Application by calculating DNM (maximum heart rate) which is useful to know the maximum limit of the pulse or heart rate in exercise. Benchmark exercise is the maximum heart rate is calculated in minutes. By knowing the DNM (maximum heart rate) then do not excessive exercise. The formula to calculate DNM (maximum heart rate) is 220-age. In this application, the user enters data such as name and age. Then clicking on the button, so it would appear the data is a maximum pulse rate. This application, to provide data storage features by clicking on the save button after pressing process. To view the data already stored then simply push the button on the screen calculation results DNM (maximum heart rate).