Child health & growth
Growth Percentile Calculator
Find your child's percentile for weight, height, head circumference and BMI, based on WHO Child Growth Standards (0–5 years).
Last updated: June 2026
Important note
This calculator is for general information, not a diagnosis. A single measurement does not show a growth trend; consult your pediatrician to interpret the result and follow your child's curve.
Age (in months)
Weight (kg)
Height (cm)
Head circumference (cm)
Weight-for-age
kg · Age (months)Weight-for-age: Percentile 44
Within the typical range · z = -0.14
A percentile shows where your child sits compared with peers; the range between the 3rd and 97th is usually considered normal. If concerned, consult your doctor.
These are typical reference values, not targets; what matters is that your child grows along a steady curve over time.
How to read a percentile
If your child's weight is in the 60th percentile, they weigh more than 60% of children of the same age and sex. There is no 'ideal' percentile; what matters most is that your child grows along a steady curve over time.
Frequently asked questions
What is a growth percentile?
A percentile shows where your child's measurement sits compared with children of the same age and sex. A 70th percentile for weight means your child is heavier than 70% of peers. It is based on WHO growth standards.
What percentile is "normal"?
There is no single ideal percentile. The range between the 3rd and 97th percentile is usually considered normal. What matters more than the number is that your child grows along a steady curve over time.
My child is in a low percentile, is that worrying?
Not necessarily; some children are healthy and small. But if the curve drops suddenly or a measurement is below the 3rd percentile, it is worth seeing your pediatrician to assess.
WHO vs CDC standards?
The WHO recommends its standards for children 0–5 years because they describe how children should grow under healthy conditions. This calculator uses the WHO standards.
Is my child’s data stored?
No. The calculation runs on your device only, and we do not store or send your child’s weight, height or any data.
This calculator is based on the WHO Child Growth Standards (2006) for ages 0–5 years.
Sources: WHO Child Growth Standards