Tonne, Metric unit of mass equivalent to 1,000 kilograms.
The tonne ( (listen) or in Australia; symbol: t) is a metric unit of mass equal to 1,000 kilograms. It is commonly referred to as a metric ton in the United States. It is equivalent to approximately 2,204.6 pounds; 1.102 short tons (US) and 0.984 long tons (UK). The official SI unit is the megagram (symbol: Mg), a less common way to express the same mass.
Symbol and abbreviations
The BIPM symbol for the tonne is t, adopted at the same time as the unit in 1879.
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