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A metric ton is a unit of measurement based on the metric system, rather than the standard, or imperial, system more commonly used in the United States. It is known as a tonne in most other countries, and is equivalent to 1,000 kilograms. Strictly speaking, it is a megagram, being one million grams.
One metric ton (also known as a 'Tonne') contains 1000 kg, or 2204 pounds. There are two other types of ton: One Imperial ton (or British ton) equals 2240 pounds, or 1016.3 kg. One short ton contains 2000 pounds, or 907.4 kilogrammes.