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BMI Calculator

Categories (WHO): Underweight < 18.5 · Normal 18.5–24.9 · Overweight 25–29.9 · Obesity ≥ 30. BMI is a screening measure, not a medical diagnosis.

Frequently asked questions

What is BMI?
Body Mass Index is your weight in kilograms divided by the square of your height in metres (kg/m2). It is a quick screening tool for weight categories.
Is BMI accurate for everyone?
BMI does not distinguish muscle from fat, so athletes, older adults, children and pregnant women may need other measures. Talk to a health professional for a full assessment.
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