Official Eurozone Members

21 countries have adopted the euro (€) as their official currency through EU treaty. Listed alphabetically with year of adoption, previous currency, and conversion rate:

1. Austria — 2002 — Austrian schilling — 13.7603 ATS = €1
2. Belgium — 2002 — Belgian franc — 40.3399 BEF = €1
   
3. Bulgaria — 2026 — Bulgarian lev — 1.95583 BGN = €1
4. Croatia — 2023 — Croatian kuna — 7.53450 HRK = €1
5. Cyprus — 2008 — Cypriot pound — 0.585274 CYP = €1
6. Estonia — 2011 — Estonian kroon — 15.6466 EEK = €1
7. Finland — 2002 — Finnish markka — 5.94573 FIM = €1. Also used in: Åland Islands (AX)
8. France — 2002 — French franc — 6.55957 FRF = €1. Euro also used in overseas France: French Guiana (GF), Guadeloupe (GP), Martinique (MQ), Mayotte (YT), Réunion (RE), Saint Barthélemy (BL), Saint Martin (MF), Saint Pierre and Miquelon (PM). Note: France's Pacific territories — French Polynesia (PF), New Caledonia (NC), and Wallis and Futuna (WF) — use the CFP franc (XPF), not the euro.
9. Germany — 2002 — Deutsche Mark — 1.95583 DEM = €1
10. Greece — 2002 — Greek drachma — 340.750 GRD = €1
11. Ireland — 2002 — Irish pound (punt) — 0.787564 IEP = €1
12. Italy — 2002 — Italian lira — 1,936.27 ITL = €1
13. Latvia — 2014 — Latvian lats — 0.702804 LVL = €1
14. Lithuania — 2015 — Lithuanian litas — 3.45280 LTL = €1
15. Luxembourg — 2002 — Luxembourg franc — 40.3399 LUF = €1
16. Malta — 2008 — Maltese lira — 0.429300 MTL = €1
17. Netherlands — 2002 — Dutch guilder — 2.20371 NLG = €1. Note: the Netherlands' Caribbean special municipalities — Bonaire, Saba, and Sint Eustatius (Statia) — use the US dollar (USD). The autonomous countries of Curaçao and Sint Maarten use the Caribbean guilder (XCG), introduced 2025.
18. Portugal — 2002 — Portuguese escudo — 200.482 PTE = €1
19. Slovakia — 2009 — Slovak koruna — 30.1260 SKK = €1
20. Slovenia — 2007 — Slovenian tolar — 239.640 SIT = €1
21. Spain — 2002 — Spanish peseta — 166.386 ESP = €1. Also used in: Canary Islands (IC — unofficial ISO), Ceuta and Melilla (EA)

Countries and Territories Using the Euro Without EU Membership

These states and territories use the euro officially or by convention, but are not EU members and do not issue their own euro coins (or issue limited collector coins under special agreement):

• Andorra — adopted euro 2002 (formal monetary agreement 2011) — previously used both Spanish peseta and French franc; issues its own euro coins under EU agreement
• Kosovo — adopted euro 2002 (unilaterally) — previously used the Yugoslav dinar / Deutsche Mark; does not issue its own coins
• Monaco — adopted euro 2002 (formal monetary agreement) — previously used the Monegasque franc (pegged to French franc); issues its own euro coins
• Montenegro — adopted euro 2002 (unilaterally) — previously used the Yugoslav dinar / Deutsche Mark; does not issue its own coins
• San Marino — adopted euro 2002 (formal monetary agreement) — previously used the Sammarinese lira (pegged to Italian lira) at 1,936.27 per €1; issues its own euro coins
• Vatican City — adopted euro 2002 (formal monetary agreement) — previously used the Vatican lira (pegged to Italian lira) at 1,936.27 per €1; issues its own euro coins (highly collectible)