BMI Calculator for Children & Teens
For children and teenagers (ages 2β19), BMI is interpreted by age- and sex-specific percentiles rather than the adult cut-offs. This calculator shows the BMI value and explains how a clinician reads it against growth charts.
Quick answer
For ages 2β19, BMI is interpreted using age- and sex-specific percentiles on a growth chart, not the adult cut-offs. This tool gives the BMI value; a clinician reads it against the chart.
Enter the childβs details
Medical disclaimer: This is general health information, not medical advice. It does not diagnose or treat any condition, and the results are estimates based on public reference formulas. Always consult a qualified doctor about your individual health. If you think you may have a medical emergency, contact your local emergency services immediately.
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