How to use it
- Enter length and width in feet, depth in inches.
- Click Calculate to see cubic feet, cubic yards, and tons.
- Use the results to order material or adjust dimensions.
Enter the length and width of the area in feet, then the depth of rock in inches. The calculator converts the depth to feet, multiplies the three dimensions to get cubic feet, then divides by 27 to show cubic yards. It also multiplies cubic yards by 1.4 to give an approximate tonnage. Knowing cubic yards helps you order the right amount of material from a supplier, while tons give you a quick shipping weight estimate. The results appear instantly, so you can compare quotes, adjust dimensions, or add a safety margin before you call a contractor. Use the numbers to fill out supplier forms or to budget the project accurately. You can also switch the view to see only tons if weight is your primary concern, and the calculator will keep the conversion precise each time you change a value.
Pro tips
- Add about 10% extra for breakage and compaction.
- Round up to the nearest whole yard when ordering to avoid short shipments.
- Convert depth inches to feet first if you prefer manual entry.
- Double‑check on‑site measurements to prevent ordering too little.
Real-life examples
- A homeowner planning a new garden pathway needs to know how much rock base to order.
- A contractor estimating fill material for a driveway wants quick yard and ton totals.
- A landscaper budgeting a rock mulch area for a commercial property needs instant volume calculations.
Case study
Sam measured a 12 ft × 8 ft patio and wanted a 4‑inch stone base. Using the calculator he saw the project required 3.6 cubic yards (≈5 tons). He ordered exactly that amount, avoided a $200 over‑order and finished on schedule.