Of the countries that were eligible to join the first wave in 1999, Denmark decided in a referendum to not join. Sweden is obligated to join because it joined the EU after the Maastrict treaty but deliberately avoids the convergence criteria. The UK is not obligated to join and the current UK government seems to have no plans for a referendum. Slovenia, Malta and Cyprus have since joined the Euro and the other 14 EU countries are in various stages of convergence.
As of the 1st of January 2014, 18 of the European Union's 28 countries use the euro.
17 countries use the euro, as of 1/1/11They areAustriaBelgiumCyprusEstoniaFinlandFranceGermanyGreeceIrelandItalyLuxembourgMaltaNetherlandsPortugalSlovakiaSloveniaSpain16 countries now use the Euro. This will grow in the coming years.
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 European Union is an organisation that consists of 27 countries, 17 of which use the Euro. There are many other countries in Europe that are not members of the European Union and none of these use the Euro. So most European countries do not use it. See the related questions below.
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.
You are referring to the Euro. It is used in many countries in Europe, but most countries in Europe use their own currencies, not the Euro.
16 countries have adopted the Euro, 5 other countries use the Euro with formal agreements (these are places such as the Vatican). 6 other districts or countries use the euro without formal agreement; these include Andorra - which doesn't have an official currency, and Akrotiri and Dhakalia - a British sovereign base area in Cyprus. Countries outside of Europe have adopted the euro for international transactions (an example is Cuba).
The Euro is the same for all countries that use it, though one side of the coin is different in each country. All the notes are the same for all countries. You can still use those different coins in any of the countries that use the Euro. Not all countries in Europe use the Euro. There are over 50 countries in Europe. 28 of them are members of an organisation called the European Union. 18 of those 28 countries use the Euro as their currency.
16 countries have adopted the Euro, 5 other countries use the Euro with formal agreements (these are places such as the Vatican). 6 other districts or countries use the euro without formal agreement; these include Andorra - which doesn't have an official currency, and Akrotiri and Dhakalia - a British sovereign base area in Cyprus. Countries outside of Europe have adopted the euro for international transactions (an example is Cuba).
Not all European countries were convinced that the a single European currency would be viable without a complete political union of all the countries in the Euro-zone. They could not see how economic and budgetary discipline could be maintained across the political and banking system of the independent states and as they did not want to make Europe a single country, they refused to join the Euro. It would appear from the problems that have happened with the Euro, that they were correct.
16 countries have adopted the Euro, 5 other countries use the Euro with formal agreements (these are places such as the Vatican). 6 other districts or countries use the euro without formal agreement; these include Andorra - which doesn't have an official currency, and Akrotiri and Dhakalia - a British sovereign base area in Cyprus. Countries outside of Europe have adopted the euro for international transactions (an example is Cuba).
If you mean how many countries in the EU use the EU currency, the Euro, the answer is 17.