Hi. In addition to the above suggestions, I have found the following webpages for your references: 1) en.wiktionary.org/wiki/nicht_die_Bohne 2) www.wordreference.com/ende/care 3) forum.wordreference.com/showthread.php?t=1297907 4) dict.leo.org/ende? search=don't+care (be sure to delete the space after the question mark when pasting on address bar) I also remember a phrase of "sich(Dat) keine Sorgen machen". However, I do not know if this actually means "not to worry" rather than "not to care". Anyway, take care. / Mach's gut!

Auch je nach dem Zusammenhang: - Es geht mich nicht an - Es kümmert mich nicht. - Es ist mir gleichgültig.

"Das ist mir egal." (Das) "Ist mir egal." "Egal!" "Na und?" = So what?

I don´t care. = Ist mir egal. = 난 상관 없어.