A currency converter is software code that is designed to convert one currency into another in order to check its corresponding value. The code is generally a part of a web site and it is based on current market or bank exchange rates.

In order to convert one currency into another, a user enters an amount of money (e.g. '1000') and chooses the currency he/she wishes to check the monetary value of (e.g. 'United States Dollar'). After that, the user selects one, or sometimes several other currencies, he/she would like to see the result in. The application software then calculates and displays the corresponding amount of money. There are also sections on the site's calculator, news, rates and more