Child BMI Calculator
Calculate BMI for children and teenagers ages 2-20 with CDC-based percentile rankings. Includes weight status categories based on age and gender.
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Enter weight, height, age (2-20), and gender to calculate child BMI.
Child BMI Percentiles
For children, BMI is interpreted using age- and sex-specific percentiles because body composition varies with age and gender. CDC growth charts are used for ages 2-20.
- Below 5th percentile: Underweight
- 5th to 84th percentile: Healthy Weight
- 85th to 94th percentile: Overweight
- 95th percentile and above: Obese
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Disclaimer: This tool is provided as-is for informational and educational purposes only.