Child Growth Percentile Calculator
Use exact age, sex, height and weight to compare height, weight and BMI with children of the same age.
WHO 2007
Enter the dates and measurements to compare height, weight and BMI with same-age peers.
Important context
Method and sources
- Monthly WHO LMS parameters are interpolated to calculate z-scores and percentiles.
- Weight-for-age appears only through age 10, the range WHO publishes; BMI-for-age continues to 19.
- A percentile describes position in a reference population. It is not a diagnosis or a target.
Read the real-world context
All guides →Guides connected to this calculator
WHO 2007 · ages 5–19
How to Read a Growth Percentile Without Chasing the 50th
Learn why the trend matters more than one reading, how measurement error changes results, and why weight-for-age stops at 10.
DXA ALMI · adults 20+
DXA vs InBody: What a Muscle-Mass Percentile Actually Means
A practical guide to ALM, ALMI and SMI, including why an InBody value is only a rough comparison with DXA references.