Table 1: Classification of body weight and obesity based on BMI and waist circumference.

Obesity
class
BMI
(kg/m2)
Waist
circumference
Associated
health risk

Underweight<18.5
Normal18.5–24.9Average
Overweight25.0–29.9Men: ≥94 cm
Women: ≥80 cm
Increased
ObesityI30.0–34.9Men: <102 cm
Women: <88 cm
Moderate
Moderate obesityII35.0–39.9High
Severe obesityIII≥40Very high