BMI Calculator help

BMI Calculator divides weight by height squared to give the Body Mass Index, then names the category and shows the weight range that would put the BMI between 18.5 and 24.9 at that height.

Steps

  1. Pick metric or imperial units.
  2. Enter your height and weight.
  3. Read the BMI, its category, and the healthy weight range.

Common questions

Is BMI a good measure of health?

It is a quick screen, not a diagnosis. It does not distinguish muscle from fat or account for frame size, age, or sex.

Which categories does it use?

The WHO cut-offs: underweight below 18.5, normal 18.5 to 24.9, overweight 25 to 29.9, and the obese classes above 30.

How is the healthy range worked out?

It is the weight that gives a BMI of 18.5 and 24.9 at your height, shown in both kilograms and pounds.

Does anything leave my browser?

No. The tool runs entirely on this page.

Everything runs in your browser. Nothing you enter or drop is uploaded.

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