Estimated ideal body weight in (kg)
Male: IBW = 50 kg + 2.3 kg for each inch over 5 feet.
Female: IBW = 45.5 kg + 2.3 kg for each inch over 5 feet.
The history of the formulas for calculating ideal body weight began in 1871 when Dr. P.P. Broca4 (a French surgeon) created this formula ( known as Broca's index):
Weight (in kg) should equal Height( in cm) - 100, plus or minus 15% for women or 10% for men.
An unknown person translated Broca's formula into pounds and inches, and modified it to create this improved simple rule:
"For women, allow 100 lbs for the first 5 feet and 5lbs for each additional inch. For men, allow 110 lbs for the first 5 feet and 5 lbs for each additional inch"1.
source from: http://www.halls.md/ideal-weight/devine.htm
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