The BMI Formula

October 28, 2008

BMI stands for the Body Mass Index and is a measure of obesity based on height and weight. Body mass index calculation is very straightforward. Calculating body mass index requires only two measurements, height & weight.

The metric bmi formula accepts weight measurements in kilograms & height measurements in either cm’s or metres.
1 metre = 100cms

metres² = metres * metres

BMI (kg/m2) = weight in kilos / heights in metres2

Find Weight Status

Table: BMI Weight Status Categories

BMI

Weight Status

Below 18.5

Underweight

18.5 -24.9

Normal

25 - 29.9

Overweight

30 & Above

Obese

If you have calculated BMI use the table above to find your weight status. Different nations & organizations use different BMI ranges to classify weight status. Our table is in keeping with the internationally recognized, US Department of Health & Human Services weight status categories.

Source: http://www.whathealth.com/bmi/formula.html

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2 Responses to “The BMI Formula”

  1. bmi-formula asia Says:

    Thanks for posting this article. I’ve been looking for the point when they changed the BMI standards, now I’ll be better able to explain the insanity of it all, to people.

    p/s:did the BMI standard suitable for the asian??

  2. kkoh Says:

    Whilst the formula remains the same, the weight index is different for Asian people. For Asian people, a BMI of 23 rather than 25 is considered overweight. This article provides further information on the rationale for this:

    http://www.mydr.com.au/default.asp?Article=3735

    I hope this helps!

    Cheers, Kareene


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