BMI Calculator

WHO Standard Formula · Real-Time · Free

Enter total height as feet + remaining inches (e.g. 5 ft 9 in)

Semicircle BMI gauge. Color zones: blue = underweight below 18.5, green = normal 18.5 to 24.9, orange = overweight 25 to 29.9, red = obese 30 and above. A needle moves to show your current BMI.
Enter height and weight above to see your BMI

BMI Categories — WHO Standard

Underweight
<18.5
Normal
18.5–24.9
Overweight
25–29.9
Obese
≥30

BMI is a population-level screening tool, not a clinical diagnosis. Muscle mass, bone density, and distribution of body fat are not captured by BMI. Consult a qualified healthcare provider for personalised medical advice.

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