Free health tool
BMI Calculator
Calculate body mass index from height and weight using metric or imperial units.
Runs locally in your browser. No signup needed.
Why use this?
BMI is a rough screening number, not a full health diagnosis. It can still be useful for quick tracking.
Quick tips
- Use trends, not one reading.
- Muscle mass, age, and medical context matter.
- Talk to a clinician for health decisions.