Baby Growth Percentile Calculator

Use this baby growth percentile calculator to estimate a child's growth percentile from measurements. Enter age, sex, height, weight and the reference chart used and review an estimated percentile and measurement comparison.

Approximate percentile
—
Typical range for this age —

A rough estimate only — for accurate growth tracking, use your pediatrician's official WHO/CDC growth chart, which tracks trends over multiple visits.

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How it works

Percentile estimated from age-adjusted mean and standard deviation for a normal growth distribution

How to use the Baby Growth Percentile Calculator

Start by entering age, sex, height, weight and the reference chart used. Keep the units consistent and check that each value belongs to the same question.

The result gives an estimated percentile and measurement comparison. Growth charts and clinical interpretation should be considered together. Use it as a guide and check any instructions, rules or professional advice that apply.

Frequently Asked Questions

What does this baby growth percentile calculator calculate?
It gives an estimated percentile and measurement comparison. Growth charts and clinical interpretation should be considered together.
What information should I enter?
Enter age, sex, height, weight and the reference chart used. Use the same units throughout so the result is easier to understand.
What does a percentile mean?
It compares the measurement with children in the selected reference group. It is not a grade.