The UK uses miles. They mostly use the metric system, but there are a few cases where they use the imperial system (like distance)
The size difference is getting to me too lol
I used to drive a 200 mile round trip weekly to visit home while I was in college.
Houston to East Texas is a fun drive.
I had a german professor once remark to me about how different Americans are, like hundreds of miles is a day trip, hundreds of miles is a week long trip by car. Bet the trains are awesome though. Amtrak long distances seems way too expensive relative to my other options when factoring in time.