BMI Calculator
The BMI Calculator (Body Mass Index) is an instrument developed to provide information regarding the total body weight level in connection with height. It offers two systems of units: Imperial, which are feet, inches, and pounds, and metric measures such as centimeters, meters, and kilograms. Some users input their height and weight and select the right product.
The BMI calculator in turn computes the BMI, BMI group, BMI prime, amount above/below the limit, and then the result, including the controversy, with a graphical line risk level including all-cause mortality based on the BMI that aids in interpreting the weight status and possible healthy index of a person.
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Introduction of BMI
Have you ever heard of BMI? It’s like a quick test to see if your weight is healthy for your height. Think of it as an estimate, not a perfect science. However, it can be helpful to know when to consult a doctor about your weight.
Based on a person’s height and weight, BMI calculates leanness or heaviness and is used to define tissue mass.
See the table below to see several BMI-based categories used by BMI calculators.
The body mass index, or BMI, is a simple but widely used tool for assessing whether a person’s body weight is healthy in proportion to their height. It’s a number that can give you a quick image of your status—whether you’re in the healthy weight range, underweight, overweight, or obese. As a high school student, I heard about BMI in health class, and it’s Incredible how a simple calculation can tell us so much about our health. In this article, I’ll explain what BMI is, how it’s calculated, what these numbers mean, and why it’s not the whole story when it comes to health. I’ll also go into detail about related concepts like the BMI prime and ponderal index, as well as the risks of being overweight or underweight. Let’s get started!
BMI calculation formula
The Body Mass Index (BMI) is calculated using the following formula:
height Height is a person's height in meters.
weight Height is a person's height in meters.
First, height in meters is squared, then weight in kilograms is divided by height squared, to calculate BMI. The resulting value is a measure of the weight — according to the BMI metric — relative to height, a factor that is common to all BMI calculations. See the table below to see how the BMI calculator classifies people by their BMI value.
6ft height , 70 kg weight . BMI calculation example .
To calculate the BMI for a person with a height of 6 feet (which is equivalent to 1.8288 meters) and a weight of 70 kilograms, you can use the BMI formula:
First, square the height:
Now, plug the values into the BMI formula:
Finally, calculate the result:
So, the BMI for a person with a height of 6 feet and a weight of 70 kg is approximately 20.9.
BMI divisions and classes
BMI Prime
| Classification | BMI(kg/m2) | BMI Prime |
|---|---|---|
| Severe Thinness | < 16 | < 0.64 |
| Moderate Thinness | 16 - 17 | 0.64 - 0.68 |
| Mild Thinness | 17 - 18.5 | 0.68 - 0.74 |
| Normal | 18.5 - 25 | 0.74 - 1 |
| Overweight | 25 - 30 | 1 - 1.2 |
| Obese Class I | 30 - 35 | 1.2- 1.4 |
| Obese Class II | 35 - 40 | 1.4 - 1.6 |
| Obese Class III | > 40 | > 1.6 |