Pronunciation change

Noun change

Singular
tonne

Plural
tonnes

  1. A tonne, also called a metric ton, is an unit of mass that weighs exactly 1,000 kilograms. It is a little different from the US short ton (2,000 pounds or about 907 kilograms) and the British long ton (2,240 pounds or about 1,016 kilograms).

See also change