<p>Title says it all really.
Just wondering if there are any that I as a non-American would be unfamiliar with.</p>
<p>They usually give you conversions if you need them in the problem. They’ll have things like feet-inches and meters-centimeters in parenthesis. I can’t think of any you would need besides time (seconds-minutes-hours).</p>
<p>^
Also, 10 years=1 decade</p>