WHO Child Obesity Indicator Calculator
This calculator uses WHO z-score tables. For children 0–60 months it uses weight-for-length/height. For children 61–228 months it uses BMI-for-age.
Enter child measurements
Result
Enter measurements and click Calculate WHO category.
WHO Category List
Children 0–60 months
| WHO z-score | Category |
|---|---|
| < -3 SD | Severe wasting |
| -3 to < -2 SD | Wasting / underweight range |
| -2 to +2 SD | Normal |
| > +2 to +3 SD | Overweight |
| > +3 SD | Obesity |
Children and adolescents 5–19 years
| WHO z-score | Category |
|---|---|
| < -3 SD | Severe thinness |
| -3 to < -2 SD | Thinness / underweight range |
| -2 to +1 SD | Normal |
| > +1 to +2 SD | Overweight |
| > +2 SD | Obesity |
Important note
This is an educational and screening calculator. It should not replace clinical assessment, especially in children with oedema, acute illness, measurement error, prematurity, or complex medical conditions.