BMI Calculator Online (Free)

Check your Body Mass Index with this simple BMI calculator. Enter weight in kilograms and height in centimetres to see your BMI and weight category.

How to use the BMI Calculator Online

1. Enter the required values in the boxes above.
2. Click the Calculate button.
3. Read the result instantly below the button.

Frequently Asked Questions

What is a healthy BMI range?

A BMI between 18.5 and 24.9 is generally considered normal for adults.

Is BMI always accurate?

No. BMI does not separate muscle from fat, so athletes may show high BMI. Consult a doctor for a proper health assessment.

Is this tool free and is my data safe?

Yes, it is 100% free with no signup. Everything runs inside your browser, so your data or files are never uploaded to our server.

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