BMI calculator

What is BMI?

Body Mass Index (BMI) is a measurement of a person’s weight with respect to his or her height.
It is more of an indicator than a direct measurement of a person’s total body fat.

BMI ranges

BMI Category
< 15 Very severely underweight
15 - 16 Severely underweight
16 - 18.5 Underweight
18.5 - 25 Normal (healthy weight)
25- 30 Overweight
30 - 35 Obese Class I (Moderately obese)
35 - 40 Obese Class II (Severely obese)
> 40 Obese Class III (Very severely obese)

Accuracy of BMI

BMI doesn't take individual factors into account when calculating your BMI, most common argument against it is it lack of distinguishing between muscle mass and fat.

Muscle is much denser than fat, so very muscular people, such as heavyweight boxers, weight trainers and athletes, may be a healthy weight even though their BMI is classed as obese.

If you want a more reliable answer to if your weight is healty or not you should seek the help of an healthcare professional as they may take other factors into account when assessing your weight.

BMI calculation

Body Mass Index (BMI) is a mathematical formula that divides a person's weight by the square of their height to arrive at a number

A normal BMI score is one that falls between 18.5 and 24.9. This indicates that a person is within the normal weight range for his or her height.
A BMI chart is used to categorize a person as underweight, normal, overweight, or obese.