BMI Calculator
Calculate your Body Mass Index (BMI) with our free online calculator. Get instant results with health category classification.
How to Calculate Your BMI
- 1 Select your preferred unit system (Metric or Imperial)
- 2 Enter your height in centimeters or feet and inches
- 3 Enter your weight in kilograms or pounds
- 4 Click 'Calculate BMI' to see your result
- 5 View your BMI score, category, and healthy weight range
Frequently Asked Questions
Is my code or data stored anywhere? ▼
No. All developer tools process data locally in your browser. Nothing is sent to any server or logged.
Can I use these tools offline? ▼
Yes! After the initial page load, most developer tools work without an internet connection.
Are there API limits? ▼
No limits. Since processing happens in your browser, you can use the tools as much as you need.
Is the output compatible with production use? ▼
Yes. Our tools produce standard-compliant output suitable for production environments.
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Last updated: January 15, 2026 · v2.1