The purpose of this study is to analyze the determinants of financial behaviors and subjective economic well-being in personal financial education through research targeted at adults. The results indicated by the research can be summarized as follows. First, there was a significant difference found in the changes of financial behaviors in accordance with the types of financial education programs, the time period, and the methods of financial education. Second, financial behaviors were higher when participating in profit financial education programs or in workplace financial education programs. Additionally, the increase was higher when participating in long-term programs. Third, the positive effects on subjective economic well-being were financial behaviors, participation in profitable financial education programs, unmarried and income level.