About this Tool
BMI (Body Mass Index) is a widely used screening tool to categorize weight relative to height. This calculator runs entirely in your browser — no data is ever sent to a server.
How to Use
- Select your preferred unit system (Metric or Imperial).
- Enter your weight and height.
- Click "Calculate BMI" to see your result on the visual gauge.
- Click "Download Result" to save it as an image for sharing.
Frequently Asked Questions
Is BMI an accurate health measure?
BMI is a useful screening tool but does not account for muscle mass, bone density, or fat distribution. Consult a healthcare professional for full assessment.
Is my data private?
Yes — all calculations happen locally in your browser. Zero data is transmitted anywhere.