Travelmath provides an online currency exchange rate calculator to help you quickly convert world currencies. You can convert between US dollars (USD), euros (EUR), British Pounds (GBP), and many more units like ISK to XMR. Simply enter the name of the currency or an abbreviation to get the conversion rate. Please note that results are provided for information purposes only, and are not guaranteed for actual bank transactions.
If you're trying to calculate the cost of travel, you can check out the driving cost calculator.