BMI Calculator

Classification BMI (kg/m²)
Underweight Below 18.5
Normal weight 18.5 to 24.9
Overweight 25 to 29.9
Obesity Class I 30 to 34.9
Obesity Class II 35 to 39.9
Obesity Class III 40 or above
Bibliographic Reference:

World Health Organization. Obesity and overweight. WHO. Available at: https://www.who.int/news-room/fact-sheets/detail/obesity-and-overweight