How to use it
- Enter your project length (ft) and width (ft).
- Input desired gravel depth in inches.
- Click Calculate to get cubic yards, tons, and cubic feet.
This calculator tells you exactly how much gravel your project needs — no guesswork, no waste. Enter your length in feet, width in feet, and depth in inches, then get cubic yards, tons, and cubic feet instantly.
Why it matters: Ordering too little means delays and extra trips. Ordering too much wastes money. The result gives you three units so you can compare quotes from suppliers who price by the yard and those who sell by the ton.
How to read it: Cubic yards tells you volume. Tons uses the standard 1.4 tons per cubic yard estimate for typical gravel. Cubic feet is the raw volume before conversion. Use the ton figure when a supplier quotes per ton, and the yard figure when they quote per yard.
Pro tips
- Add 10% waste allowance for irregular shapes or spillage.
- Round up to the nearest half-yard — suppliers rarely sell partial increments.
- Order 5-10% extra for compaction; gravel settles after delivery.
- Common mistake: confusing depth in inches with depth in feet — always convert.
Real-life examples
- Resurfacing a 20x30 ft driveway with 3 inches of gravel.
- Filling a 10x15 ft garden bed to 4 inches depth.
- Calculating base gravel for a 12x24 ft patio project.
Case study
Sarah needed gravel for a 20×30 ft driveway at 3 inches deep. Without the calculator, she ordered 5 tons based on a guess — came up 40% short. Using it, she got 4.4 cubic yards and 6.2 tons, ordered once, and finished the job in a single delivery.