The countries of the European Union use Euro as their currency. They are:
Germany
Belgium
Spain
France
Italy
Netherlands
Austria
Portugal
Finland
Greece
Slovakia
Malta
Cyprus
Slovenia
Denmark did not leave the EU. It is still a member. It does not use the Euro, but that does not mean it is not in the EU. Some other EU countries do not use the Euro. Only 19 of the 28 member countries use it.
As of the 1st of January 2014, 18 of the European Union's 28 countries use the euro.
Montenegro and Kosovo are countries that are not in the EU but use the Euro (Kosovo also uses the Serbian Dinar)
The currency is called the Euro, not the Euro Dollar. Not all countries in the European Union use the Euro. There are 28 countries that are members of the European Union. 18 use the Euro. 10 use their own currencies.
If you mean how many countries in the EU use the EU currency, the Euro, the answer is 17.
Euro is the official currency of the European Union. However, some countries inside the EU, decided to keep their traditionnal money (UK sill use the Pound). The Euro zone is the group of countries that had adopted the Euro (€) as their currency. On the 27 countries in the EU, 15 countries belong to the zone Euro. The other countries have either refused (UK, Sweden, Denmark....) adopting the Euro or are waiting for their Economies to be fit with the legal economics demandings defined by the EU.
The Euro is the official currency of the European Union, although not all Eu countries use it yet. Its lower denomination is the cent, of which there are 100 to 1 Euro.
the euro
Twelve of the 27 members of the EU use the Euro. The other countries have their own national currencies. Some of these shadow the Euro. These countries use the Euro as their currency: *Austria *Belgium *France *Germany *Greece *Ireland (Republic of) *Italy *Luxembourg *The Netherlands *Portugal *Spain *Slovenia These countries have a combined population of about 306 million.
The following countries use the Euro: Andorra (Non-EU) Austria Belgium Cyprus Finland France Germany Greece Ireland Italy Kosovo (Non-EU) Luxembourg Malta Monaco (Non-EU) Montenegro (Non-EU) Netherlands Portugal San Marino (Non-EU) Slovakia Slovenia Spain Vatican City (Non-EU)
There is no actual EU currency. 19 of the 28 countries use the Euro, so this is sometimes thought of as being the EU currency. The other 9 countries in the European Union do not use the Euro and continue to use their own currencies.
The euro is the unit of currency used by many EU member nations. It replaced each country's own currency, and as such the euro doesn't need to be exchanged when travelling between countries. The German mark, French franc, Austrian schilling, Irish pound, and Italian lire were all replaced.