BMI Calculator

Calculate your Body Mass Index to check if your weight is healthy for your height.

BMI Ranges

BMI	Category
Below 18.5	Underweight
18.5 – 24.9	Normal weight
25.0 – 29.9	Overweight
30.0 – 34.9	Obese (Class I)
35.0 – 39.9	Obese (Class II)
40.0 and above	Obese (Class III)

How It Works

BMI (Body Mass Index) is calculated by dividing your weight in kilograms by the square of your height in meters:

BMI = weight (kg) / height (m)²

BMI is a simple screening tool used by healthcare professionals worldwide. While it does not directly measure body fat, it correlates with more direct measures of body fat and helps identify potential weight-related health risks.

A BMI below 18.5 may indicate nutritional deficiency or other health issues.
A BMI between 18.5 and 24.9 is generally considered healthy.
A BMI of 25 or above may indicate excess weight that could lead to health problems.
BMI does not distinguish between muscle and fat mass, so athletes may have a high BMI without excess body fat.

BMI Ranges

How It Works

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