[vablings]

The UK uses miles and miles per (UK) gallon. We talk in feet, inchs lbs and stone for weight. But when it comes to engineering works it is ALL now in metric aside from the older builder, all of my schoolwork was in metric, and we never dealt with the hellish conversions it was all SI units, and we just had to know maybe one or two magic constants in physics and chemistry (molar and something else to do with joules in bond enthalpy)

I worked as an engineer and the only drawings specified in imperial were pre 1970s and all the CNC controls are programed in mm feed rates in mm/rev or mm/min