Our free BMI calculator app enables you to calculate your body mass index (BMI). The calculation is scientifically proven based on your age, your body weight in kilograms and your height, which gives you the best and most precise value. Regardless of whether you want to lose weight or gain weight, with our BMI calculator you can see what your ideal weight would be and how far you are still from your desired BMI. Under - enter new person - you can create several people so that you can work towa