Lots of information about foreign exchange including a converter. The converter lets you convert between any two of the worlds currencies. For example you can determine how many Yen, Pounds, or Krone you can get for your Dollar, Peso, or Franc? You can find the conversion rate for any day or range of days from January 1990 through yesterday. There are also links to a large number of currency trading information sites.
Open Access
https://www1.oanda.com/currency/converter/