Table 1.

Classification of obesity by body mass index, waist circumference and associated health risk

BMI classification	BMI (kg/m²)	Health risk† (relative to weight status and waist circumference)
		Normal waist circumference§	High waist circumference‡
Normal	18.5-24.9
Overweight	25-29.9	Increased	High
Obese Class I	30-34.9	High	Very high
Obese Class II	35-39.9	Very high	Very high
Obese Class III	≥40	Extremely high	Extremely high

^†Health risk is of diabetes, hypertension, hyperlipidemia, sleep apnea, ^§Normal waist circumference-men ≤102 cm, women ≤88 cm,[4] ^‖High waist circumference-men >102 cm, women >88 cm. BMI=Body mass index