BMI is the acronym for Body Mass Index. It measures body fat based upon height and weight. The following formula is used to calculate BMI:
The weight of a kilogram divided by its squared height in meters.
The result is expressed in a number between 0 - 25. Scores between 0 and 25 indicate obesity. A score of 18.5 indicates overweight. A score of 23 indicates obesity.
A person who is 100kg and 1.75m tall will have a BMI 22.