Reference: The practical guide: identification, evaluation, and treatment of overweight and obesity in adults - National Institutes of Health (NIH), National Heart, Lung, and Blood Institute (NHLBI). Using a BMI calculator such as the one on this page, you enter your weight and height measurements.īelow are the BMI classifications for men and women established by the World Health Organization (WHO) and endorsed by leading organizations of The body mass index calculator measurement is the calculation of your body weight in relation to your height and is commonly used as an indicator of whether you might be in a risk category for health problems caused by your weight. Interactive BMI chart is also available to use. Learn more about how to use these formulae with our in-depth article on the BMI formula. The official formula for BMI was devised in the 1830sīy Belgian mathematician Adolphe Quetelet. Note that you can convert between units of height with our height converter or our cm to feet converter. Divide your weight (kg) by your height (m).Multiply your answer from part 2 by 703.Divide your answer from part 1 by your height again.Divide your weight (lb) by your height (in).If you need to convert between units of weight, use our kilos and pounds converter. Use these, you ensure that your units are in the same unit system (metric or imperial) and the correct corresponding unit. If you wish to calculate your BMI manually rather than using the BMI calculator, I've included some simple instructions and formulae below. With the imperial BMI formula, you then multiply the resulting figure by 703. In both cases, you divide your weight by your " About Child and Teen BMI," Centers for Disease Control and Prevention.Body Mass Index is calculated using either the metric or imperial BMI formula. ![]() " Healthy Weight," Centers for Disease Control and Prevention." Body Mass Index," Wikipedia, The Free Encyclopedia.Maximum weight (kg) = 24.9 × height 2 (m) Minimum weight (kg) = 18.5 × height 2 (m) To calculate your normal weight range use the following: If you are concerned about your weight, it is best to consult with your doctor or healthcare professional. BMI is one of several tools used to assess a person's weight and overall health. Keep in mind that BMI is a ratio between height and total body weight - it does not differentiate between weight from muscle and weight from fat, nor does it consider an individual's body frame type. Children and adolescents are not evaluated using these thresholds but are evaluated relative to others of the same age and gender.For example, in Singapore and Hong Kong a BMI of 23.0 is considered overweight, whereas in the United States a BMI of 25 is considered overweight. In many Southeast Asian countries, the thresholds for the overweight and obese categories tend to be lower.Divide weight by total inches squared and multiply the result by 703.Īlthough BMI is calculated the same way worldwide for all ages, the way an individual's BMI is interpreted depends on location and the person's age. What is his BMI?įind total inches by multiplying 5 * 12 and add 10. Stanley weighs 184 lb and is 5 feet, 10 inches tall. Matilda weighs 64 kg and is 1.9 meters tall. In US units, where weight is in pounds and height is in inches, divide weight by inches squared. Using metric units, where weight is in kilograms and height is in meters, divide weight by meters squared. Cut-off points for specific international subpopulations may vary.ĬDC Female BMI Growth Chart How to Calculate BMI ![]() Wikipedia listsĪlternative BMI ranges and categories for specific Asian populations. These ranges typically apply to North American and Eurpoean populations. The CDC and WHO use the BMI range charts below to evaluate the weight of adults aged 20 and over given his or her height. BMI also enables health professionals to discuss bodyweight objectively with their patients. The Centers for Disease Control (CDC) and the World Health Organization (WHO) recognize that people who are overweight or underweight are at higher risk for certain health conditions. Numeric BMI values correspond to weight categories including underweight, normal, overweight and obese.īMI is used as an indicator of the relative healthiness of a person. It is calculated as kg per square meter or pounds per square inch of height. The body mass index or BMI is a ratio of mass to height. See additional BMI formulas below for accurate calculations in metric or imperial units.
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