Waist Circumference Chart

The waist circumference is what the You On A Diet doctors talk about, and it's what first got me interested in the You on a diet book.

Experts say the bigger your waist is, the more likely it is that you'll have diabetes, or a heart attack or stroke. How big is your waist?

You can check your BMI at the BMI Calculator, and your obesity classification as well.

Disease Risk* Relative to Normal Weight and Waist Circumference
BMI
Obesity
Class

Men 102 cm (40 in)
or less
Women 88 cm (35 in) or less

Men > 102 cm (40 in)
Women > 88 cm (35 in)
Underweight
< 18.5
Normal
18.5 - 24.9
Overweight
25.0 - 29.9
Increased
High
Obesity
30.0 - 34.9
I
High
Very High
35.0 - 39.9
II
Very High
Very High
Extreme Obesity
40.0 +
III
Extremely High
Extremely High

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