Ideal Body Weight Calculator

Based on your height and gender, use the Ideal Body Weight Calculator to get your ideal body weight (IBW) in pounds or kg. To calculate your IBW, the calculator applies the most well-known formulae. Complete the following easy steps to calculate your ideal body weight with our IBW calculator. Simply choose the IBW equation you want to utilise and hit the "Calculate" button.

Age
Gender
Height
Height

Ideal Body Weight Calculator: If converting different heights and weights into Ideal body weight (IBM) is difficult for you and you are unfamiliar with the order of operations, there is no need to worry since you can use the online Ideal body weight calculator to assist you. In the section that follows, you will learn about the manual problem-solving approach.

What does Ideal Body Weight mean?

A person's ideal body weight corresponds to the optimal weight associated with maximal life expectancy for a given height. Before BMI was used to quantify obesity, a total body weight above 20% of optimal body weight was considered obese.

What should be My Ideal Body Weight?

One’s Ideal Body weight should be the most appropriate and attractive for a person, taking into account one's age, gender, built, and culture. Also, being overweight and obese are mostly responsible for many diseases later in the part of life.

Weight Chart by Age

Height

Female

Male

4′ 6″(137 cm)

63/77 lb(28.5/34.9 kg)

63/77 lb(28.5/34.9 kg)

4′ 7″(140 cm)

68/83 lb(30.8/37.6 kg)

68/84 lb(30.8/38.1 kg)

4′ 8″(142 cm)

72/88 lb(32.6/39.9 kg)

74/90 lb(33.5/40.8 kg)

4′ 9″(145 cm)

77/94 lb(34.9/42.6 kg)

79/97 lb(35.8/43.9 kg)

4′ 10″(147 cm)

81/99 lb(36.4/44.9 kg)

85/103 lb(38.5/46.7 kg)

4′ 11″(150 cm)

86/105 lb(39/47.6 kg)

90/110 lb(40.8/49.9 kg)

5′ 0″(152 cm)

90/110 lb(40.8/49.9 kg)

95/117 lb(43.1/53 kg)

5′ 1″(155 cm)

95/116 lb(43.1/52.6 kg)

101/123 lb(45.8/55.8 kg)

5′ 2″(157 cm)

99/121 lb(44.9/54.9 kg)

106/130 lb(48.1/58.9 kg)

5′ 3″(160 cm)

104/127 lb(47.2/57.6 kg)

112/136 lb(50.8/61.6 kg)

5′ 4″(163 cm)

108/132 lb(49/59.9 kg)

117/143 lb(53/64.8 kg)

5′ 5″(165 cm)

113/138 lb(51.2/62.6 kg)

122/150 lb(55.3/68 kg)

5′ 6″(168 cm)

117/143 lb(53/64.8 kg)

128/156 lb(58/70.7 kg)

5′ 7″(170 cm)

122/149 lb(55.3/67.6 kg)

133/163 lb(60.3/73.9 kg)

5′ 8″(173 cm)

126/154 lb(57.1/69.8 kg)

139/169 lb(63/76.6 kg)

5′ 9″(175 cm)

131/160 lb(59.4/72.6 kg)

144/176 lb(65.3/79.8 kg)

5′ 10″(178 cm)

135/165 lb(61.2/74.8 kg)

149/183 lb(67.6/83 kg)

5′ 11″(180 cm)

140/171 lb(63.5/77.5 kg)

155/189 lb(70.3/85.7 kg)

6′ 0″(183 cm)

144/176 lb(65.3/79.8 kg)

160/196 lb(72.6/88.9 kg)

6′ 1″(185 cm)

149/182 lb(67.6/82.5 kg)

166/202 lb(75.3/91.6 kg)

6′ 2″(188 cm)

153/187 lb(69.4/84.8 kg)

171/209 lb(77.5/94.8 kg)

Ideal Body Weight Formula

There are different body weight formulas,

The Broca equation

Women: 

IBW [kg] = (height [cm] - 100) - ((height [cm] - 100) × 15%)

Men: 

IBW [kg] = (height [cm] - 100) - ((height [cm] - 100) × 10%)

The Robinson equation

Women:

 IBW [kg] = 49 kg + 1.7 kg × (height [in] - 60)

Men: 

IBW [kg] = 52 kg + 1.9 kg × (height [in] - 60)

The Devine equation

Women:

 IBW [kg] = 45.5 kg + 2.3 kg × (height [in] - 60)

Men:

 IBW [kg] = 50 kg + 2.3 kg × (height [in] - 60)

The Miller equation

Women:

 IBW [kg] = 53.1 kg + 1.36 kg × (height [in] - 60)

Men:

 IBW [kg] = 56.2 kg + 1.41 kg × (height [in] - 60)

The Hamwi equation

Women:

 IBW [kg] = 45.5 kg + 2.2 kg × (height [in] - 60)

Men:

 IBW [kg] = 48 kg + 2.7 kg × (height [in] - 60)

The Lemmen’s equation

Women & Men: 

IBW [kg] = 22 × height[m] 2

BMI range equation

IBWmin [kg] = (18.5 / 703) × height [in] 2

IBWmax [kg] = (24.9 / 703) × height [in] 2

Step by Step Calculation of Ideal Body Weight

  • To calculate the ideal body weight, first, we need to check the height of a person.
  • Select the equation to calculate the ideal body weight.
  • After that, calculate the ideal body weight.

Solved Example on Ideal Body Weight for Adults

Example:

Calculate the ideal body weight for a male person whose height is 166cm.

Solution:

Here the height of the person is 166cm.

Let us check the equations to calculate the ideal body weight.

IBWmin [kg] = (18.5 / 703) × height [in]2

IBWmax [kg] = (24.9 / 703) × height [in]2

Now, put the value in the above equation to calculate the result.

IBWmin = 50.97 kg

IBWmax = 68.614kg

Here, we can say that the ideal body weight of a person should be between 50.97kg to 68.71kg.

Try a couple more calculators, visit Online Guide for numbers in a range of units and sizes.

FAQs on Ideal Body Weight Calculator

1. Is ideal body weight accurate?

The accuracy of ideal body weight is approx 0.5–0.7%.


2. How much should I weigh for my height and age in KG?

The ideal body weight for women is 49 kg + 1.7 kg for every inch above 5 feet while for men it is 50 kg + 1.9 kg for every inch above 5 feet.


3. What is the difference between ideal body weight and BMI?

BMI can be referred to as a quick reference for making a judgement, on whether an individual is overweight or underweight whereas body weight is a weight that is believed to be maximally healthful for a person.


4. What's the average weight of a human?

The average weight for a human was found to be 62 kilograms.