How to calculate BMI and interpret the result

BMI (Body Mass Index) is a number obtained from a person's weight and height. It is used as a general reference to indicate if someone is below, within, or above the weight considered adequate for their height.

Despite being a simple indicator, it is widely used in initial health assessments and in gyms, clinics, and check-ups.

How to calculate BMI

The BMI formula is simple:

BMI = weight (kg) / (height (m) x height (m))

For example, a person weighing 70 kg and 1.70 m tall would have:

BMI = 70 / (1.70 x 1.70) ≈ 24.22

Using Utilo BMI calculator

Access the BMI Calculator tool.
Enter your weight in kilograms (kg).
Enter your height in meters (for example, 1.75).
Click Calculate BMI.

The tool will show the numerical result and which range it falls into.

Classification ranges (general reference)

Below 18.5: underweight
18.5 to 24.9: normal weight
25 to 29.9: overweight
30 to 34.9: obesity grade I
35 to 39.9: obesity grade II
40 or more: obesity grade III

Remember: BMI is just a reference. Very muscular people may have a high BMI without being overweight. For any health decision, always consult a professional.