ideal weight calculator (2023)

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Dieideal weight calculatorcalculates ideal body weight (IBW) ranges based on height, gender, and age. Many experts have been searching for the idea of ​​finding the IBW using a formula for a long time. There are several popular formulas out there today, and our ideal weight calculator provides their results for direct comparisons.

ideal weight calculator (1)

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(Video) Ideal Body Weight (IBW) - Calculation Explained


The ideal weight according to common formulas:

Formulaideal weight
Robinson (1983)156.5 pounds
Muller (1983)155.0 pounds
Divina (1974)160.9 pounds
Hamwi (1964)165.3 pounds
Healthy BMI Range128.9-174.2 pounds

RelatedIMC calculator|body fat calculator|calorie calculator

How much should it weigh?

Almost everyone has tried to lose weight, or at least knows someone who has. This is largely due to the perception of an "ideal" body weight, which is often based on what we see advertised through various media such as social media, television, movies, magazines, etc. While Ideal Body Weight (IBW) is now sometimes based on perceived visual attractiveness, IBW was actually introduced to estimate doses for medical purposes, and formulas that calculate it are not available. not at all related to the appearance of a person of a certain weight. Since then, it has been discovered that the metabolism of certain drugs is based more on PCI than total body weight. Today, IBW is also used throughout sport, as many sports classify people based on their body weight.

Please note that IBW is not a perfect measure. It does not take into account the percentages of body fat and muscle in a person's body. This means that healthy and very fit athletes can be considered overweight based on their PCI. For this reason, the IBW should be viewed from the perspective that it is an imperfect measure and is not necessarily indicative of health or the weight a person should be striving for. It is possible to be above or below your "IBW" and still be perfectly healthy.

How much a human being should weigh is not an exact science. It depends a lot on each individual. To date, there is no measurement, be it PCI, Body Mass Index (BMI) or any other, that can definitively say how much a person should weigh to be healthy. They are just references, and it is more important to stick to healthy life choices, like eating. B. regular exercise, eating a variety of unprocessed foods, getting enough sleep, etc., rather than pursuing a specific weight based on a generalized formula.

That being said, many factors can affect your ideal weight; The most important factors are listed below. Other factors are health status, fat distribution, offspring, etc.


In theory, age should not be a determinant of PCI beyond the age of 14 or 15 for girls and 16 or 17 for boys, after which most people stop growing. In fact, men and women are expected to lose 1.5 and 2 inches in height, respectively, by the age of 70. It is important to remember that as you age, lean muscle mass decreases and it is easier to accumulate excess body fat. This is a natural process, although it is possible to reduce the effects of aging by adopting various habits, such as eating. B. Track diet, exercise, stress and sleep.

(Video) Ideal Body Weight Calculation


In general, women weigh less than men, despite having a naturally higher percentage of body fat. This is because the male body generally has more muscle mass and muscle is heavier than fat. Not only that, women generally have lower bone density. Last but not least, males tend to be taller than females.


The taller the person, the more muscle mass and body fat they have, resulting in more weight. A male that is similar in size to a female should weigh 10-20% more.

body frame size

Height is another factor that can have a significant impact on measuring your ideal weight. The size of the body structure is generally classified as small, medium, or large bone. It is measured based on the circumference of a person's wrist in relation to their height, as shown below.

For women:

  • Height less than 5'2"
    • Small bone = wrist circumference less than 5.5"
    • Middle bone = 5.5" to 5.75" wrist circumference
    • Large bones = wrist circumference greater than 5.75"
  • Height between 5'2" and 5'5"
    • Small bones = wrist circumference less than 6"
    • Medium bone = 6" to 6.25" wrist size
    • Large bones = wrist circumference greater than 6.25"
  • Height greater than 5' 5"
    • Small bone = wrist circumference less than 6.25"
    • Middle bone = 6.25" to 6.5" wrist circumference
    • Large bones = wrist circumference greater than 6.5"

For men:

(Video) BMI : How to Calculate BMI

  • Height greater than 5' 5"
    • Small bone = 5.5" to 6.5" wrist circumference
    • Middle bone = 6.5" to 7.5" wrist circumference
    • Large bones = wrist circumference greater than 7.5"

A large-boned person naturally weighs more than a small-boned person, even at the same height, making height a factor that can affect measures like PCI and BMI.

Formulas to find the ideal weight

IBW formulas were developed primarily to facilitate calculation of drug dosage. All formulas follow the same format of a base weight at a height of 5 feet with a specific increment of weight added per inch over the height of 5 feet. For example, if you are a 5 foot 10 male and you estimate your ideal weight using Devine's formula, you would add (2.3 × 10) kg to 50 kg to get 73 kg or ~161 lbs.

The formulas differ in the values ​​used based on the research of the scientists involved in their development and their findings. Devine's formula is the most widely used formula to measure PCI.

Formula GJ Hamwi (1964)

Masculine:48.0 kg + 2.7 kg per inch over 5 feet
Feminine:45.5 kg + 2.2 kg per inch in 5 feet

Invented for medicinal dosing purposes.

BJ Devine's Formula (1974)

Masculine:50.0 kg + 2.3 kg per inch over 5 feet
Feminine:45.5 kg + 2.3 kg per inch in 5 feet

Similar to the Hamwi formula, it was originally intended as the basis for medicinal dosages based on weight and height. Over time, the formula became a universal determinant of PCI.

JD Robinson-Formel (1983)

(Video) What Should My Ideal Weight Be? (Takes 5 Seconds BMI Chart) - Dr Alan Mandell, D.C.

Masculine:52 kg + 1.9 kg per inch over 5 feet
Feminine:49 kg + 1.7 kg per inch over 5 feet

Modification of the Divine Formula.

Formula DR Miller (1983)

Masculine:56.2 kg + 1.41 kg per inch in 5 feet
Feminine:53.1 kg + 1.36 kg per inch in 5 feet

Modification of the Divine Formula.

Healthy BMI Range

The healthy BMI range recommended by the World Health Organization (WHO) is 18.5 to 25 for both men and women. Using the BMI range, it is possible to determine a healthy weight for a given height.

BMI is a commonly used metric to determine IBW. It is widely used in the medical field as a quick indicator of possible health complications. In general, the higher the BMI, the more likely a person will suffer from health problems such as obesity, diabetes, heart disease, and many more. It is an indicator used by doctors to alert their patients to potential health problems, particularly when there is a noticeable progressive increase in BMI, and is currently the official metric used to classify people into various degrees of obesity.

Healthy BMI Range for Children

All of the above formulas apply to adults over 18 years of age. For children and adolescents, see the following BMI tables published by the Centers for Disease Control and Prevention (CDC). The CDC recommends that children have a BMI between 5they 85thePercentiles based on their age.

(Video) How to Calculate Ideal Body Weight || Tannhauser Method

  1. CDC BMI chart for children ages 2-20
  2. CDC BMI chart for girls ages 2 to 20

Limitations of our IBW calculator

There are limitations to all formulas and methods. Because the formulas are designed to apply to as many people as possible, they may not be highly accurate for everyone. The formulas only take into account height and gender, and do not account for physical disabilities, people on the extreme end of the spectrum, activity levels, or the ratio of muscle mass to body fat, also known as composition. bodily. Our ideal weight calculator is intended to be used as a general guide based on commonly used formulas, and its results are not intended to be strict levels that a person must achieve to be considered "ideal weight."


Are ideal weight calculators accurate? ›

Truth be told, none of them is perfectly accurate, as there are a lot of factors influencing it. For example, for people with a lot of muscle mass (and high lean body mass), their ideal weight will tend to be more than indicated by the results they obtain.

What is the most accurate ideal weight formula? ›

To determine body weight in pounds, the desired BMI is multiplied by 5 and then add BMI/5 lb for each inch >5 ft in height. For instance, for a BMI of 20, start with 100 lb for a height of 5 ft and add 4 lb for each additional inch of height. For a BMI of 25, start with 125 lb and add 5 lb for each inch of height.

How much weight should I weigh for my age? ›

Battle of the sexes: Weight based on your age and gender
Age (years)Lower percentile weight (lbs)“Average” percentile weight (lbs)
14–1585–95 or less90–141
15–1695–104 or less100–152
16–17104–112 or less110–160
17–18112–117 or less117–166
14 more rows
Mar 2, 2021

How much should a 5 3 female weigh? ›

Height and Weight Chart
5' 3"107 to 140 lbs.141 to 168 lbs.
5' 4"110 to 144 lbs.145 to 173 lbs.
5' 5"114 to 149 lbs.150 to 179 lbs.
5' 6"118 to 154 lbs.155 to 185 lbs.
17 more rows

Is ideal body weight better than BMI? ›

A person who has normal weight obesity is just as unhealthy as someone with a high BMI. Research on body fat percentage has improved in recent years, and in some cases, this measurement may provide a better picture of an individual's risk of weight-related diseases than BMI.

How much should a 5 5 female weigh? ›

Ideal Weight Chart
5' 4"117 - 143 lbs.5' 4"
5' 5"122 - 150 lbs.5' 5"
5' 6"128 - 156 lbs.5' 6"
5' 7"133 - 163 lbs.5' 7"
28 more rows

How much should a 5 4 female weigh? ›

The National Heart, Lung, and Blood Institute indicates that a healthy weight for a woman who is 5 feet, 4 inches tall ranges from 110 to 140 pounds with a BMI of 19 to 24.

Is there a better calculation than BMI? ›

While your BMI is more of a rough estimate of the amount of body fat you have, calculating your body fat percentage tends to be more accurate, as it takes more factors into account than just height and weight to better distinguish fat from non-fat tissue.

Does my age affect my weight? ›

As you age, your muscle mass decreases and your fat mass increases. Fat is less metabolically active than muscle—you don't need as many calories to maintain fat as you do to maintain muscle. Hormonal changes can also lead to weight gain.

Does age affect ideal weight? ›

Older adults tend to lose muscle and bone, so more of their body weight is likely to come from fat. Younger people and athletes may weigh more due to strong muscles and denser bones. These realities can skew your BMI number and make it less accurate for predicting exact body fat levels.

Does age matter in body weight? ›

Changes in total body weight vary for men and women. Men often gain weight until about age 55, and then begin to lose weight later in life. This may be related to a drop in the male sex hormone testosterone. Women usually gain weight until age 65, and then begin to lose weight.

What is the perfect weight for 5.3 feet? ›

Hi, ideal body weight for a 5.3" is 55-60 kgs.

How many pounds is overweight for a girl? ›

This table shows us that a woman who is 5 ft. 4 in. tall is considered overweight (BMI is 25 to 29) if she weighs between about 145 and 169 pounds. She is considered obese (BMI is 30 or more) if she is closer to 174 pounds or more.

What is the BMI for a 5 2 woman? ›

Body Mass Index (BMI) Chart
Body Mass Index Chart
Height (Inches)Weight in Pounds
22 more rows

Is a size 10 fat? ›

It completely depends on the woman's height. In standard women's clothing sizes, Size 10 is considered “Medium”. A woman who is 4′ 10″ or less and wears size 10 Petite clothing would likely be considered overweight.

What is a healthy belly size? ›

What should your waist measurement be? For men, a waist circumference below 94cm (37in) is 'low risk', 94–102cm (37-40in) is 'high risk' and more than 102cm (40in) is 'very high'. For women, below 80cm (31.5in) is low risk, 80–88cm (31.5-34.6in) is high risk and more than 88cm (34.6in) is very high.

Is there really an ideal body weight? ›

Weight fluctuates with body size, so there's no “ideal” body weight for all people. Everyone has a different body frame, body fat distribution, and height, all of which determine your healthiest weight range.

What is the perfect size for a woman? ›

The specific proportions of 36–24–36 inches (90-60-90 centimeters) have frequently been given as the "ideal", or "hourglass" proportions for women since at least the 1960s (these measurements are, for example, the title of a hit instrumental by The Shadows).

What is the average weight for American female? ›

The average American woman 20 years old and up weighs 170.6 pounds and stands at 63.7 inches (almost 5 feet, 4 inches) tall. And the average waist circumference? It's 38.6 inches. These numbers may or may not be surprising to you.

How much should a 5 4 female weigh BMI? ›

Weight and height guide chart
HeightNormal weight BMI 19–24Overweight BMI 25–29
5 ft 4 in (64 in)110–140 lb145–169 lb
5 ft 5 in (65 in)114–144 lb150–174 lb
5 ft 6 in (66 in)118–148 lb155–179 lb
5 ft 7 in (67 in)121–153 lb159–185 lb
15 more rows

What is a healthy BMI for a 5 4 female? ›

A BMI of 18.5–24.9 is considered normal or healthy for most women.

How many calories should a 5 4 female eat? ›

The reference woman is 5 feet 4 inches tall and weighs 126 pounds. Estimates range from 1,600 to 2,400 calories per day for adult women and 2,000 to 3,000 calories per day for adult men.

Why does my BMI say I'm overweight when I'm not? ›

BMI doesn't account for body composition, which means it misses the difference between muscle mass and fat. Because muscles are more dense and heavier than fat, bodybuilders and other professional athletes like football players are often considered obese or overweight based on their BMI alone.

What is replacing BMI? ›

A new study found that your waist-to-hip ratio might be a more accurate measure of what's a healthy weight for you than your BMI. If you're concerned about what these numbers mean for your health, there are steps that you can take to reach a weight that supports your health.

Why do we say goodbye to BMI? ›

We active folk tend to have a higher proportion of muscle tissue, which by nature is denser than fat tissue. That means we sometimes see big numbers on the scale even if we have relatively low body fat. BMI also says nothing about how your fat is distributed.

At what age do females gain the most weight? ›

Here's something to ponder as you consider whether to ditch that New Year's resolution to exercise more: Your 20s are your prime weight-gaining years, according to data from the CDC. The charts above are approximations of typical lifetime weight gain, based on CDC data, which is reported in 10-year increments.

At what age do adults gain the most weight? ›

Those extra pounds were packed on in early adulthood: The average American gained about 17.6 pounds from their mid-20s to mid-30s, the study found. Meanwhile, the average person gained about 14.3 pounds between their 30s and 40s, 9.5 pounds between their 40s and 50s, and 4.6 pounds between their 50s and 60s.

At what age is losing weight so hard? ›

As we reach our 30's, our bodies usually need less energy, meaning we may not be able to eat the way we did in our 20's. Then, as you move past 40 and head to middle age, changes in muscle, hormones and metabolism all make it harder to stay trim.

Why do I weigh so much but don't look it? ›

Muscle is denser than fat, and as it is more compact within your body, as you gain muscle mass, you end up looking thinner, no matter your physical weight. So, if you've been doing a lot of strength training lately, it's likely this is the reason that you're looking fantastic but not dropping those numbers.

Does your stomach shrink as you get older? ›

Despite what you may have heard, your stomach doesn't actually shrink with age, Hobbins says. But there do seem to be changes to the stretchiness of your tummy that happen alongside aging that mistakenly tell the brain you're full when you're not, she says, leading some older folks to lose weight as they age.

At what age do you start to feel old? ›

According to the research, the average American starts feeling old at the age of 47. Similarly, the average respondent starts to really worry about age-related bodily changes around 50 years old.

At what age does health decline? ›

July 25, 2005 -- Our fitness levels naturally begin a slow decline after our 20s and plummet once we reach our 70s, according to a new study. But the good news is that regular exercise may compensate for some of those natural losses and help your body feel years younger.

How do you know if you are aging too fast? ›

The most common signs of premature aging include: Skin changes like wrinkles, age spots, dryness, loss of skin tone, hyperpigmentation around your chest and sagging. Hair loss or graying hair. Gaunt face (sunken cheeks).

At what age does a man start slowing down? ›

Physical capacity and muscle strength generally peak between 20 and 30 years of age and then start to decline [R]. This is partly due to the fact that the body isn't able to provide muscles with oxygen at the same high rate it did before due to a drop in cardiac output and VO2Max [R].

Are ideal weight charts realistic? ›

Although BMI wasn't entirely accurate at determining who was overweight or not, it was very accurate at determining who was obese or not. The scientists found that 95% of men and 99% of women who were obese according to the BMI chart were, in fact, actually obese according to their measured body fat percentage.

How accurate are handheld body fat calculators? ›

As for accuracy, a handheld BIA device has about a ± 3.5- 5% margin of error. To get the most accurate reading when using a BIA, it is best to avoid exercising, showering, drinking alcohol, drinking a large amount of water or eating a meal one to two hours prior to a reading.

Can BMI calculators be wrong? ›

As most of us fitness-focused folks have likely heard, BMI is far from a perfect measurement. Much of the time, and often when it really counts, the BMI measurement may actually overestimate or even underestimate a person's body fat.

What body weight is attractive? ›

(27) found that the most frequently selected ideal body had a BMI of 19.79, closely followed by an underweight ideal of 18.26. Ahern et al. (28) found that a BMI of 20 was considered the most attractive, while Swami et al. (29), and MacNeill and Best (30), found that an underweight body was most frequently selected.

Should you weigh more as you age? ›

As we get older, our bodies don't respond the same way to weight loss efforts, and science has some explanations to offer. As we age we naturally tend to gain weight, to the tune of 1 to 2 pounds (lb) per year, according to a review by the Agency for Healthcare Research and Quality.

What is the most accurate body fat scanner? ›

DEXA (Dual-Energy X-Ray Absorptiometry)

There are many ways of getting your body fat tested, but most experts will agree that the DEXA (Dual-Energy X-ray Absorptiometry) scan is the most accurate testing technology available.

What is the most accurate body fat tester? ›

A DEXA (dual-energy X-ray absorptiometry, best known for bone density testing) scan is the most accurate way of measuring body fat percentage, but — as a medical imaging test — it's not meant for routine use.

Which body fat calculator is most accurate? ›

From an accuracy perspective, hydrostatic weighing has perhaps the highest level of accuracy, while bioelectrical impedance and BMI/circumference measures have the lowest.

What is a better indicator than BMI? ›

Scientists say waist-to-hip ratio better measure for healthy weight than BMI.

What BMI Cannot tell you? ›

Also, BMI does not distinguish between excess fat, muscle, or bone mass, nor does it provide any indication of the distribution of fat among individuals.


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