Stone Calculator
Landscaping · Updated July 2026
Enter your area and depth to find how much crushed stone or landscape rock you need — in cubic yards and tons.
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Results
Estimates only. Add extra for waste and confirm with your supplier.
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How much stone do I need?
Multiply length × width × depth in feet, divide by 27 for cubic yards. Crushed stone weighs roughly 1.4 tons per cubic yard.
Estimating crushed stone
Measure area and depth, convert to cubic yards, and budget about 1.4 tons per yard. Use 2–3 inches for decorative beds and 4 inches or more for driveways and bases, compacting in layers for stability.
Picking a stone size
Larger decorative stone stays put on slopes; ¾-inch crushed stone with fines (like 21A/crush-and-run) compacts hard for driveways and bases. Landscape fabric underneath keeps stone from mixing into the soil.
How to use this calculator
- 1Measure length and width in feet.
- 2Choose your stone depth in inches.
- 3Read cubic yards and tons.
Frequently asked questions
How deep should crushed stone be?
2–3 inches for decorative beds; 4 inches or more for driveways and bases.
How much crushed stone do I need?
Multiply area by depth in feet, divide by 27 for cubic yards; expect about 1.4 tons per yard.
What stone is best for a driveway?
¾-inch crushed stone with fines (crush-and-run) compacts into a firm, stable driveway surface.
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