Interesting fact of the day, about 78% of the worlds GDP is produced in countries using the metric system. 22% of the worlds GDP is produced by the imperial system (the system the USA and UK and a few other countries use).
@freemo just the U.S., Liberia and Myanmar still use it officially.
@annecavicchi
Officially maybe, but if your in thr uk you will be using it for damn near everything.
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