For this reason, BMI is not an indicator of obesity on its own. So, someone who has a very muscular physique (a body builder, for example) may have a high BMI without having excess fat. It is important to remember that BMI measurements do not make a distinction between whether you are male or female, whether you have a large or small body frame, whether you have high muscle mass and the areas in which fat isĭistributed around your body. 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). Therefore, BMI formula is the calculator's basis and CDC BMI-for-age growth charts are used for results interpretation. The amount of fat is changeable along with age and differs between girls and boys. 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 Our BMI calculator for kids is specially developed for children and teens from 2 to 19 years old. 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.
#Teenager bmi calculator how to#
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. Advertisement BMI formula for men and women Note that you can convert between units of height with our height converter or our cm to feet converter.
Z-Score BMI Z-Scores are also calculated for children and young adults aged 2 to 19. Health professionals can use the percentile score to categorize a child’s BMI to identify where the child falls in relation to other children of the same age and sex. If you need to convert between units of weight, use our kilos and pounds converter. BMI Percentile The BMI Percentile is calculated for children and young adults aged 2 to 19. 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 Body Mass Index is calculated using either the metric or imperial BMI formula.