When does adult mode apply?
After the adult threshold, the calculator uses WHO or Asia-Pacific thresholds.
BMI by age
Age determines whether BMI should use adult thresholds or pediatric reference ranges.
When does child mode apply?
For children and teens, the result depends on age in months, sex, and selected standard.
Why do months matter in pediatric BMI?
In childhood, a few months can change the reference row and final category.
Calculate and assess BMI
Check the result in the browser or open the app on your platform for more convenient regular use.