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9 Cubic Yards of Gravel in Tons

9 cubic yards of gravel in tons works out to about 12.6 tons using a planning weight of 1.4 tons per yard. Real loads land between roughly 11.7 and 13.5 tons depending on stone size, fines and moisture. That is about 25,200 pounds.

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The conversion

  • Yards × tons per yard: 9 × 1.4 = 12.6 tons.
  • Low end: 9 × 1.3 = 11.7 tons.
  • High end: 9 × 1.5 = 13.5 tons.

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

What 9 yards covers

DepthSquare feet
2 in1,458
3 in972
4 in729
6 in486

About gravel

Because ’gravel’ covers so many products, the weight per yard moves with stone size and how much fine material is in the pile. Rounded stone with no fines rolls under tires; crushed stone with fines locks together.

Hauling 9 yards

At about 12.6 tons, this is roughly a tandem-axle 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 gravel 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.

Where gravel fits

Best suited to:

  • Rural driveways and lanes where low upfront cost matters
  • Drainage areas and around downspouts
  • Temporary access while a site is under construction

Less suited to:

  • Steep slopes, where loose stone washes downhill
  • Spots plowed often, since plows push gravel into the lawn
  • Areas next to doors, because stone tracks inside

Quick reference numbers

  • Per inch over 100 sq ft: about 0.43 tons of gravel (0.31 cubic yards).
  • Per inch over 1,000 sq ft: about 4.3 tons.
  • Another size for comparison: a 10x20 area at 3 inches takes about 2.6 tons.
  • Weight used here: about 1.4 tons per cubic yard.

Where estimates go wrong

  • Ordering exactly the math. Uneven ground and spillage nearly always need a little more than the flat calculation.
  • Mixing up cubic yards and tons. Yards are volume, tons are weight; convert with the product’s weight per yard.
  • Assuming every supplier uses the same weight. Two yards selling the same product name can quote different tons per yard.
  • Ignoring the base. A thin surface layer over soft soil fails early no matter how much material is on top.

Questions people ask

How many tons is 9 yards of gravel?

About 12.6 tons, with a typical range of 11.7 to 13.5.

How many pounds is 9 cubic yards of gravel?

About 25,200 pounds.

How much area does 9 yards of gravel cover at 4 inches?

About 729 square feet.

Why does gravel 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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