[TheLastFortnight]

I don't think it is something really related to Americans only, I mean there's a lot of people who aren't skilled in math to do the conversions and there's a lot of people who are lazy to do it, but it's too much to say most of them are Americans.

Maybe it has something to do with the base of unit and scales they use, in my country I use Celsius and Fahrenheit doesn't make any sense for me and I don't know how to do the conversion, really, haha. When they say a person is six feet tall it also doesn't make any sense too, here we say that person is 1.70 tall and etc.