Ideal Body Weight Calculator(IBW)

Ideal (average) body weight (IBW) is an abstract concept, and it denotes an average value obtained on the basis of a set of specified physiological parameters of a person, such as height, age, gender characteristics, and constitutional features. With our calculator, you can find your ideal weight with 15 formulas.

Cooper formula

Writer Robert Cooper, author of the book "Low Fat Living" has offered the world community his formula for calculating the ideal weight for men and women. It is based only on a person growth rate and does not take into factors such as age and physique.

Cooper formula for women:

IBW = 0.624*Height-48.9

Cooper formula for men:

IBW = 0.713*Height-58.0

Robinson formula

The Robinson Formula is an improved Devin formula that was introduced in 1983. Since the old formula was not based on any statistics, but was based only on mathematical methods. read more...

Robinson formula for women:

IBW = 49+1.7*(Height(inches)-60)

Robinson formula for men:

IBW = 52+1.9*(Height(inches)-60)

Miller formula

Miller made changes to Devin formula, since the old formula did not rely on any statistics and was based only on mathematical methods. But the new formula also ignores current weight and age and is based on height. read more...

Miller formula for women:

IBW = 53.1+1.36*(Height(inches)-60)

Miller formula for men:

IBW = 56.2+1.41*(Height(inches)-60)

Devine formula

Devine ideal weight formula was developed in 1974 by Dr. Devin to determine the dosage of medicines. But later it became widespread for calculating the ideal weight. Most of the ideal weight calculators on the Internet are based on this formula. read more...

Devine formula for women:

IBW = 45.5+2.3*(Height(inches)-60)

Devine formula for men:

IBW = 50+2.3*(Height(inches)-60)

Hamwi formula

The Humvee formula appeared in 1964 and is based on the belief that a 5-foot woman should weigh 100 pounds and a 5-foot man should weigh 106 pounds. For every additional inch over 5 feet, you add 5 pounds. On the other hand, if you are less than 5 feet tall, you should deduct 5 pounds for every 5 inches. read more...

Hamwi formula for women:

IBW = 45.5+2.2*(Height(inches)-60)

Hamwi formula for men:

IBW = 48+2.7*(Height(inches)-60)

Potton formula

The Potton indicator for calculating the ideal weight has different formulas for men and women. Similar to Brock index and based on growth rate only.

Potton formula for women:

IBW = Height-100-\dfrac{Height}{100}

Potton formula for men:

IBW = Height-100-\dfrac{Height}{200}

Nagler formula

Nagler ideal weight formula is based on height and gender. Does not include current weight and age.

Nagler formula for women:

IBW = 45.3+2.27(Height(inches) - 60)

Nagler formula for men:

IBW = 48+2.27(Height(inches) - 60)

Broca formula

The ideal weight formula was developed in 1871 by the French surgeon and anthropologist Paul Broca. The formula is suitable for people above 155 and below 185 centimeters of average build. This is an updated definition for its first known form (growth minus 100):

Broca formula for women:

IBW = (Height-100)*0.85

Broca formula for men:

IBW = (Height-100)*0.9

Monnerot-Dumaine formula

The Monnerot-Dumaine ideal weight formula takes into account the body type, bone and muscle mass of a person.

Monnerot-Dumaine formula:

IBW = \dfrac{Height-100+4*Wrist Circumference}{2}

Mohamed formula

One of the newest formulas for calculating the ideal weight, appeared in 2010. It does not have such drawbacks of some old formulas as an incorrect result with short or very tall growth.

Mohamed formula:

IBW = 0.00225*Height^2

Borngardt formula

The Borngardt Index (1886) is the only index that uses chest circumference in the ideal weight formula.

Borngardt formula:

IBW = \dfrac{Height*ChestCircumference}{240}

Metropolitan Life formula

The formula of the insurance company "Metropolitan Life", built on the tables of weight and height according to data from 1943-1983 for men and women. The tables determine the weight for a person in which he has the lowest health risks. Suitable for people over 25 and under 59. Tables are based on height, weight and age.

Metropolitan Life formula:

IBW = 50+0.75*(Height-150)+\dfrac{Age-20}{4}

Creff formula

Creff formula improves Broca index, taking into account the body type. This formula takes into account not only physique but also age.

Creff formula:

IBW = (Height-100+\dfrac{Age}{10})*0.9*Coefficient

Coefficient = 0.9 with a wrist circumference of less than 15 cm

Coefficient = 1 for a wrist circumference of 15 cm to 17 cm

Coefficient = 1.1 for wrist circumference over 17 cm

Lorenz formula

Lorenz formula for calculating the ideal weight was developed in 1929 and has two versions: for men and women. Suitable for people over 18 years of age and height from 140 to 220 cm.

Lorenz formula for women:

IBW = Height - 100 - \dfrac{Height-150}{2}

Lorenz formula for men:

IBW = Height - 100 - \dfrac{Height-150}{4}

Healthy waight based on BMI Range

The World Health Organization (WHO) has recommended a healthy BMI range of 18.5 to 25 for both men and women. Based on the BMI range, our calculator can determine this back into weight, presenting to you the range of appropriate weights for your height.

Healthy waight based on BMI Range formula:

IBW = 18.5*Height^2 \ IBW = 24.99*Height^2