Detailed Guide Coming Soon
We're working on a comprehensive educational guide for the BMI Calculator in your language. The content below is shown in English.
Pro Tip
If your BMI is near a category cutoff, pair it with waist circumference or body-fat measures before drawing strong conclusions about health risk.
Did you know?
The Quetelet Index, later renamed BMI, was developed long before modern body-composition scanners existed, which is one reason it remains simple and widely used.
Have a question about this calculator? Get a detailed answer.
Variable Legend
Metric formula
Weight in kg, height in metres.
Imperial formula
Weight in pounds, height in inches.
BMI categories (WHO)
Standard weight status categories.
Ideal weight from BMI
Target weight to reach a BMI of 22 (mid-normal).
Read the full guide on how to use this calculator effectively
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