Today (4 April, 2005) 1 Czech Koruna = $US0.0428
This value is the mid-market rate and will typically be the average value of the buying and selling rates. Buying rates are lower than selling rates in order for financial institutions to stay in business. You can access the current mid-market rate at the xe.com Universal Currency Converter.

Over the past five years, the Czech Koruna has increased in value against the U.S dollar by around 60%.

Currency conversion rates are not static but will vary according to the flow of imports and exports, the flow of capital, relative inflation rates etc. In addition, limits are often placed on exchange rate fluctuations according to government policies.