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12 Cubic Yards of Asphalt Millings in Tons

12 cubic yards of asphalt millings in tons works out to about 15.6 tons using a planning weight of 1.3 tons per yard. Real loads land between roughly 14.4 and 16.8 tons depending on stone size, fines and moisture. That is about 31,200 pounds.

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The conversion

  • Yards × tons per yard: 12 × 1.3 = 15.6 tons.
  • Low end: 12 × 1.2 = 14.4 tons.
  • High end: 12 × 1.4 = 16.8 tons.

If your supplier quotes a different weight per yard, multiply by theirs.

What 12 yards covers

DepthSquare feet
3 in1,296
4 in972
6 in648

About asphalt millings

Millings vary by source: some loads are fine and uniform, others carry chunks. Ask the supplier for a screened product if you want a smoother finish, and check local rules, since some areas restrict their use near water.

Hauling 12 yards

Plan the delivery around 15.6 tons: one tandem in most areas. A pickup is a poor fit for anything past a fraction of a yard; see how much gravel a half-ton pickup can carry.

Before you order

  • Confirm whether the yard prices asphalt millings by the ton or by the yard.
  • Add about 10 percent for compaction and uneven ground.
  • Clear a firm spot for the truck to dump.

The volume and tonnage calculator converts any area and depth into yards and tons.

Good and poor uses for asphalt millings

Best suited to:

  • Rural driveways and farm lanes
  • Parking areas where a dust-free surface is wanted
  • Low-cost base under a future paved surface

Less suited to:

  • Areas near wells or streams where local rules limit them
  • Decorative or barefoot areas
  • Jobs needing a uniform, clean look

Quick reference numbers

  • Per inch over 100 sq ft: about 0.40 tons of asphalt millings (0.31 cubic yards).
  • Per inch over 1,000 sq ft: about 4.0 tons.
  • Another size for comparison: a 12x24 area at 4 inches takes about 4.6 tons.
  • Weight used here: about 1.3 tons per cubic yard.

Mistakes that throw off the order

  • Skipping drainage. Water sitting under any surface softens the base and leads to ruts and potholes.
  • Mixing up cubic yards and tons. Yards are volume, tons are weight; convert with the product’s weight per yard.
  • Using inches as if they were feet. Depth has to be divided by 12 before you multiply; skipping that step inflates the order twelvefold.
  • Forgetting that compaction shrinks loose material. A loose 4-inch spread of a dense-graded stone may finish closer to 3 inches after rolling.

Questions people ask

How many tons is 12 yards of asphalt millings?

About 15.6 tons, with a typical range of 14.4 to 16.8.

How many pounds is 12 cubic yards of asphalt millings?

About 31,200 pounds.

How much area does 12 yards of asphalt millings cover at 4 inches?

About 972 square feet.

Why does asphalt millings weight vary?

Stone size, the share of fines and moisture all change how much a yard weighs.

Is it better to buy by the ton or the yard?

Either works; just convert with the supplier’s own weight per yard so the two quotes compare fairly.

Related guides

Open the volume and tonnage calculator → Asphalt tonnage calculator →

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