Health professionals use a BMI Calculator to determine if you are at a healthy weight for your age and height. You can enter some basic information about yourself into Pennington Biomedical’s BMI Calculator to learn the following:
BMI (Body Mass Index) is an estimate of body fat and is calculated for both children and adults. A high BMI might mean you are at a higher risk for diseases associated with obesity.
The BMI Percentile is calculated for children and young adults aged 2 to 19. Health professionals can use the percentile score to categorize a child’s BMI to identify where the child falls in relation to other children of the same age and sex.
BMI Z-Scores are also calculated for children and young adults aged 2 to 19. This number indicates how much higher or lower your BMI is on a standard growth chart. BMI Z-Scores help health professionals to monitor weight changes in children and adolescents especially if they are in the underweight or overweight percentiles.
|Under Weight||< 18.5||< 5th|
|Normal Weight||18.5 to < 25||5th to < 85th|
|Overweight||25 to < 30||85th to < 95th|
|Obese (Class I)||30 to < 35||>= 95th|
|Obese (Class II)||35 to < 40||-|
|Obese (Class III+)||>= 40||-|