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18 Cubic Yards of Asphalt Millings in Tons

18 cubic yards of asphalt millings in tons works out to about 23.4 tons using a planning weight of 1.3 tons per yard. Real loads land between roughly 21.6 and 25.2 tons depending on stone size, fines and moisture. That is about 46,800 pounds.

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The conversion

  • Yards × tons per yard: 18 × 1.3 = 23.4 tons.
  • Low end: 18 × 1.2 = 21.6 tons.
  • High end: 18 × 1.4 = 25.2 tons.

Quarries can tell you the weight per yard for their own product; use it if you have it.

What 18 yards covers

DepthSquare feet
3 in1,944
4 in1,458
6 in972

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 18 yards

At about 23.4 tons, this is more than one typical truckload. 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.

When to choose asphalt millings

Works well for:

  • 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 15x30 area at 2 inches takes about 3.6 tons.
  • Weight used here: about 1.3 tons per cubic yard.

Mistakes that throw off the order

  • 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.
  • Ordering exactly the math. Uneven ground and spillage nearly always need a little more than the flat calculation.
  • Measuring only the main rectangle. Aprons, turnouts and curved edges add real square footage.

Questions people ask

How many tons is 18 yards of asphalt millings?

About 23.4 tons, with a typical range of 21.6 to 25.2.

How many pounds is 18 cubic yards of asphalt millings?

About 46,800 pounds.

How much area does 18 yards of asphalt millings cover at 4 inches?

About 1,458 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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