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BMI Calculator
Enter your height and weight to calculate BMI with a category rating (underweight, normal, overweight, obese). Supports metric and imperial units. For informational purposes only.
100% Private & Secure
This tool runs in your browser.
Your data is never uploaded or stored.
Units:
How to use
- 1
Enter your height and weight.
- 2
Click Calculate.
- 3
Review your BMI and weight range.
Why use this tool?
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Fast, instant results — no waiting, no page reloads.
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Clean, focused interface designed for developers.
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100% private — everything runs in your browser, nothing is uploaded to any server.
Frequently Asked Questions
Is this a medical diagnosis?
No. BMI is a screening tool and should not be used as a medical diagnosis.
Does it support imperial units?
Yes. You can switch between metric (cm/kg) and imperial (ft·in/lb).