Print

Ideal Body Weight Formula

Looking for ideal body weight formula? If the question 'what should be my ideal body weight for my age and height' is swirling in your mind then leaf through this article which provides simple ideal body weight formula.
Calorie, weight loss diets are hot topics for all sorts of magazines and websites; as more and more people are becoming calorie conscious and trying to maintain a perfect figure. Men are interested in six pack abs while women desire thin figures. Calculating body mass index helps get an approximate idea about what should be the ideal body weight (IBW) for an individual. Ideal body weight varies according to the genetics, age, height and sex. As the name suggests, it is the 'ideal' weight; and slightly different 'normal' weight of a person should not be a cause of concern. Here follows the ideal body weight formula.

How to Find Your Ideal Body Weight

Various Ideal Body Weight Formulas
The original formula was created by Dr. P.P. Broca, a French surgeon, in 1871:

Ideal Weight (in kg) = Height (in cm) - 100, plus or minus 15% for women or 10% for men.

Dr. B J Devine announced the following formula in 1974:

For men: Ideal Body Weight (in kilograms) = 50 + 2.3 kg per inch over 5 feet.
For women: Ideal Body Weight (in kilograms) = 45.5 + 2.3 kg per inch over 5 feet.

But it was noticed that values of IBW (especially of short women) were too low, when Devine IBW formula was used. So experts started using Robinson formula, which is as follows:

For men: Ideal Body Weight (in kilograms) = 52 kg + 1.9 kg for each inch over 5 feet
For women: Ideal Body Weight (in kilograms) = 49 kg + 1.7 kg for each inch over 5 feet

Nowadays, following formulas are used to calculate IBW for men and women:

Hanwi formula for men: Ideal Body Weight (in kilograms) = 48 kg + 2.7 kg for each inch over 5 feet
Hanwi formula for women: Ideal Body Weight (in kilograms) = 45.5 kg + 2.2 kg for each inch over 5 feet
Hanwi formula for men (in pounds): 106 lbs for first 5 feet + 6 lbs for each inch over 5 feet (medium frame) Small frame (- 10%), Large frame (+ 10%)
Hanwi formula for women (in pounds): 100 lbs for first 5 feet + 5 lbs for each inch over 5 feet (medium frame) Small frame (- 10%), Large frame (+ 10%)

Age of the person is not taken into consideration in the above formula for ideal body weight.

Calculating Ideal Body Weight with BMI
BMI gives a good idea about the ideal weight for women and ideal weight for men.

BMI = mass (kg) / height2 (m2) or
BMI = mass (lb) × 703 / height2 (inches2)

You may use the following chart to know the status of your BMI number:

BMI Interpretation
BMI 18.5 to 25 Normal or optimal weight
BMI > 25 Overweight
BMI < 18.5 Underweight
BMI < 17.5 Extremely underweight
BMI = 30 or BMI > 30 Obese
BMI = 40 or BMI > 40 Morbid obesity

On the Internet, instant BMI calculators are available. You just have to fill in your height and weight and you get your BMI immediately. You can find answer to the question 'am I overweight for my height'; once you know your BMI.

Obesity has become an universal problem. Height and weight of obese or overweight people would not match the data given in ideal weight and height charts. They may refer to BMI chart or average weight and height chart. Similarly, athletes, bodybuilders, pregnant women may have different weight and height standards. Ideal body weight formula is actually used to determine certain medication dosages, especially when the patient is obese. You should not worry if your weight does not match the ideal weight for your height.
By Leena Palande
Published: 11/19/2010
Have Something to Say?
Name: