Your BMI, or Body Mass Index, is determined in Wii Fit by a formula comparing your weight and height. You'll even be asked for variables such as the weight of your clothes, so Wii Fit can provide you with an accurate measurement. Once your BMI is displayed, you'll have the option of seeing your weight as well, but that's completely up to you. In fact, you can even protect your information from other users with a private PIN number.

The body mass index (BMI), or Quetelet index, is a controversial statistical measurement which compares a person's weight and height. Though it does not actually measure the percentage of body fat, it may be a useful tool to estimate a healthy body weight based on how tall a person is. Due to its ease of measurement and calculation, it is the most widely used diagnostic tool to identify weight problems within a population, usually whether individuals are underweight, overweight or obese. It was invented between 1830 and 1850 by the Belgian polymath Adolphe Quetelet during the course of developing "social physics".[1] Body mass index is defined as the individual's body weight divided by the square of his or her height. The formulae universally used in medicine produce a unit of measure of kg/m2. BMI can also be determined using a BMI chart, which displays BMI as a function of weight (horizontal axis) and height (vertical axis) using contour lines for different values of BMI or colours for different BMI categories.

Warning Edit

For players under 20 years of age: The BMI assessment in Wii Fit is designed for adults, not for players between ages 2 and 19. However, players ages 2 - 19 can get a BMI measurement for informational use only.

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