BMI Kalkulator is a tool used to calculate an individual's body mass index based on their weight and height. It is a simple way to assess whether an individual's weight is healthy for their height. BMI is a commonly used measure of body fatness, although it has some limitations, such as not taking into account muscle mass, bone density, and body composition.

To use a BMI Kalkulator, you simply input your weight and height, and the calculator will provide a number that represents your BMI. Based on this number, you can determine whether you are underweight, normal weight, overweight, or obese.