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Health - Body Mass Index
Body mass index or BMI, is a new term to measure or study obesity. It provides a reliable indicator of body fatness for most people. BMI uses a mathematical formula that takes into accounts both a person's height and weight. BMI equals a person's weight in kilograms divided by height in meters squared. (BMI= Weight in kg / height in meter square). Or divide weight (in Kg) by height (in meters) and divide the result again by height (in meters) of the person.
BMI and Waist Size
Waist less than or equal to 40 in. (men) or 35 in. (women)
Waist greater than40 in. (men) or 35 in. (women)
18.5 or less
18.5 - 24.9
25.0 - 29.9
30.0 - 34.9
Very High
35.0 - 39.9
Very High
Very High
40 or greater
Extremely Obese
Extremely High
Extremely High
From the above table it can be seen that :-
  • An individual is considered "Underweight" if their BMI is less than 18.5.
  • A BMI of 18.5 to 24.9 is considered a "Normal" weight.
  • A BMI of 25 to 29.9 is considered "Overweight
  • A BMI of 30 and above is considered Obese
Calculate your BMI

BMI can be determined by dividing your weight in pounds by your height in inches squared and then multiplying by 705.

For example, a person who is 5 feet 8 inches and weighs 180 Lbs would have a BMI of 27
• Height = 68 inches
• 68 squared = 4624
.Weight =180 Lbs
• 180 divided by 4624= 0.0389
• 0.0389 x 705 = 27.42 (rounded up to BMI of 27)
Charts and calculators to determine your BMI are easily found on most health and diet websites.

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