BMI Calculator

BMI is short for Body Mass Index and is a number calculated using person’s weight and height. Although many people think that BMI measures the body fat, the Body Mass Index is a statistical measure showing if a person has a healthy weight for his height. The BMI show if somebody is overweight, obese, underweight or if their weight is in a healthy range. If your BMI is in the 19-25 range it is generally considered that you have a healthy weight. A body mass index lower than 19 puts you in the underweight category, while a BMI of 25+ is usually a sign that you are overweight. Anything above 30 is considered obese and BMI of 40+ is morbidly obese.

Calculating Body Mass Index is very easy, and you can do it using our BMI calculator below, or you can calculate it by yourself using the following formulas:

Metric BMI Formula

BMI = Mass (kg) / (Height (m) * Height (m))

Imperial BMI Formula

BMI = (Mass (lb) X 703) / (Height (in) * Height (in))

For example if a person weights 90kg and is 1.81m tall, their BMI will be:

BMI = 90 / (1.81 * 1.81) = 27.47

,which puts them in the overweight category. If a person weights 175lb and is 5’ 11” tall (71 ‘), then their BMI will be:

BMI = (175 * 703) / (71 * 71) = 24.40

,which according to the BMI classification is a healthy weight.

BMI Calculator (Imperial)
Height:	ft	in
Weight:	lb
		Your BMI is: