How to use it
- Enter length in feet.
- Enter width in feet.
- Enter depth in inches.
- View cubic yards, tons and cubic feet instantly.
What it does – The Rock Coverage Calculator converts the dimensions of a rock‑fill project into three useful units: cubic feet, cubic yards, and estimated weight in US tons. Why it matters – Knowing the exact volume helps you order the right amount of material, avoid costly over‑orders, and plan site preparation. How it works – You input length and width in feet and depth in inches. The tool first turns depth into feet, multiplies the three dimensions to get cubic feet, divides by 27 for cubic yards, and multiplies cubic yards by 1.4 to estimate tons. Reading the results – Cubic feet shows raw space, cubic yards is the standard ordering unit for rock, and tons gives a quick weight estimate for transport and labor planning.
Pro tips
- Add 5‑10% extra volume to cover settling and compaction.
- Round up to the nearest whole cubic yard when ordering.
- Check supplier’s weight per cubic yard; 1.4 tons is an estimate.
- Double‑check depth measurement; inches vs. feet conversion errors are common.
Real-life examples
- A homeowner preparing a backyard patio base needs 5 cubic yards of crushed rock.
- A contractor estimating material for a driveway repair wants to know the tonnage for delivery.
- A landscaper ordering rock for a garden slope wants to avoid ordering too little.
Case study
John needed a 6‑inch deep rock base for a 20 × 15 ft patio. The calculator showed 5.6 yd³ and 7.8 tons, so he ordered 6 yd³, avoiding a costly shortfall and extra trips.