BMI= Weight in Kilograms (Height in Meters) x (Height in Meters)ĭivide that answer by your height in meters again.įor example, a person who weighs 99.79 Kilograms and is 1.905 Meters tall has a BMI of 27.5. BMI= Weight in Pounds x 703 (Height in Inches) x (Height in Inches)ĭivide that answer by your height in inches.ĭivide that answer by your height in inches again.īMI can be calculated using kilograms and meters. 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). BMI Z-Scores help health professionals to monitor weight changes in children and adolescents especially if they are in the underweight or overweight percentiles. This number indicates how much higher or lower your BMI is on a standard growth chart. It includes considering the amount of bone, muscle, and fat in his or her body. BMI Z-Scores are also calculated for children and young adults aged 2 to 19. 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.
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