On Tons / Tonnes

It's common to get complaints about the unit Ton or Tonnes.

There are three measures which are similar sounding, and two even have the same name as each other.

• Ton (US Short Ton) = 2000 pounds = 907.1847 kg
• Ton (UK Long Ton) = 2,240 pounds = 1,016.047 kg
• Tonne (Metric Ton) = 1,000 kg = 2,204.623 pounds

I convert "Ton" into the US Short ton because doing a mental estimation for this value is hardest, and not only is it extremely difficult for a bot to know which one was meant, but often it's not even possible to know from the context which one the author meant.