Body mass index (BMI) is calculated according to person’s weight and height (see tables on previous page). BMI equals a person’s weight in kilograms divided by height in meters squared. (BMI=kg/m2).
BMI is a reliable indicator of body fatness for people. Additionally, BMI is an inexpensive and easy-to- perform method of screening for weight categories that may lead to health problems.
Body mass index is calculated the same way for both adults and children. The calculation is based on the following formulas:
Formula and Calculation
Kilograms and meters
Formula: weight (kg) / [height (m)]2
With the metric system, the formula for BMI is weight in kilograms divided by height in meters squared. Since height is commonly measured in centimeters, divide height in centimeters by 100 to obtain height in meters.
Example: Weight = 68 kg, Height = 165 cm (1.65 m)
Calculation: 68 ÷ (1.65)2 = 24.98
Pounds and inches
Formula: weight (lb) / [height (in)]2 x 703
Calculate BMI by dividing weight in pounds (lbs) by height in inches (in) squared and multiplying by a conversion factor of 703.
Disclaimer: It is strongly recommended to consult your doctor for professional advice. Above mentioned information and recommendations are just general and should be adapted to each person according to personal health indicators and status.