CDC BMI Percentile (Ages 2–20)

Calculate and interpret BMI percentile for children and adolescents aged 2–20 years using CDC growth charts, classifying underweight, healthy weight, overweight, and obese categories.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Calculate and interpret BMI percentile for children and adolescents aged 2–20 years using CDC growth charts, classifying underweight, healthy weight, overweight, and obese categories

Each component has a specific meaning:

  • CDC growth charts — The cdc growth charts recorded for the scenario being assessed.
  • Classifying underweight — The classifying underweight recorded for the scenario being assessed.
  • Healthy weight — The healthy weight recorded for the scenario being assessed.
  • Overweight — The overweight recorded for the scenario being assessed.
  • Obese categories — The obese categories recorded for the scenario being assessed.

Note: Interpret the cdc bmi percentile result against the thresholds and context described above.

How to Use

Enter the CDC growth charts, classifying underweight, healthy weight, overweight, obese categories for the scenario you are assessing. Calculate and interpret BMI percentile for children and adolescents aged 2–20 years using CDC growth charts, classifying underweight, healthy weight, overweight, and obese categories. Use the cdc bmi percentile result to inform your calculation.

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Frequently Asked Questions