Child Growth Percentile Calculator
Children's Health Centre by checkit.health
What is a growth percentile?
A percentile compares your child to others of the same age and sex. The 50th percentile is the median (average). The 10th means 10% of children are smaller and 90% are bigger. There’s a wide healthy range — most children track along their own curve over time.
WHO vs CDC growth charts
WHO charts describe how children should grow under optimal conditions and are recommended internationally for under-2s. CDC charts are commonly used in the US for ages 2+. We also offer Down-syndrome (Zemel) charts for children with Down syndrome.
When to speak to a doctor
Single measurements matter less than the trend. If your child crosses several percentile lines up or down, or you’re worried about their growth or feeding, speak to your health visitor, GP or paediatrician.
Frequently asked questions
People also ask
Sources
- WHO — Child growth standards
- CDC — Growth charts
- Zemel BS et al. — Down syndrome growth charts (2015)
Educational use only. checkit.health calculators provide general information and are not a medical diagnosis or a substitute for professional advice. Always talk to a qualified healthcare professional about your health, symptoms or before making changes to medication, diet or exercise.
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