes?
We use 1.4 tons per cubic yard, a standard average; actual weight can vary by stone type.
Do I need to include a waste factor?
Add 5‑10 % extra to the cubic yard result for compaction and spillage.
Can I use the calculator for sand or mulch?
The volume numbers are correct for any material; only the weight conversion changes.
Is the result in US tons?
Yes, the ton figure is based on US short tons (2,000 lb).