WHO BMI Z-Score Calculator
Calculate BMI and estimated WHO BMI-for-age z-score for children aged 0–60 months.
How to Use
- Enter weight in kg and height in cm.
- Enter age in months and select sex.
- Click Calculate to see BMI and z-score interpretation.
Use Cases
- •Pediatric nutrition screening.
- •Growth monitoring in primary care.
- •Malnutrition assessment programs.
Formula
BMI = weight (kg) / height² (m). Z-score = (BMI − median) / SD. Based on WHO Child Growth Standards.
Frequently Asked Questions
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.