This calculator provides BMI and the corresponding BMI-for-age percentile based on the CDC growth charts for children and teens (ages 2 through 19 years). Because of possible rounding errors in age, weight, and height, the results from this calculator may differ slightly from BMI.
This calculator is for children and teens between 2 and 20 years old. It allows you to figure out your body mass index (BMI) and see how your result compares to.
One place to start is by learning about body mass index, or BMI, a calculation that for teens to gain weight quickly — and see their BMI go up — during puberty.