Symbol and abbreviations. The SI symbol for the tonne is "t", adopted at the same time as the unit in 1879. Its use is also official for the metric ton in the United States, having been adopted by the United States National Institute of Standards and Technology.
In French and all English-speaking countries that are predominantly metric, tonne is the correct spelling. It is usually pronounced the same as ton / t ʌ n /, but when it is important to clarify that the metric term is meant, rather than short ton, the final "e" can also be pronounced, i.e. "tonny" / ˈ t ʌ n ɪ /.
››Definition: Ton. The short ton is a unit of mass equal to 2000 lb (exactly 907.18474 kg). In the United States it is often called simply "ton" without distinguishing it from the metric ton (or tonne) and the long ton —rather, the other two are specifically noted.
1 billion cubic feet NG = .026 million metric tons oil equivalent 1 billion cubic feet NG = .021 million metric LNG 1 billion cubic feet NG = 1.03 trillion Btus 1 billion cubic feet NG = .18 million barrels oil equivalent 1 million metric tons LNG = 1.38 billion cubic meters NG 1 million metric tons ...