What is my BMI?
BMI is body mass index, a person's weight in kilograms divided by the square of height in meters. It is a measure of body fat based on one's height and weight.

Is the BMI an accurate tool?
The BMI is accurate for the average person. It is inaccurate for people like bodybuilders, athletes and also people who are abnormally tall or short. It is a good tool for the average person to get an idea of how overweight or underweight they might be. However, sometimes your eyes can be an even better tool.