Child Growth Chart Calculator
Height-for-Age Percentile
Calculate height percentile for children ages 2-18
years
cm
BMI-for-Age Percentile
Calculate BMI percentile for children ages 2-18
years
kg
cm
Formula
BMI = Weight(kg) / Height(m)^2 | Z-Score = (Measured - Median) / SD | Percentile from Z-Score via normal distribution | CDC Growth Charts (2000) for ages 2-20
Frequently Asked Questions
What growth charts should be used for children?
The WHO growth standards are recommended for children 0-2 years, and the CDC growth charts for ages 2-20. The WHO charts describe how children should grow under optimal conditions, while the CDC charts describe how children in the US actually grew.
What does the 50th percentile mean?
The 50th percentile means your child is at the median — 50% of children the same age and sex are taller/heavier and 50% are shorter/lighter. Being at the 50th percentile is not a goal; what matters is consistent growth along a child's own curve.
When should I be concerned about my child's growth?
Consult your pediatrician if your child falls below the 3rd or above the 97th percentile, if their percentile changes significantly (crossing two or more percentile lines), or if their weight and height percentiles are very different from each other.
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