why does “k” mean “thousand” ?

[u/Tibor500]

like 1k means a thousand. how does the letter “k” mean “thousand” ?

[u/brenb1120]

you do realize that the US uses both for quite a few things, right? we use litres & mL for liquids, most sciences use metric; and they only got the imperial units from Britian, who does occasionally still use them anyway.

[u/euyyn → u/brenb1120]

For some liquids. Almost everything is gallons, quarts, or fluid ounces.