Calculate your BMI

BMI is a key factor in determining eligibility for surgical and non-surgical weight loss treatments.

The BMI or Body Mass Index ranges and classifications are:

  • Normal weight: BMI of 18.5 to 24.9
  • Overweight: BMI of 25 to 29.9
  • Obese:
    • BMI of 30 or higher – Obese Class I (surgical criteria with comorbidity)
    • BMI of 35 or higher – Obese Class II (surgical criteria with no comorbidity)

BMI is calculated using a combination of a person’s height and weight. A high BMI can indicate a high degree of body fat, and can contribute to such risks as heart disease, high blood pressure (hypertension), type 2 diabetes and more.

Use our calculator below to calculate your BMI.

Calculate your BMI



Your BMI:


To help determine if weight loss treatment is an option for you, below lists the required BMI and criteria for a range of surgical and non-surgical treatments available with Dr George Balalis.

Patient criteria for all treatment options

  • Age >18
  • No eating disorders
  • No untreated acute psychiatric disorders
  • No alcohol or drug dependency
  • Has tried other avenues without success
  • Committed to a healthy lifestyle and lifelong care

Additional patient criteria for weight-loss medication

BMI 27 (with comorbidity)

BMI 30 (without comorbidity)

Average weight loss with medication is 5-10% of total body weight.

Patients with pancreatitis or allergies to medication may not be suitable for medication.

Additional patient criteria for Allurion Gastric Balloon 

BMI 27 – 40

Average weight loss with an Allurion Gastric Balloon is 10-15% of total body weight.

Patients who have had previous bariatric surgery or a laparotomy may not be suitable for an Allurion Gastric Balloon procedure.

Read more about the Allurion Gastric Balloon.

Additional patient criteria for Endosleeve (Endoscopic Sleeve Gastroplasty)

BMI 30 – 50

Average weight loss with an Endosleeve procedure is 15-20% of total body weight.

Patients who have large hiatus hernia, gastritis, blood disorder or gastric lesions (ulcers) may not be suitable for an Endosleeve procedure.

Read more about Endosleeve procedures.

Additional patient criteria for Gastric Sleeve and Gastric Bypass surgeries

BMI 30 (with comorbidity)

BMI 35 (without comorbidity)

Average weight loss with a Gastric Sleeve and Gastric Bypass surgery is 30-35% of total body weight.

Read more about Gastric Sleeve and Gastric Bypass surgeries.


Please note, prospective patients must still receive a formal consult to confirm eligibility for any surgical or non-surgical weight treatment and to discuss your options.

Dr Balalis also provides body composition scanning as part of dietitian consults.

Contact us to schedule an appointment to find out more.



Contact Us

Considering the next step in your weight loss journey? Contact us to find out more about our holistic approach or to book your consultation.

Calculate your BMI