Free Online BMI Calculator

Calculate your Body Mass Index (BMI) to determine if you are in a healthy weight range.

Your BMI is
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Normal range: 18.5 - 24.9

What is BMI?

Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m2 where kg is a person's weight in kilograms and m2 is their height in meters squared. A BMI of 25.0 or more is overweight, while the healthy range is 18.5 to 24.9.

BMI Categories

BMI Range Category
Below 18.5 Underweight
18.5 – 24.9 Normal Weight
25.0 – 29.9 Overweight
30.0 and Above Obesity