BMI Calculator

Calculate your Body Mass Index and healthy weight range

Height (cm)

5 ft = 152 cm · 5'6" = 168 cm · 6 ft = 183 cm

Weight (kg)

Your BMI

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

Healthy weight range

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Weight to lose/gain

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BMI Prime

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Ponderal Index

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BMI Range	Category	Health risk
Below 18.5	Underweight	Moderate
18.5 – 24.9	Normal weight	Low
25.0 – 29.9	Overweight	Moderate
30.0 – 34.9	Obese Class I	High
35.0 – 39.9	Obese Class II	Very high
40 and above	Obese Class III	Extremely high

About BMI

What is BMI?

Body Mass Index (BMI) is a measure of body fat based on height and weight. It is calculated as weight (kg) ÷ height² (m²). It is a useful screening tool but does not directly measure body fat percentage.

Is BMI accurate for Indians?

Research suggests that Asian populations, including Indians, tend to have higher body fat percentage at a given BMI compared to Western populations. Some health guidelines recommend lower BMI thresholds for Indians — overweight at 23+ and obese at 27.5+.

What are the limitations of BMI?

BMI does not distinguish between muscle and fat mass. Athletes may have a high BMI but low body fat. Elderly people may have a normal BMI but high body fat. Always consult a doctor for a full health assessment.