BMI Percentile Calculator (Ages 2-20)

Your details

CDC BMI-for-age percentile charts are sex-specific.
Whole years. Use the months field for additional precision.
Optional extra months beyond the years entered above.
mo
Body weight in pounds (imperial) or kilograms (metric).
lb
Whole feet portion of height.
ft
Additional inches beyond the feet entered above.
in
BMI PercentileHealthy weight
54.5th

Percentage of same-age, same-sex children with a lower BMI

BMI16.9kg/m²
Z-score0.11
BMI at 5th percentile14.2kg/m²
BMI at 50th percentile16.6kg/m²
BMI at 85th percentile19.4kg/m²
BMI at 95th percentile22.2kg/m²
Weight CategoryHealthy weight
54.5 th pctile
Underweight<5Healthy5-85Overweight85-95Obesity95+
5th pctile14.2
50th pctile16.6
85th pctile19.4
95th pctile22.2
This child16.9

54.5th percentile - Healthy weight

  • At age 10 years, 54% of boys have a lower BMI - the child ranks at the 54.5th percentile.
  • The median BMI for a boy of this age is 16.6 kg/m²; this child's BMI of 16.9 is above that.
  • A percentile between the 5th and 85th is in the healthy-weight range for children.
  • BMI percentile is a screening tool, not a diagnosis. Body composition, muscle mass, and growth timing all affect BMI, and a clinician interprets the number in context.

Next stepShare these results with your child's pediatrician at the next well visit. Growth trends across multiple checkups matter more than any single reading.

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