Crushed Stone Calculator

Get tons and cubic yards of crushed stone for a base or driveway.

Inputs
ft ×
ft
in
Results update as you type — no submit
ResultsLIVE
Tons to order
2.25 tons
= 2.04 t (metric)
Cubic yards
1.7 cu yd
≈ 1.27 m³
Cubic yards1.7 cu yd
Approx. weight4,500 lb ≈ 2.25 tons
Formula
volume = 15 × 12 × (3÷12) = 45 cu ft = 1.7 cu yd
weight = 1.7 cu yd × 1.35 tons/yd³ = 2.25 tons
Dense-graded crushed stone compacts; add 10% for a driveway base. Sold by the ton — confirm on the scale ticket.
Diagram — area planNTS
15′ 0″12′ 0″DEPTH: 3″CRUSHED STONE AREA · DASHED = EDGING
MeasureShedmeasureshed.com/calculator/crushed-stone-calculator
Crushed stone — material listUNITS: FT · SCALE: NTS
Inputs
Area15 × 12 ft
Depth3″
Waste+0%
Results
Tons to order2.25 tons
Volume1.7 cu yd
Weight4,500 lb
Area planDEPTH: 3″ · NTS
15′ 0″12′ 0″DEPTH: 3″CRUSHED STONE AREA · DASHED = EDGING
Shopping list
☐ 2.25 tons of crushed stone (1.7 cu yd)
Formula
volume = 15 × 12 × (3÷12) = 45 cu ft = 1.7 cu yd
weight = 1.7 cu yd × 1.35 tons/yd³ = 2.25 tons
Estimates for planning only — verify before purchaseSHEET 1 OF 1
How it works

Crushed stone — the dense, angular aggregate used under slabs, driveways, and patios — is quoted by the ton and by the cubic yard. This calculator finds both. It multiplies length by width for the area, multiplies by depth for a volume, and multiplies that volume by the weight per cubic yard to convert to tons. Depth in inches is divided by twelve so it lines up with the feet used for area.

The weight step uses a density of about 1.35 tons per cubic yard, the common figure for dense-graded crushed stone. Crusher-run and #57 stone sit close to this, but a wet or unusually fine gradation weighs more, so the delivered ticket is the number to trust.

Crushed stone is meant to be compacted, which is why a base course is built in lifts and tamped. A ten-percent waste allowance covers the volume lost to compaction and an uneven subgrade; leave it at zero only for a loose decorative fill.

Worked example
Base 15 ft × 12 ft · depth 3″
volume = 15 × 12 × (3 ÷ 12) = 45 cu ft = 1.67 cu yd
tons = 1.67 cu yd × 1.35 tons/yd³ = 2.25 tons
Questions from the yard
About 1.35 tons for typical dense-graded crushed stone — roughly 2,700 lb per cubic yard. Heavier, wetter, or coarser stone can run to 1.4 tons, so confirm the weight when the load crosses the scale.
Estimates for planning only — verify before purchase
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