From
ton (US)US Ton
The US short ton equals 2000 pounds or 907.18474 kilograms. It is the standard tonnage unit in the United States for freight, coal and industrial weights. It is 9.3% smaller than the metric ton โ a meaningful gap in large-volume contracts.
Real-world: Max legal gross weight for a US 18-wheeler is 40 short tons (36.3 t). US coal output is quoted in short tons.
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