How to use it
- Enter length in feet.
- Enter width in feet.
- Enter depth in inches.
- Click Calculate to see cubic yards, tons, and cubic feet.
What it does – The calculator converts the dimensions of a river‑rock area (length, width, depth) into three practical units: cubic feet, cubic yards, and approximate tons. Knowing cubic yards tells you how many bulk‑load bags to order, while the ton estimate helps you compare shipping costs or match supplier specifications. The result is instant, so you can size the material before you call a landscaper or place an online order.
How to read the numbers – The cubic‑feet value is the raw volume of your space. Divide by 27 to get cubic yards, the standard bulk‑order unit. Multiply cubic yards by 1.4 tons to see the approximate weight. Use these figures to avoid ordering too little (causing project delays) or too much (wasting money).
Pro tips
- Add 5‑10% extra for compaction and breakage.
- Round up to the nearest half‑yard when ordering bulk loads.
- If the supplier quotes by weight, convert cubic yards to tons using 1.4 tons per yard.
- Double‑check that depth in inches is converted to feet before calculating.
Real-life examples
- A homeowner landscaping a backyard patio wants to know how much river rock to order.
- A contractor preparing a drainage trench needs accurate weight for delivery quotes.
- A DIY gardener filling a raised bed with river rock for weed suppression wants the exact volume.
Case study
Sarah entered her 12‑ft by 8‑ft patio dimensions with a 3‑inch depth, got 0.33 cubic yards (≈0.46 tons), ordered just that amount, and avoided a costly over‑order that would have left her with excess rock.