Tonne

This article is about the metric unit of mass. For other ton units, see Ton. For other uses of tonne, see Tonne (disambiguation). For other uses of "megagram", see Megagram (geometry).
"Gigatons" redirects here. For the album by Pearl Jam, see Gigaton.
Tonne
Megagram
A one-tonne (1000-kilogram) concrete block
General information
Unit systemNon-SI
Unit ofmass
Symbolt
Mg
In SI units:1000 kg

The tonne (/tʌn/ ⓘ or /tɒn/; symbol: t) is a unit of mass equal to 1,000 kilograms. It is a non-SI unit accepted for use with SI. It is also referred to as a metric ton in the United States to distinguish it from the non-metric units of the short ton (United States customary units) and the long ton (British imperial units). It is equivalent to approximately 2,204.6 pounds, 1.102 short tons, and 0.984 long tons. The official SI unit is the megagram (Mg), a less common way to express the same amount.