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.

使用例

計算式

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

よくある質問

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.