How to use it
- Enter the values you know.
- Adjust units, rates or dates to match your situation.
- Read the result instantly and try another scenario if needed.
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BMI Calculator
Calculate adult BMI with metric or US measurements.
BMI22.9Healthy range
BMI is a screening estimate, not a medical diagnosis.
✓ Your data stays on your device
Supported formats
Numbers, dates and browser-based results
✓ Private by design
Your data stays on your device. No account is required.
Frequently asked questions
Does this calculator store my values — BMI Calculator?
No. The calculation happens in your browser and the values are not saved or sent to our server.
Is the result exact — BMI Calculator?
The result follows the displayed formula and your inputs. Financial, health and time-zone results are estimates and should be checked for important decisions.
Can I use it without an account — BMI Calculator?
Yes. The calculator is free and works without signing in.