How to use it
- Enter length in feet.
- Enter width in feet.
- Enter depth in inches. The result appears instantly.
What it does – The calculator takes the length and width you enter in feet and the depth in inches, converts the depth to feet, then computes the total volume in cubic feet. It divides that number by 27 to give you cubic yards, the standard unit for ordering bulk gravel. Finally it multiplies the cubic yards by 1.4 US tons to show an approximate weight. Why it matters – Knowing the exact volume prevents ordering too little material, which can delay a driveway or patio, and avoids over‑ordering, which wastes money. How to read the results – Cubic yards is the amount you’ll order, tons helps you understand shipping weight, and cubic feet lets you compare with other projects. You can also copy the numbers into a spreadsheet to plan multiple beds.
Pro tips
- Add 5‑10% waste allowance for compaction and breakage.
- Round up to the nearest half‑yard or whole yard to avoid shortfalls.
- Order a little extra weight if the supplier charges per ton.
- Double‑check depth measurement; a 1‑inch error changes volume noticeably.
Real-life examples
- Planning a new backyard patio and need exact gravel volume.
- Estimating material for a driveway resurfacing project.
- Ordering gravel for a garden path to avoid multiple deliveries.
Case study
Mike needed a new driveway. He entered 30 ft × 12 ft × 4 in and the calculator returned 2.2 cubic yards (≈3 tons). He ordered 2.5 cubic yards, avoiding a costly shortfall and saving on excess material.