The body mass index (BMI) is a measure of weight relative to height and is commonly used to classify underweight, overweight and obesity in adult men and women. It is defined as the weight in kg divided by the square of the height in metres. It is pertinent to note that BMI calculation (formula) is age-independent and the same for both sexes. However, for children below 19 years of age, BMI values are interpreted based on sex- and age-specific percentiles.
BMI is a good indicator of obesity. The following table summarizes the nutritional status of adults according to BMI values.
|Body Weight||BMI Range|
|Normal weight||18.50 - 24.99|
|Pre-obesity||25.00 - 29.99|
|Obesity class I||30.00 - 34.99|
|Obesity class II||35.00 - 39.99|
|Obesity class III||>=40.00|
Use this calculator to quickly find your BMI. Height and weight values may be entered either in metric or imperial units. Download our Android App from play store.