@jym626 Somehow centimetering along doesn’t have the same ring to it. 
Oddly watching the BBC I have heard some use miles for distance at times.
And while the big liter bottles are in metric, the smaller bottles and cans are still in oz.
Yes, when we visited England we were surprised that all the highway signs referred to miles, not kilometers.
Not that surprising. After all, they also drive on the wrong side of the road. =))
Plus in the quintessential pub, one still orders a pint (or a half) of beer. But here again, liquor is dispensed in ml’s.
And many male Brits still give their weight in stones.
A gallon may be 4.54609 liters or 3.785411784 liters depending on where you are.
And then there is the imperial gallon!
And not to be overlooked is a measure used by MIT: the smoot.
That’s the 4.546 liter one. 
Actually I believe it was the car industry that kept us from metric system because of all the tooling