DeskCalc includes a currency converter with 170 currencies updates on a daily basis. Not much to say about, how to use it, because it's really simple. Enter your numbers, do your calculations and at any time, start a currency convertion and add the result to your tape. If you need rates from last week or last year, press CTRL+W to start the enhanced currency calculator
Once you are in, you can choose from using the latest rate available, an average of a specific month or any day in the past back to 1999.
Rates are actualized daily, if automatic updates are enabled. Otherwise update on your own with a single click.