Body Mass Index Calculator

This is where the formula known as Body Mass Index (BMI) is used to calculate if your weight is healthy. It is the primary indicator used by bariatric surgeons to assess a patient’s suitability for procedures and to monitor post-procedure weight loss.

What does the BMI result mean?

For most adults, an ideal BMI is in the 18.5 to 24.9 range. Below is the breakdown of the defined thresholds of weight:

BMI

18.5 or less

18.5 – 24.9

25.0 – 29.9

30.0 – 34.9

35.0 – 49.9

50.0 +

Category

Underweight

Normal

Overweight

Obese

Morbidly Obese

Super Obese

Risk of associated co-morbidities*

N/A

Low

Increased

High

Very High

Extremely High

BMI

18.5 or less

18.5 – 24.9

25.0 – 29.9

30.0 – 34.9

35.0 – 49.9

50.0 +

Category

Underweight

Normal

Overweight

Obese

Morbidly Obese

Super Obese

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