FWIW if you're on a Mac, Spotlight will do simple unit conversions, so you can just cmd-space and do it in the popup without having to leave the page. That sai

FWIW if you're on a Mac, Spotlight will do simple unit conversions, so you can just cmd-space and do it in the popup without having to leave the page. That said yeah US units are absolutely brain-dead and confusing, how hard is it to put real units in parenthesis?