BMI Calculator
Calculate your Body Mass Index (BMI) from height and weight, with underweight/normal/overweight/obese classification. Everything runs in your browser.
Enter height and weight
FAQ
How is BMI calculated?
Weight (kg) divided by height (m) squared. Example: 170cm, 65kg → 65 ÷ 1.7² ≈ 22.5.
What are the categories?
Per WHO: under 18.5 underweight, 18.5–25 normal, 25–30 overweight, 30+ obese.
Is my data sent to a server?
No. All calculations happen in your browser and nothing leaves your device.
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