is it true that 12 000 South Korean won = 12.86400 U.S. dollars?

Question

also is 5000 Japanese yen = 41.25 U.S. dollars or could u tell me a place were i can learn more about currency conversion. plz and ty

Answer 1

Yes, the exchange rates you quote are very close to correct.
Here is a link to the universal currency converter on www.xe.com, which will allow you to calculate exchange rates of any currency in terms of any other currency:

http://www.xe.com/ucc/full.php

Answer 2

both yen and won are fluctuate, so it can be changed everyday. but you can always convert those as 1000won=100yen=1$. Only really roughly tho.