We are trying to get along. We are already speaking English, which is a massive step in your direction. US commenters and posters don't even bother to convert to kilometres or something. Or the worst: write about something that happened in AK as if everyone knows postal shortages of the US.
If it makes it any better youre more likely to get an American who can convert Miles into Leagues before they even think about kilometers. We dont really use metric for anything, unless youre military or something.