While BMI is an important indicator of healthy growth and development, BMI is not a perfect measure of body fat. Any one measurement, taken out of context, can give you the wrong impression of your child's growth. It's important to look at the BMI as a trend instead of focusing on individual numbers.
Obese: BMI is at or above the 95th percentile for age, gender, and height.Overweight: BMI is at or above the 85th percentile but less than the 95th percentile for age, gender, and height.Healthy weight: BMI is equal to or greater than the 5th percentile and less than the 85th percentile for age, gender, and height.Underweight: BMI is below the 5th percentile age, gender, and height.The categories that describe a person's weight are: Your doctor can help you figure out whether this weight gain is a normal part of development or whether it's something to be concerned about. It's common for kids to gain weight quickly - and see their BMI go up - during puberty. And a kid with a small frame may have a normal BMI but still can have too much body fat.īMI is less accurate during puberty. Kids can have a high BMI if they have a large frame or a lot of muscle, not excess fat. For example, if a child has a BMI in the 60th percentile, 60% of the kids of the same gender and age who were measured had a lower BMI.īMI is not a direct measure of body fat. What Do the Figures Mean?īMI percentiles show how a child's measurements compare with others the same gender and age. Over several visits, the doctor is able to track your child's growth pattern.Īlthough not a perfect measure of body fat, BMI helps identify children who are gaining weight too slowly or too quickly. Because BMI changes with age, doctors plot children's BMI measurements on standard gender-specific growth charts. Starting when your child is 2 years old, the doctor will determine BMI at all routine checkups. To view your childs BMI on a UK standard chart. Find out if your child is in a healthy BMI range using the calculator below. But it's also important to talk to your child's doctor to help understand the results. In adults, if your BMI is above 25, but below 30 you are overweight, 30 or above and you are obese. After the BMI is calculated, it is expressed in relation to a percentile a child fits into according to their age group and gender. You can use the KidsHealth BMI calculator below to find your child's BMI. Your doctor can check your child to make sure that he or she is growing as expected.Body mass index (BMI) is a calculation that uses height and weight to estimate how much body fat someone has. If you are concerned about your child's growth, talk to your doctor. Healthy growth is different for every child, and your child will grow at his or her own pace. Taking several BMI measurements over time can help you and your doctor assess your child's growth. For example, if your child is at the 25th percentile, it means that out of 100 children who are the same gender and age, 25 are your child's size or smaller, and 75 are bigger than your child. The percentile is the number that ranks your child's BMI among the BMIs of children of the same gender and age. On your child's growth chart, mark your child's percentile.Follow the curved line to the right to estimate the percentile. Your child's percentile will be in one of the shaded areas. Find the point where BMI and age meet.Find your child's age on the bottom of the chart.Find your child's BMI on the side of the chart.Use this tool to find your child's BMI about once a year or as often as your doctor suggests.Then keep the chart so that you can track your child's percentile for several years. After you print a boy or girl growth chart, use the steps that follow to find the percentile.
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