The tonne (/tʌn/ (listen) or /tɒn/; symbol: t) is a metric unit of mass equal to 1,000 kilograms.[1] It is also referred to as a metric ton.[2][3] It is equivalent to approximately 2,204.6 pounds;[4] 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.

A one-tonne (1,000 kilogram) concrete block
General information
Unit systemNon-SI unit accepted for use with SI
Unit ofMass
In SI base units:1 t = 1,000 kg = 1 Mg