Nowadays financial instruments play an important role in human lifestyle. By surveying the evidence on financial literacy levels around the world, results show that improving financial literacy level of individuals will effect on the financial deals as well as social welfare. In order to introduce, measure and represente new methods of improving financial literacy, comprehensive national initiatives and programs funded by the World Bank and other donors have sprung up around the world. In this survey we measured financial literacy level of Tehran households and its determinant factors by the use of questioner. 410 households were randomly selected to participate in the survey. The results indicate that financial literacy of selected individuals is not desirable although interested on using financial advice and having family financial advisor. Other factors (such as age, generation, education level, revenue level, wealth accumulation level, education field and location), surveyed as a separate assumption to the financial literacy of Tehran households. Their relation with financial literacy were confirmed and learning programs and introducing by mass Medias are our offers for the first step.