Ideal Weight Calculator

Our ideal weight calculator computes your ideal body weight (IBW) based on factors like age, gender, and height. Find how much you should weigh using popular formulas.

ages 2-80
cm
feet
inches
Result

According to the World Health Organization's recommendations, your healthy weight range is

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Input values and get the desired results.

Result

The ideal weight based on popular formulas:

Formula Ideal Weight
Robinson (1983) 156.5 lbs
Miller (1983) 155.0 lbs
Devine (1974) 160.9 lbs
Hamwi (1964) 165.3 lbs
Healthy BMI Range 128.9 - 174.2 lbs
Result

The ideal weight based on popular formulas:

Formula Ideal Weight
Robinson (1983) 72.6kg
Miller (1983) 71.5
Devine (1974) 75.0kg
Hamwi (1964) 77.3kg
Healthy BMI Range 59.9 - 81.0 kg

A Sneak Peek to the Concept of Ideal Body Weight (IBW)

Ideal body weight is a benchmark that assesses whether a person’s weight falls within a healthy range. To offer appropriate results, this benchmark considers various variables, like age, gender, and height. It is mostly used in the fitness and health sectors. The concept of ideal weight measurement functions is based on scientifically derived formulae. Over time, this concept has evolved to provide people with a standardized approach for determining IBW. To simplify this process, we have designed an ideal weight calculator.

Ideal Body Weight Formulas

Below are the formulas developed by experts in science and medical practice to calculate ideal body weight of men and women. Our ideal body weight calculator uses these formulas to provide side-by-side comparison results.

G. J. Hamwi Formula (1964)

Hamwi’s formula computes the optimum body weight by taking gender and height into consideration. This formula was intended to calculate the right dosage of medications by using factors, like height and weight. Here is the mathematical representation of this weight calculation method:

Female: 45.5 kg + 2.2 kg per inch over 5 feet

Male: 48.0 kg + 2.7 kg per inch over 5 feet

B. J. Devine Formula (1974)

This formula helps calculate ideal body weight by considering gender and height in a manner equivalent to the Hamwi’s method. Remembering formulas can be challenging so the best approach is to use an ideal weight calculator for precise results. B. J. Devine Formula was also developed with medical doses in mind. But over time, it became a popular technique for figuring out IBW. This weight computation approach relies on the following mathematical equation:

Female: 45.5 kg + 2.3 kg per inch over 5 feet

Male: 50.0 kg + 2.3 kg per inch over 5 feet

D. R. Miller Formula (1983) and J. D. Robinson Formula (1983)

The D. R. Miller and J. D. Robinson optimal weight calculation formulae were introduced in 1983 as an alternative to the B. J. Devine method. The D. R. Miller formula computes the ideal body weight for men and women using different equations, with height acting as a determining factor. It relies on the following mathematical expression:

Female: 53.1 kg + 1.36 kg per inch over 5 feet

Male: 56.2 kg + 1.41 kg per inch over 5 feet

On the other hand, the J. D. Robinson method offers gender-specific weight calculations by considering height. This weight calculation approach uses the following mathematical equation to bring precise results:

Female: 49 kg + 1.7 kg per inch over 5 feet

Male: 52 kg + 1.9 kg per inch over 5 feet

How to Use Our Ideal Weight Calculator?
Effortless IBW Calculations

Since there are several kinds of weight and mathematical expressions involved in the ideal body weight calculation for men and women, novices may find it difficult to calculate their optimal weight. This is where our ideal weight calculator will come in useful. Follow the simple steps below to find out how much should I weigh:

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Start by providing your age in years.

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Choose the gender from the provided options.

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Input your height by using either US or metric units.

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Hit the ‘Calculate’ button and quickly get results according to each formula.

Note: Click the Clear button to reset the values for more calculations.

Features of Our Ideal Body Weight Calculator

Our ideal weight calculator is a feature-rich utility that simplifies the calculation of perfect weight according
to your height and weight. Here are a few characteristics that help our tool standout:

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User-Friendly Interface

Scientific Accuracy

Multi-Device Compatibility

Age, Height, & Gender Specific Results

This healthy weight calculator features an intuitive and user-friendly interface. All the options look clean and perfectly organized. Therefore, users can effortlessly navigate our tool and determine the optimum weight for their body.

The backend of our IBW calculator has been designed with the help of various historic weight computation formulae. Therefore, the calculations provided by the tool will be completely accurate.

This ideal weight calculator is an online software program. Therefore, you don’t need to install a certain operating system or buy a specific device to reap the benefits of this tool. You just need a cutting-edge web browser.

This ideal body weight calculator helps you determine how much you should weigh by considering age, gender, and height. It is valuable for setting realistic health and fitness goals and maintaining a healthy lifestyle.

Ideal Weight Calculations Featuring Real-Life Examples

To have a better understanding of the ideal body weight measurement and its various formulae, let’s perform some optimum weight calculations using real-life data:

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Example 1

Calculate Ideal Body Weight for a 30-year-old male with a height of 6 feet (72 inches) by using the G. J. Hamwi Formula.

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Solution

Age = 30 years

Gender = Male

Height = 6 feet (72 inches)

By using G. J. Hamwi formula,

IBW = 48.0 kg + (2.7 kg × (72 - 60) inches)

IBW = 48.0 kg + (2.7 kg x 12 inches)

IBW = 48.0 kg + 32.4 kg

IBW = 80.4 kg

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Example 2

What would be the healthy weight for a 40-year-old and 5 feet, 6 inches (66 inches) tall female according to the B. J. Devine formula?

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Solution

Age = 40 years

Gender = Female

Height = 5 feet 6 Inches (66 inches)

By using G. J. devine formula,

IBW = 45.5 kg + (2.3 kg × (66 - 60) inches)

IBW = 45.5 kg + (2.3 kg x 6 inches)

IBW = 45.5 kg + 13.8 kg

IBW = 59.3 kg

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Example 3

A 25 year old male with 5 feet, 10 inches tall (70 inches). Perform this calculation according to either J. D. Robinson or D. R. Miller formula to know how much should I weigh.

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Solution

Age = 25 years

Gender = Male

Height = 5 feet, 10 inches (70 inches)

By using D. R. Miller formula,

IBW = 56.2 kg + (1.41 kg × (70 - 60) inches)

IBW = 56.2 kg + (1.41 kg x 10 inch)

IBW = 56.2 kg + 14.1 kg

IBW = 70.3 kg

In today’s digital age, there's no need for manual calculations or memorizing formulas. Open this ideal weight calculator and quickly calculate your weight using various formulas in seconds.

Multiple Kinds of Ideal Body Weight Measurements

The concept of ideal body weight is further classified into various classes, where each serves a different purpose. Here is a brief detail about each class:

Aesthetic Ideal Weight

Aesthetic Ideal Weight

It refers to the goal of having an ideal body or look based on cultural ideals of attractiveness and beauty. This IBW type includes shaping the body to create definition, proportionality, and symmetry.

Fitness Ideal Weight

Fitness Ideal Weight

It focuses on achieving a perfect weight based on peak athletic excellence and physical performance. This IBW type considers parameters, like agility, body fat ratio, endurance, and muscular mass.

Functional Ideal Weight

Functional Ideal Weight

It refers to the goal of achieving an optimal weight range for performing everyday activities, such as mobility, and a good quality of life. It evaluates elements, like joint health, balance, energy levels, and flexibility.

Medical Ideal Weight

Medical Ideal Weight

It is the concept of achieving an appropriate weight for a person’s general health and well-being. Healthcare practitioners often calculate this type of weight by using various variables, like age, body composition, gender, height, and underlying medical disorders.

Frequently Asked Questions

Yes! This calculator can be used for anyone aged between 2 to 80 years old.

There is no correct answer to this question: how much should I weigh? because these measurements just offer an idea about a person’s weight. Therefore, you can use tools like the ideal body weight calculator for guidance. But you should focus more on living and eating a healthy lifestyle.

Whenever you feel like you’ve gained a little bit of height, you can use this IBW calculator.

Absolutely! Our healthy weight calculator is free of cost and relies on industry-standard formulae to provide users with accurate results.

This ideal weight calculator uses multiple formulae to compute optimal weight because the tool aims to allow users to compare outcomes and gain a more comprehensive understanding of their ideal weight range.