The Metric System

There's officially metric in some countries where it is almost, but not quite, reality.
The Brits didn't give up selling petrol in both liters and gallons sometime after 1990..LOL
And the last time I was there, the motorways were still MPH.
You can be sure that beer will always be in Imperial Pints, to the mark!
and go ask a Brit how much they weigh...