Currency Converter for Mac gives you access to up-to-date conversion rates, so you can perform currency calculations instantly anytime you need. Convert between multiple currencies at the same time, and open as many windows as you need to stay on top of all of your required transactions.
This program runs on the dashboard, and each conversion window you open contains spots for up to four different currencies. There is a huge list of currencies to choose from, and you can opt to show the currencies by name or by code. You can also sort by name or code, and currencies can be grouped by region or alphabetically. To access the Preferences screen, click the icon in the lower right-hand corner to flip the window over, and then flip back when you're done. The flag of the country that the chosen currency comes from is shown next to the currency in each window.
The interface for Currency Converter is highly intuitive, making for a quick and convenient process anytime you need to use the app. It's free, offers a huge list of currency options, and provides accurate conversions between all types of currencies.