BMI – Body Mass Index Calculator

BMI Calculator

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BMI Calculator

Child BMI calculator is only valid for children between 2 and 20 years.


Define BMI

Body Mass Index, referred to as BMI, is a simple calculation that will estimate body fat based on a persons height and weight. Using this answer you should be able to find your healthy weight range and determine if your over or under weight. BMI is calculated by taking a person’s weight in kilograms and dividing the number by the persons height in meters squared.

BMI calculation in non-metric:

(weight in lbs. / height in inches squared) x 703 = BMI

What’s a healthy BMI? – The BMI Chart

The BMI Chart will help you determine a healthy body mass index based on your BMI score. For adults anywhere from 19 – 25 is considered by many professionals to be healthy. 25 – 30 is considered over weight and over 30 is considered obesity. Going above 40 is considered extremely obese.

Download a complete BMI chart

But Wait!
Some health professionals say BMI has it’s flaws

While by most standards calculating BMI can be a useful tool. Most won’t take into account for your age and even gender. Someone who has a large amount of muscle mass from healthy exercise, may have a high BMI and be considered overweight. Even though they have a low percentage of body fat. In this case BMI results may not be accurate in determining healthy body mass. The BMI calculator above does use your age and gender.

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