In 2022, Croatia finally met all the criteria and thus began the last stage of the process of adopting the euro.The process of adopting the euro involves a large number of stakeholders, ranging from public authorities, regulators, banks, and entrepreneurs to citizens. Prior to the euroization process, each country conducts an analysis of the benefits and costs and makes a decision on the justification of joining the eurozone.There are numerous reasons for accepting the euro as the official currency, and one of the main arguments for it is the stability of the currency.The use of a common currency promotes greater European integration and better utilization of the market potential.A stable currency represents the country as less risky and therefore more suitable for foreign investments.Croatia, as one of the highly euroized countries, will benefit the most from eliminating currency risk, and the majority of the benefits from adopting the euro will be permanent, while the costs will mainly be one-time in nature and of lesser overall importance. The major cost or loss that the Republic of Croatia will incur with the introduction of the euro is the complete loss of independent monetary and exchange rate policies.In addition to the loss of monetary policy, there is also an increase in the price level due to conversion, the risk of excessive capital overflow and accumulation of macroeconomic imbalances, one-time costs of conversion, one-time costs of the CNB's accession to the Eurosystem and participation in providing financial assistance to other member states. Through this work, research was conducted on the impact of the euro on the standard of living of the citizens of the Republic of Croatia.