BMI Calculator
Use this free BMI calculator to work out your body mass index from your height and weight in metric or imperial units. Body mass index is a quick screening measure, and this BMI checker shows your result, your category, and the healthy weight range for your height. Read what BMI does and does not tell you, or work out your exact age with the age calculator.
Last updated July 19, 20263 min read
Your BMI
22.9
Healthy weight
Healthy weight range for your height: 56.7–76.3 kg
UnderHealthyOverObese
Medical disclaimer: This calculator is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
How to calculate BMI
- 1
Choose a unit system
Pick metric (kg, cm) or imperial (lb, ft/in).
- 2
Enter height and weight
Values update the result instantly as you type.
- 3
Review your category
Compare your BMI to the WHO categories and healthy range.
Benefits
- Supports both metric and imperial units.
- Instant WHO-based classification.
- Shows your personal healthy weight range.
- All calculations happen in your browser.
Common uses
- Quick health check-ins between doctor visits
- Setting fitness or weight goals
- Tracking progress alongside body composition
- Comparing across metric and imperial systems
Frequently asked questions
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