Wondering about how much you should weigh or being concerned about your health? Check out my article below right now, as our Ideal Weight Calculator will definitely help.
Ideal Weight Calculator
here is the ideal weight calculator:
The Ideal Weight Calculator is a tool designed for estimating ideal body weight (IBW) based on such criteria as age, gender, and height. For serving medical purposes, formulas for IBW calculation have been studied since the 1960s and a long time thereafter.
Our Ideal Weight Calculator includes the four most widely-used formulas integrated; thus, you can get four results for your comparison.
Fill in the units, press the calculate button, then you will see your ideal body weight.
Table of Contents
What is the Ideal Weight Calculator for?
The Ideal Weight Calculator is a measurement instrument that is easy and convenient to use, helping to compute weights for various purposes.
Ideal body weight formulas were initially invented for use in the medical field; thus, medical purposes are mentioned first. In the first stage of its appearance, IBW was mainly used to calculate drug dosages for patients. The origin and history of IBW have clearly expressed its roles in such aspects.
Bodyweight has a significant impact on the power, speed, or endurance of people who participate in sports competitions. Thus, IBW Calculator is also used for many sports involving weights or classifying athletes based on weights.
In general, knowing your ideal weight can help you improve your health and life. When you know how much you should weigh, you can choose your suitable fitness and nutrition for a healthier body.
For your detailed view, the following sections will provide specific information about the parts of our Ideal Weight Calculator, namely, Units (Fundamental Factors), Formulas, and Healthy BMI Range.
Normally, people usually judge that someone has an ideal body weight via his or her appealing visual appearance. However, IBW, emerging from medical purposes, is not really related to how somebody looks.
There are many matters that can affect the ideal body weight of someone. This part will offer information on the main factors contributing to the body’s ideal weight, which are used in forming our Ideal Weight Calculator.
Besides the under-listed factors, several other elements can also affect the ideal weight, such as muscle to fat ratio, health conditions, and so on.
In principle, age does not affect the IBW of girls who are more than 14-15 years old or boys who passed the stage of 16-17, as most physical development stops after such stages. However, when people get old, there will be a decrease in lean mass muscle and an increase in fat mass. Furthermore, both males and females are said to respectively get a loss of 1.5 inches and 2 inches in height when reaching the age of 70.
Though we can reduce the above-mentioned impacts partly via persistently practicing good habits such as doing morning exercises, having good diets, or getting enough sleep…, we cannot eliminate the aging process. So, age is one of the factors considered when computing the ideal body weight.
Due to several different characteristics in the body of males and females, gender becomes a determinant of IBW. Firstly, it’s the matter of muscle mass and bone density, which is usually higher in males. Clearly, muscle and bone are heavy and heavier than body fat that is said to be at a higher rate in females. Secondly, males are generally taller in comparison with females. Thus, there will be differences in the ideal weight of males and females.
Taller persons will have more muscle mass and body fat, which will make them gain more weight. Thus, obviously, height affects the ideal body weight measurement.
Body Frame Size
Besides the above-mentioned elements, body frame size is also an element having a notable influence on the ideal weight. The body frame size normally includes three types: small-boned, medium-boned, and large-boned, which are classified based on the wrist size of a person for each group of height. The following table shows you the classification of the body frame size.
|Under 5’2’’||Small-boned = wrist size less than 5.5″|
|Medium-boned = wrist size 5.5″ to 5.75″|
|Large-boned = wrist size over 5.75″|
|Between 5’2’’ and 5’5’’||Small-boned = wrist size less than 6″|
|Medium-boned = wrist size 6″ to 6.25″|
|Large-boned = wrist size over 6.25″|
|Over 5’5’’||Small-boned = wrist size 5.5″ to 6.5″||Small-boned = wrist size less than 6.25″|
|Medium-boned = wrist size 6.5″ to 7.5″||Medium-boned = wrist size 6.25″ to 6.5″|
|Large-boned = wrist size over 7.5″||Large-boned = wrist size over 6.5″|
The weight of someone who is large-boned is usually more than someone who is small-boned, as the bone, even when both people are the same height. Thus, body frame size will have certain impacts on IBW.
Formulas for calculating the ideal weight
At the first stage of its appearance, IBW formulas were created for medical purposes. In particular, they were intended to be the tool for setting drug doses suitable to the patients’ weight and height.
In general, all the equations will start with a fixed weight for the height of five feet, then add another number for each inch over five feet. Each equation will be a little different between male and female as gender is one of the factors that were considered as mentioned above.
For detailed information, you can check out the table below.
|G. J. Hamwi Formula (1964)||48.0 kg + 2.7 kg per inch over 5 feet||45.5 kg + 2.2 kg per inch over 5 feet|
|B. J. Devine Formula (1974)||50.0 kg + 2.3 kg per inch over 5 feet||45.5 kg + 2.3 kg per inch over 5 feet|
|J. D. Robinson Formula (1983)||52 kg + 1.9 kg per inch over 5 feet||49 kg + 1.7 kg per inch over 5 feet|
|D. R. Miller Formula (1983)||56.2 kg + 1.41 kg per inch over 5 feet||53.1 kg + 1.36 kg per inch over 5 feet|
The Devine Formula, which is the most commonly used formula for calculating IBW these days, was initially introduced by Dr. B. J. Devine in 1974 for estimating the most appropriate medicinal doses. Similarly, Hamwi Formula was invented by Dr. G. J. Hamwi in 1964 for the same purposes. Besides, Robinson Formula and Miller Formula were improved from Devine Formula and published in 1983.
As you may observe, the formulas are quite similar in format, just different in the values for calculation. Such difference results from specific research and findings that the experts participated in while developing the formulas.
With our Ideal Weight Calculator, you can check the results of all formulas in a comparative view. Just enter the units, and you will see the four results for your reference.
Healthy Weight Range Based on BMI
BMI (Body Mass Index) shows somebody’s weight (kilograms) in each square of height (meters). BMI is also a popular way to find out the IBW. The following chart is standard BMI indicators together with respective weight status for adults.
|Underweight||less than 18.5|
|Normal weight||18.5 – 24.9|
|Overweight||25 – 29.9|
|Obesity||30 – 35|
|Severe obesity||35 and more|
The BMI indicators of from 18.5 to 24.9 is the healthy range suggested by the World Health Organization (WHO) for all adult people regardless of gender. Optimal weight can also be calculated based on the BMI range. BMI is very popular in the medical field as it is a common indicator used for showing health status in a quick way. It reflects the chances of encountering obesity, diabetes, heart disease, etc. Periodic checks of your BMI, like periodic health examination, help to evaluate your health status and prevent risks of getting diseases.
For children and teens, the formula of BMI is a little different as age and gender will be taken into consideration. At such stages, the body fat differs between girls and boys and depends on the age as well. The Centers for Disease Control and Prevention (CDC) recommend a BMI from 5th to less than 85th percentile for children depending on their specific age.
|Underweight||less than 5th percentile|
|Normal weight||5th percentile to less than 85th percentile|
|Overweight||85th percentile to less than 95th percentile|
|Obesity||equal to or greater than 95th percentile|
Besides giving you four results of IBW based on four different formulas, our Ideal Weight Calculator also provides you with BMI indicators. The BMI result will be expressed in a weight range instead of a number like the ones of four formulas.
In other words, our Ideal Weight Calculator transfers the normal BMI indicators to weight indicators, showing you the range of suitable weights for your height.
Advantages and disadvantages of our Ideal Weight Calculator
As a measurement tool, our Ideal Weight Calculator will have both pros and cons in its functions. You can see the details below.
Firstly, our Ideal Weight Calculator shows ideal weights based on four formulas, including Hamwi Formula, Devine Formula, Robinson Formula, and Miller Formula. The four respective results will be displayed simultaneously so you can easily view and compare.
Secondly, our Ideal Weight Calculator also provides you with BMI results in weight. With such results, you can estimate your healthy weight range for your maintenance for the best health.
Thirdly, our Calculator is extremely easy to use and very quick to get a result. Just plug in your height and age values and choose your gender; it will show the results of four equations and BMI weight range in seconds.
The limitations of the ideal weight calculator coming from limitations of formulas and methods. As they are created to serve many people, we cannot ask for an accuracy rate of individual-to-individual from them.
The formulas do not take into account the matter of muscle mass, body fat, or bone density. It can also be not really accurate for someone who is pregnant or having physical handicaps. Thus, take our Ideal Weight Calculator as a general tool for computing healthy weight based on popular formulas, do not consider its results as something must to chase in any way.