Banking industry has faced big changes since 1990 and the speed of these changes has been increased rapidly along with the development of communication facilities, globalization, deregulation, technological improvements and information technology advances, in particular.Profit making has been the main incentive for many institutions and the market experienced significant competition over the development of the active firms in this industry. The increased competition of the market has also another characteristic. As the firms are not the same in size and both big and small firms are doing business probably what makes these firms of all size survive in this industry is a good and reasonable profit.In order to investigate the performance of the banks, we will introduce some indexes and ratios to compare the selected banks with respect to their performance.There are other factors which can affect the compatibility using ratios (such as specialized business of the banks), but in sum, are used for comparison worldwide. Some standards have been introduced. In this article, a comparative approach of the relevant ratios among the banks of the selected countries will be carried out and then, some methods for better performance of the Interest-free banking will be introduced.