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BMI Calculator

Calculate your Body Mass Index (BMI) and find your classification according to WHO. Enter weight and height for an instant result.

WHO classification table

Abaixo do peso — IMC < 18,5
Normal weight — BMI 18.5 to 24.9
Overweight — BMI 25 to 29.9
Obesity class I — BMI 30 to 34.9
Obesity class II — BMI 35 to 39.9
Obesity class III — BMI ≥ 40

What is BMI?

Body Mass Index (BMI) is an international measure used to assess whether a person is at their ideal weight relative to their height. The formula is BMI = Weight (kg) ÷ Height² (m²).

BMI is a useful epidemiological reference, but does not replace medical evaluation, as it does not consider body composition (muscle vs. fat).

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