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The Currency Converter uses the European Central Bank foreign exchange rates to calculate the conversion of any amount of one currency into the equivalent amount of another currency.

Exchange Rate Calculation Source: European Central Bank

Euro foreign exchange reference rates Quote: "The reference rates are usually updated by 4 p.m. C.E.T. They are based on a regular daily concertation procedure between central banks across Europe and worldwide, which normally takes place at 2:15 p.m. CET."

The reference rates used on this website are updated by 11:15 AM EST, which is 4:15 PM CET.

These rates can be used for reference, say, for calculating currency exchange when traveling. For more exact daily market and investing rates you might try http://www.xe.com/.  For a greater number of available currencies try Google Currency Converter.

Converting from one currency to another is done by a ratio calculation using the starting value and the Euro Exchange Rates below for the currencies being compared. Converting from Currency 1 to Currency 2 we state: Value in Currency 1 is to Value in Currency 2 as Rate in Currency 1 is to Rate in Currency 2.

\[ \dfrac{Value1}{Value2} = \dfrac{Rate1}{Rate2} \]

solving for Value2

\[ Value2 = Value1 \times \dfrac{Rate2}{Rate1} \]

Example, 100.00 HKD Hong Kong Dollar is how much USD United States Dollar?

Let's assume our daily rates are HKD = 9.53 EUR and USD = 1.23 EUR. Converting we use:

\[ Value2 = Value1 \times \dfrac{Rate2}{Rate1} \] \[ Value2 = 100.00 \times \dfrac{1.23}{9.53} = 12.907 USD \]

Euro (base currency) exchange reference rates as of 10 June 2026.

Click on a currency name to get a table of exchange rates into and out of that currency.