1 Comparison tables of the different systems: Comparison table of ISO TR/11941, North Korean national system (1992), Revised Romanization, McCune-Reischauer, Yale (PDF file from UN Group of Experts on Geographical Names Working Group on Romanization Systems) Comparison table of IPA, Yale, McCune-Reischauer, Lukoff, South Korea Ministry of Education, ...
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). The kilogram or kilogramme, (symbol: kg) is the SI base unit of mass. A gram is defined as one thousandth of a kilogram.
A metric ton weighs 1,000 kilograms. A metric ton (t) is not part of the International System of Units but is approved for use. Ton can be spelled as tonne, which is the standard spelling in the metric system. Prior to metrication, the ton weighed 1,016 kilograms, or 2,240 pounds.