Child Growth Percentile Calculator

Enter your child's age, height, and weight to see where they fall on WHO/CDC growth charts. Separate charts for boys and girls.

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anno
mese
kg
cm

What is a Percentile?

A percentile shows where your child ranks among 100 children of the same age and sex. P50 is the median. Values between P3 and P97 are considered a healthy range.

How to Interpret

Below P3: Monitor closely
P3-P15: Low-normal
P15-P85: Normal
P85-P97: High-normal
Above P97: Consult doctor

Come si usa?

  1. 1
    Select sexChoose boy or girl - growth charts differ by sex.
  2. 2
    Enter measurementsEnter age (years + months), weight (kg) and height (cm).
  3. 3
    Click CalculateSee weight-for-age, height-for-age and BMI-for-age percentiles with color-coded interpretation.

Domande frequenti

Which percentile range is healthy?
Any value between P3 and P97 is within the normal range. P25-P75 represents the middle half. Values P3-P15 and P85-P97 can also be healthy but warrant regular monitoring.
Which growth standard is used?
WHO Child Growth Standards (2006) for 0-5 years. CDC Growth Reference (2000) for 5-19 years.
The percentile changed - should I worry?
Growth trend over time is more important than a single measurement. A shift of two or more major percentile lines should be discussed with your pediatrician. This tool is informational only.

Child Growth Percentile Calculator

The NtoolBox Child Growth Percentile Calculator uses WHO (2006) and CDC (2000) standards to instantly calculate your child's height and weight percentiles.

Important Disclaimer

For informational use only. Consult a pediatrician if you have concerns.

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