CurrencyAide is a useful utility to help you with those sometimes difficult currency calculations when you are out amongst it all.
CurrencyAide allows you to choose your home or base currency, and a destination currency and shows you the conversion amounts for various home/destination amounts.
If the amount you require isnt displayed on the list of common amounts, you can easily enter your amount.
Never again be confused by how much an item an items value equates to in your home currency!