How to use it
- Enter length in feet
- Enter width in feet
- Enter depth in inches
- Read cubic yards, cubic feet and ton estimate
This calculator turns the three dimensions of your project—length, width and depth—into the exact volume of rock you’ll need. Enter the length and width in feet, depth in inches, and the tool instantly shows cubic feet, converts that to cubic yards, and then estimates weight in US tons using the industry‑standard 1.4 tons per cubic yard. Knowing cubic yards helps you order the right amount of material, while the ton estimate lets you compare delivery costs. The results are rounded to two decimals for easy reading, but you can adjust for waste or compaction. If you’re planning a garden path, a driveway base, or a retaining wall, the calculator gives you the numbers you need to budget and schedule confidently.
Pro tips
- Add 5‑10% extra for breakage and settling
- Round up to the nearest 0.1 cubic yard for easier ordering
- Check supplier’s minimum load size before ordering
- Verify depth conversion from inches to feet is correct
Real-life examples
- Planning a new garden pathway and need rock fill volume
- Estimating material for a driveway base before getting quotes
- Sizing a retaining wall backfill to avoid ordering too much
Case study
John needed a 10 × 12 ft patio base 6 in deep. The calculator showed 2.22 cubic yards (≈3.1 tons). He ordered 2.5 cubic yards, saved $150 on excess material, and finished on schedule.