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In Britain for example, prior to the introduction of the SI system, the ton that was used was equal to 2240 pounds (1016kg), and since this value is very close to actual metric tonne (1000kg), people felt very little difference between the earlier ton and the metric tonne.
There are three types of ton- long ton, short ton and metric tonne. Please select a more specific unit. The pound is a measurement of mass used in the imperial system, and is accepted on a day-to-day basis as a unit of weight (the gravitational force acting on any given object). This site is owned and maintained by Wight Hat Ltd.