OhMyCalc

WHO BMI Z-Score Calculator

Calculate BMI and estimated WHO BMI-for-age z-score for children aged 0–60 months.

How to Use

  1. Enter weight in kg and height in cm.
  2. Enter age in months and select sex.
  3. Click Calculate to see BMI and z-score interpretation.

Anwendungsfälle

Formel

BMI = weight (kg) / height² (m). Z-score = (BMI − median) / SD. Based on WHO Child Growth Standards.

Häufig gestellte Fragen

What z-score indicates underweight?
A z-score below −2 indicates underweight. Below −3 indicates severe acute malnutrition.
What z-score indicates overweight?
A z-score above +2 indicates overweight, and above +3 indicates obesity.
Disclaimer
For educational purposes only. Does not replace professional medical evaluation.