Obesity > BMI - Body Mass Index
Body mass index, or BMI is the measurement of choice for many physicians and researchers studying obesity. BMI uses a mathematical formula that takes into account both a person's height and weight. BMI equals a person's weight in kilograms divided by height in meters squared. (Or, weight in pounds divided by height in inches squared, and multiplied by 704.5).
It is a measure of body weight relative to height. BMI can be used to determine if people are at a healthy weight, overweight, or obese.
You can find more calculations about BMI in our Weight Loss section
This is a very common method of evaluating individual people to see if they are under or overweight. It involves comparing their weight to their height by dividing the weight measurement (expressed in kilograms) by the square of the height (expressed in meters). A BMI of below 18.5 is underweight, between 18.5 and 25 is an indication of healthy weight, 25 to 30 is overweight, a BMI of over 30 is referred to as obese, over 35 is known as morbid obesity, and over 40 indicates extreme obesity.
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