Child growth percentile (5–20 years)
From 5 years through the end of growth (around 20 years), the CDC 2000 growth charts are the
standard reference in the US. WHO's prescriptive standards only go up to 60 months, so CDC is
what your pediatrician will use from school age onward.
Enter birth date, measurement date, sex, and weight and/or stature (standing height). The
calculator defaults to "Auto", which selects CDC at this age. Bring consistent measurement
technique to each check-in so the percentile trend is meaningful.
Frequently asked questions
What age range does this cover?
5 to 20 years (60–240 months). The CDC growth charts are the only reference that covers this range; WHO's charts stop at 60 months.
Should I use BMI for older children?
Yes — from age 2 onward, BMI-for-age is the standard for assessing weight status in pediatrics. This calculator currently shows weight-for-age and stature-for-age; BMI-for-age is planned for a future update.
My child's growth slowed at puberty — is that normal?
Absolutely. Growth velocity fluctuates a lot around puberty, and early vs. late puberty can shift percentile lines temporarily. Pediatricians look at bone age and pubertal staging alongside the growth chart to interpret changes.
How tall will my child be?
Mid-parental height gives a rough estimate: for a boy, (dad's height + mom's height + 13 cm) / 2, and for a girl, (dad's height + mom's height − 13 cm) / 2, ±8 cm. Current percentile tracking + bone age is more accurate than this calculator can provide.