They are all close enough in mass for colloquial use though. It doesn't affect your understanding of this article if a ton / tonne is 1000 kg, 1016 kg, or 907 k

They are all close enough in mass for colloquial use though. It doesn't affect your understanding of this article if a ton / tonne is 1000 kg, 1016 kg, or 907 kg. I agree with the parent tho - let's just all start using metric :-)