Pediatric BMI Percentile Calculator
Pediatric BMI Percentile
Calculate a child BMI percentile based on age, sex, height, and weight using CDC growth chart references
years
lbs
inches
Formula
BMI = (Weight in lbs / Height in inches squared) x 703; Percentile from CDC age-sex reference charts
Frequently Asked Questions
Why is BMI percentile used for children instead of standard BMI?
Children BMI changes as they grow, so a single BMI number does not have the same meaning at every age. Percentiles compare a child BMI to others of the same age and sex, providing a more accurate assessment.
What BMI percentile is considered healthy for children?
A BMI between the 5th and 85th percentile is considered healthy weight for children. Below the 5th percentile is underweight, between 85th and 95th is overweight, and above the 95th is obese.