Crushed Stone Calculator
A crushed stone calculator finds how much crushed stone you need by multiplying area by depth, converting to cubic yards, then to tons. Crushed stone is angular and locks together, making it ideal for driveways, bases and drainage. Enter your dimensions below for cubic yards, tons and cost.
crushed stone density ~1.35 tons per cubic yard.
- Tons
- 0
- Estimated cost
- $0.00
Enter your dimensions to see the result.
Estimate only. Material yields and prices vary by supplier and region; confirm before ordering.
How Much Crushed Stone Do You Need?
To find how much crushed stone you need, multiply area by depth for cubic feet, divide by 27 for cubic yards, and multiply by about 1.35 for tons. A 30 by 12 foot driveway at 4 inches deep is 120 cubic feet, about 4.44 cubic yards, or roughly 6 tons. The calculator handles this and lets you add waste, which matters because crushed stone compacts as it is laid.
What Size Crushed Stone Should You Use?
Crushed stone comes in grades by size. A coarser base stone (often called crusher run or a number 2 stone) goes underneath for structure, and a finer stone tops it for the surface. Driveways usually combine both in layers. The calculator sizes a single layer at a time, so run it once per layer and add the results for a full multi-layer driveway.
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Frequently asked questions
- How many tons of crushed stone do I need?
- Multiply your cubic yards by about 1.35 to get tons. A 4.44 cubic yard driveway, for example, needs roughly 6 tons of crushed stone.
- How much crushed stone for a driveway?
- A 30 by 12 foot driveway at 4 inches deep needs about 4.44 cubic yards, or 6 tons. Driveways are often built in layers, so calculate each layer separately.