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BMI Calculator

Calculate your Body Mass Index instantly. Supports metric (kg/cm) and imperial (lbs/ft) units.

📐 Enter Your Measurements

Weight (kg)

Height (cm)

BMI Calculator — What is Body Mass Index?

BMI (Body Mass Index) is a simple measure of body fat based on height and weight. A BMI between 18.5 and 24.9 is considered normal. This free calculator supports metric (kg, cm) and imperial (lbs, ft/in) units and provides your category, ideal weight range, and a visual gauge.

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Metric & Imperial

Switch between kg/cm and lbs/ft inches with one click.

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Visual Gauge

Animated needle shows exactly where your BMI falls on the range scale.

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Ideal Weight

See your healthy weight range and how much to gain or lose.

⚠️ Medical Disclaimer

BMI is a screening tool, not a diagnostic measure. It does not account for muscle mass, bone density, age, or sex. Consult a qualified healthcare professional for personalised health advice.

About This Tool

This free tool lets you calculate your Body Mass Index (BMI) from your height and weight. It is fast, easy, and works in your browser with no installation. There is no signup needed for basic use, and your privacy is respected.

How to Use

Enter your values in the fields.
Adjust any options if needed.
See the instant result.
Use or share the answer.

Frequently Asked Questions

Yes. It is completely free to use with no hidden charges.

No. You can use it right away without an account.

No. All calculations run in your browser. Nothing is stored or uploaded.

Yes. It works in any modern browser on phone, tablet, or computer.