Body Mass Index Calculator

Ideal body weight is everybody’s dream. But practically we can maintain our weight in a healthy weight range. To determine this range, we need to have our weight, height be ready. And the tool for this is Body Mass Index (BMI). BMI is a measure, which considers a person’s weight and height to judge the person in particular weight grade of either gender.

Body Mass Index is defined as the person’s body weight divided by the square of his height. Doctors universally use this calculation. This will yield as unit of measure of Kilogram/ m²

BMI can be obtained from a BMI chart also, which presents BMI as a fraction of weight (horizontal axis) and height (vertical axis) using curvilinear markings for different values of BMI or colors for different BMI grouping.

Body Mass Index does not consider only body mass. It is quite likely that a healthy, well-built adult may be considered underweight using the BMI formula due to presence of less or minimal fat. Alternatively, a lean person will be considered as overweight if he is tall and having enough fat distributed in his body.

For a definite height, the BMI is directly proportional to weight; for example, if body weight increases by 10%, BMI increases by 10%.

Body Mass Index can be calculated by the dividing the body weight in Kilograms by the square of the height in meters. The BMI metric for is given below-

your weight (in Kilograms) divided by your height (in Meters) squared, or

your weight/ (your height)²

The British formula of BMI is-

your weight (in Pounds) multiplied by 704.5 divided by your height (in inches) multiplied by your height (in inches).

Another mode of calculation that is in Imperial units is your weight (in stone) multiplied by 6.35 and divided by square of your height (in meter)

The BMI chart is as follows-

For a typical Western population the following measurement of BMI is regarded as standard

BMI Status

Less than 18.5 Underweight

18.5-25 Normal for the standard

25-30 Overweight

Above 30 Obese

Above 35 Severely obese

Above 40 Morbidly obese

Above 50 Superobese

In the first group, one is required to gain some weight.

If the Body Mass Index is denoting normal to somebody, he should be conscious about his weight to maintain the same.

Overweight people are at a risk to develop some weight related disorder like Diabetes, High blood pressure and cardiovascular disease. They should start reduction of weight.

Obese and the other high range people are at extremely high risked. They have every chance to develop cardiovascular diseases, high blood pressure, coronary artery disease(CAD), coronary thrombosis (heart attack), cerebral thrombosis (CVA- Cerebrovascular accidents), Diabetes, Kidney diseases, eye problems etc. Obese patient possesses a higher risk of having those said problem as high as 50-150 percent. In fact, if the BMI is more than 25, the chance of developing complication is raised by 10 to 15 percent.

“Underweight” classification is again subdivided into “severe,” “moderate,” and “mild” subclasses.