BMI is a formula based on a value calculated by a person’s height and weight. The value of the calculation will indicate if a person is underweight, normal weight, overweight or suffer from obesity. BMI is an English acronym for “Body Mass Index.”

**What is the meaning of BMI?**

The Body Mass Index is used mainly to promote public health by estimating the approximately values of a person’s body fat and to indicate if the person may be at risk of developing lifestyle diseases like diabetes, hypertension and cardiovascular disease.

BMI is also used to help indicate if a person might suffer from underweight and therefore have a greater possibility of developing respiratory diseases, weakened immune system and osteoporosis.

**The calculation of BMI**

The BMI is defined as the person’s bodyweight divided by the square of his or her height. The total will indicate the person’s BMI.

Calculation of BMI in kg:

Weight (kg) / (height in meters * height in meters) = Your BMI

Calculation of BMI in lb and ft:

(Weight in lb * 4.88) / (Height in ft * Height in ft) = Your BMI

**Definition of the BMI values:**

BMI under 18.5 = Underweight

BMI between 18.5 and 24.9 = Normal range

BMI between 25 and 29.9 = Overweight

BMI over 30 = Obesity