BMI is the abbreviations of Body Mass Index, an estimate of obesity determined by body weight and height. Weight (in kilograms) divided by height (in meters) squared (kg/m2). It is an adjusted ratio of weight to height; used to define "overweight”; a ratio of body weight and height that is related to total body fat.

In the psychology context, BMI stands for Body Mass Index, which is a measure of body fat based on height and weight. It is commonly used to assess a person's overall health and risk for various medical conditions.

BMI is calculated by dividing a person's weight in kilograms by their height in meters squared. The resulting number can then be compared to standard BMI ranges to determine whether a person is underweight, normal weight, overweight, or obese.

Here are the standard BMI ranges and their corresponding categories:

  • BMI below 18.5: Underweight
  • BMI between 18.5 and 24.9: Normal weight
  • BMI between 25 and 29.9: Overweight
  • BMI of 30 or higher: Obese

Here are some examples of how BMI can be used in psychology: