What is a BMI calculator, and how is body mass index interpreted in Europe?

BMI calculator explained: body mass index formula, weight-to-height ratio, overweight and obesity classification, and health risk screening.

In this episode, we outline how BMI is calculated and how doctors use it under EU medical guidance.

You’ll learn:

• The BMI formula (weight in kilograms divided by height in metres squared)

• WHO BMI categories: underweight, normal weight, overweight, obesity

• Why BMI is a screening tool, not a full diagnosis

• How waist circumference improves cardiometabolic risk assessment

• Limitations of BMI in athletes and older adults

• When further testing (blood pressure, HbA1c, lipid profile) is appropriate

• Situations where weight-loss medication or referral may require meeting BMI criteria

We explain how doctors assess BMI alongside waist measurement, blood pressure, glucose markers, lipid levels, medical history, and lifestyle factors during an online consultation in the EU. BMI helps guide risk stratification, but treatment decisions depend on broader metabolic assessment.

This episode reflects the clinical standards used by Mobi Doctor, where weight management consultations are reviewed by a registered physician in line with EU medical guidance.

Read the full guide and access the calculator here:

https://www.mobidoctor.eu/blog/bmi-calculator