Currency exchange is the trading of one currency against another.
The Need for Currency Exchange Currency exchange is necessary in numerous circumstances. Consumers typically come into contact with currency exchange when they travel. Consumers may also purchase goods in a foreign country or via the Internet with their credit card, in which case they will find that the amount they paid in the foreign currency will have been converted to their home currency on their credit card statement. Although each such currency exchange is a relatively small transaction, the aggregate of all such transactions is significant. Businesses typically have to convert currencies when they conduct business outside their home country.