I was about to comment on this in the other thread 
When I was in the US Army in the 70s, we used metric almost exclusively, except for weight/mass – I don’t know if the US Navy did the same. Most of us got pretty good at translating back & forth (truck speedo in mph, road signs in kmph, etc.), but these days the media seem to have forgotten their earlier enthusiasm for metric and require “english measure” in every article to be read by the public - including some ludicrous translation silliness (“the racer’s top speed of 186.4114 mph…”).