Crushed Stone Coverage Calculator

How many cubic yards or tons of crushed stone for a driveway base, French drain, or landscape.

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How to use this calculator

  • Enter the area and depth.
  • Pick the stone size for your application.
  • Read both yards and tons; quarries usually price by ton.

About this calculator

Crushed stone is graded by size: #57 (¾") for driveways and general fill, #8 (⅜") for paver bases and drainage, #2 (2-3") for heavy fill under foundations, and crusher-run (variable size with stone dust) which compacts to a hard surface. Densities range 1.35-1.5 tons per cubic yard depending on grade.

Frequently asked

What size crushed stone for a driveway?+
#57 (¾") is the standard. For a more solid surface, top with crusher-run, which compacts to a hard layer.
How many tons of stone do I need per square foot?+
At 4 inches deep, about 0.017 tons/ft² with #57. So a 300 ft² driveway base needs about 5 tons.
Can I use crushed stone for a French drain?+
Yes — #8 stone is ideal because the small voids carry water without clogging. Wrap the trench in geotextile fabric to keep silt out.
Will crushed stone wash away in rain?+
Larger grades (#57 and up) stay put. Pea gravel and small chip will wash on slopes — install a paver edging or stone bordering.
Should I compact crushed stone?+
Yes for driveways and bases — use a plate compactor in 2-inch lifts. Decorative beds don't need compaction.

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