BMI cut-offs for people of South Asian descent are different.īMI can be calculated using pounds and inches. 165 lbs x 703=28(64 inches) x (64 inches) To calculate an adult's BMI using the metric formulaĪ BMI between 25 to 29.9 is considered overweight. To calculate an adult's BMI using the English formulaįor example, a person who weighs 165 pounds and is 5 feet 4 inches tall has a BMI of 28. Or you can easily calculate it from the CDC's online tool. In other words, by plotting your child's BMI value into the CDC's BMI-for-age growth chart, you can determine if your child is underweight, within normal range, overweight, or obese. The BMI-for-age percentile is determined by comparing your teen's weight to that of other teens of the same age and sex. An additional step must be done after the BMI has been determined using one of the formulas below. For children and teens ages 2 to 19 years, the BMI varies by age and sex. Although it's not a perfect measure, it gives a fairly accurate assessment of how much of your teen's body is composed of fat. The amount of fat is the critical measurement.Ī good indicator of how much fat your teen carries is the body mass index (BMI). It includes considering the amount of bone, muscle, and fat in his or her body. Determining Body Mass Index for Teens What is body mass index?ĭetermining how much your teen should weigh is not a simple matter of looking at an insurance height-weight chart.

Children's bmi calculator stanford