BMI Calculator — Calculate Your Body Mass Index

Enter your height and weight to instantly calculate your BMI. Understand your body mass index category and what it means for your health.

⚖️ BMI Calculator

History

How to Use

1

Enter your height in centimeters.

2

Enter your weight in kilograms.

3

Click Calculate to see your BMI instantly.

4

Export or share your result.

BMI Categories (WHO)

BMI RangeCategory
Below 18.5Underweight
18.5 – 24.9Normal Weight
25.0 – 29.9Overweight
30.0+Obese

Frequently Asked Questions

BMI (Body Mass Index) is a measure of body fat based on height and weight: weight(kg) / height(m)². It is widely used as a health screening tool.

According to WHO, a healthy BMI is between 18.5 and 24.9. Below 18.5 is underweight, 25-29.9 is overweight, and 30+ is obese.

BMI is a screening tool, not a diagnostic one. It does not account for muscle mass, bone density, or body composition differences.

The formula is the same, but women naturally have more body fat than men at the same BMI. Use BMI as a general guideline.

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