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Construction Calculators

Crushed Stone Calculator

Calculate the cubic yards and tons of crushed stone needed for a path or base layer, including an allowance for compaction.

ft
ft
in
%
Loose crushed stone settles and compacts, so extra material is typically added to reach the target finished depth.
tons/yd³
Cubic yards needed —
Tons needed —
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About the Crushed Stone Calculator

This calculator estimates the crushed stone needed for a path or compacted base layer, adding extra material up front to account for the settling that occurs once the stone is compacted to its finished depth.

Formula: Cubic Feet = Length × Width × (Depth ÷ 12); Adjusted Volume = Cubic Feet × (1 + Compaction %); Cubic Yards = Adjusted Volume ÷ 27; Tons = Cubic Yards × Density

Loose crushed stone typically compacts down 15-25% of its original volume, so ordering extra up front avoids a second delivery. Base layers under pavers or driveways are commonly compacted in 4-6in lifts for the best density.

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