Find the coach online for your fitness!! Install the app and fill out the questionary form to check your Molecular change in your body. Graph also available for better visual and comperision of your previous readings. Just enter your sum of skinfolds and body weight. all the calculations are automatic. The body fat calculator can be used to estimate the total body fat based on specific measurements. This calculator is to be used once you have measured the skinfolds and body fat calipers that you will received in the mail with your kit.