Full name: metric tonne
Plural form: tonnes
Alternate spelling: metric tonnes
Category type: weight
Scale factor: 1000
The SI base unit for mass is the kilogram.
The SI derived unit for weight or force is the newton.
1 kilogram is equal to 0.001 tonnes.
Valid units must be of the weight type.
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A tonne (also called metric ton) is a non-SI unit of mass, accepted for use with SI, defined as: 1 tonne = 1000 kg (= 106 g).