Pedemy All toolsTap boy or girl and your child’s age. Then type the weight and height. The percentiles show up right away.
This calculator shows where your child's weight and height fall on standard growth charts. It is made for parents and caregivers who want to understand a measurement from a checkup or taken at home.
You choose boy or girl, enter the age in years and months, and add weight, height or both, in kilograms or pounds and centimeters or inches. Under 2 years the tool uses the WHO growth charts, which the CDC and AAP recommend for this age, and babies should be measured lying down. From 2 to 20 years it uses the CDC growth charts. With both weight and height entered, it also shows weight for length under 2 years, or BMI percentile from 2 years.
The result explains each percentile in plain words and flags values that may be worth discussing with your child's doctor, such as weight or height below the 2nd percentile under 2 years or below the 5th percentile after that, or a BMI in the overweight (85th to 95th percentile) or obesity (95th percentile and above) range. It reminds you that following one's own curve over time matters more than a single number.
A percentile compares your child with 100 children of the same age and sex. For example, the 30th percentile for weight means about 30 out of 100 weigh less. Any percentile between the 5th and 95th can be healthy if your child keeps following their own curve.
Under 2 years this tool uses the WHO growth charts, which the CDC and AAP recommend for this age. From 2 years it uses the CDC charts. For babies born early, use the age corrected for prematurity until about 2 years.
See the doctor sooner if your child crosses two major percentile lines, for example from the 50th to below the 10th, stops gaining weight or loses weight. The doctor looks at the whole growth curve, not one measurement.
Free to use on clinic, school, blog or hospital pages. Copy this code into your page: