Using WHO growth reference data

Child Height Percentile Calculator

See where your child’s height falls on the WHO height-for-age reference for children ages 2–19.

Based on official WHO growth reference data. No account required.

Growth tools

Choose what you’d like to explore

Check current height percentileSee where a child’s current height falls on the WHO height-for-age reference.Estimate adult height from parentsGet a rough genetic target-height estimate using the biological parents’ heights.

Step 1

Enter the measurement

Use the date and height recorded at the same measurement.

Sex
cm

Measure without shoes.

Calculated in your browser. Your entries are not saved.

Step 2

Your result will appear here

Enter the child’s details to see their position on the WHO height-for-age reference.

How is this calculated?

In simple terms, the calculator determines the child’s age at the measurement date, selects the matching WHO height-for-age reference for their age and sex, and calculates where the measured height falls on that reference.

Technically, the matching WHO L, M, and S parameters are used to calculate a z-score. That z-score is then converted to a percentile using the standard normal distribution.

Sources

Height reference data: WHO Child Growth Standards for ages 2–5 and WHO height-for-age reference for ages 5–19.