Yesterday's foray into calculating tax burdens in Canada led me into this amazing place, where you can find an on-line calculator for just about anything:
Martindale's Calculators Online Center
So now you can figure out your birthday in Mayan, Chinese, Hijri, Lufkan or Vietnamese. You can calculate blackjack odds. You can convert bra and panty sizes from US to European... etc. etc.
Umph.