How to use it
- Enter the length in feet.
- Enter the width in feet.
- Enter the depth in inches.
- Read cubic yards, tons, and cubic feet instantly.
What it does – The calculator turns the dimensions of your river‑rock area (length, width, depth) into three practical measures: cubic feet, cubic yards, and approximate tons.
Why it matters – Knowing cubic yards helps you order the right amount from suppliers, while tons give you a weight estimate for delivery fees and equipment limits.
How to read the results – Cubic feet is the raw volume, divide by 27 to get cubic yards, then multiply cubic yards by 1.4 tons per yard to see the weight.
Example – A 10 ft × 5 ft area 4 in deep yields 16.7 ft³, 0.62 yd³, and about 0.86 tons. Use these numbers to place an accurate order and avoid costly over‑ or under‑ordering.
Pro tips
- Add 5‑10% extra for compaction and settling
- Round up to the nearest whole cubic yard for ordering
- Check your supplier’s tonnage conversion to avoid surprises
- Double‑check depth conversion from inches to feet
Real-life examples
- Homeowner landscaping a backyard patio with river rock
- Contractor installing a river rock drainage channel
- DIY gardener building a raised flower‑bed border
Case study
Maria wanted a 200‑sq‑ft patio with 3‑inch river rock. Using the calculator she entered 20 ft × 10 ft × 3 in and got 5 yd³ (≈7 tons). She ordered exactly that amount, saved $150 on excess material, and finished on schedule.