TheFreeWindows Currency Converter is a free service, that will give you conversions between 150 currencies, including Euro and US Dollar, always updated with valid exchange rates. You can write the amount you are interested in (just the number) and select the currencies to convert. You may also be interested in this free Desktop Currency Gadget.
Exchange Rate: $1.3437
20 Euro = 26.87 U.S. Dollar
HTML code of this conversion:
<a href="http://www.thefreewindows.com/exchange-rates/index.php?N=20&F=EUR&T=USD">20 Euro to U.S. Dollar</a>
Download the Free Currency Gadget