Optimal weight for a woman calculator. Normal human weight - how to calculate

You can calculate the body mass index using the formula BMI \u003d weight / height ^ 2, the calculation is simplified using the online BMI calculator. Body mass index is calculated as a ratio of height and weight, for men and women, these figures will be different. Depending on the BMI score, you can find out what recommendations to follow if you are overweight, and, conversely, if you are underweight.

Body mass index calculator

BMI table

The BMI calculator calculates correctly, only for adults (over 18).

Instructions for determining BMI

The BMI calculator has mandatory fields to fill in, where you should specify:

weight (in kilograms);
height (in centimeters);
press the button to calculate the indicators.

The resulting indicator (index) of the ratio of height and weight should be compared with the BMI table.

Underweight. The owners of underweight can become for several reasons - an innate constitution (thin physique), malnutrition (unbalanced diet), hormonal disorders, too fast metabolism, and hyperglycemia - the body's ability to absorb glucose at a high speed. Hormonal disorders should be corrected by an endocrinologist. The remaining violations require self-correction of dietary errors: increase the amount of carbohydrates and fats. Much more energy must be absorbed than such an organism spends, although this happens quite quickly. The use of simple carbohydrates is not prohibited. Loads should be directed at, aerobic training will only slow down the process of gaining body weight.
Normal weight. Happy owners of the norm should only follow in the same spirit. With a balanced diet and moderate exercise, body weight will be kept in place. When overeating, BMI can increase, so you should not increase calories so that later you do not resort to diets.
Overweight. Those whose index exceeded 25 should reconsider their lifestyle. First, review your diet. If the menu is dominated by carbohydrates (flour, sweet), you should reduce their consumption to a minimum. Eliminate sugary foods and increase your protein content in your diet. Second, analyze your physical activity. With a fixed lifestyle, fats are especially well absorbed, since the body does not spend energy, which means it accumulates subcutaneous fat. Start exercising, but take care of your joints, with excess weight, the joints are already subjected to stress.
Obesity. One of the causes of obesity is not only an excess of calories and an inactive lifestyle, but also hormonal disorders. Hormonal imbalances, such as an excess of female hormones and a lack of male hormones, can lead to the accumulation of excess fat, not to mention diseases such as diabetes. This problem can be solved only with the help of hormone therapy. If there are no violations, it is necessary to follow the measures, as in the recommendations for overweight. In any case, reduce the total caloric content of the diet, remove simple carbohydrates (sweets, and even fruits), walk more. AND do not eat 3-4 hours before bedtime.
Severe obesity. In case of severe obesity, you should consult a doctor. Rather, this degree of obesity is provoked by more than just nutrition. It is necessary to take tests for hormones and identify the content of enzymes, the possible absence of which is unable to digest certain nutrients - fats and carbohydrates. Otherwise, proper nutrition and hiking will not interfere.

Underweight. In men, there are also a number of reasons for underweight - hormonal disorders, hyperglycemia, an accelerated metabolism and malnutrition. With high intensive loads and work associated with physical labor, an excess of calories in the diet should be ensured, exceeding the amount of carbohydrates over proteins and fats. You need to eat often, at least 6 times a day. Workouts should last no more than an hour.
Normal weight. With proper nutrition and physical activity, follow the usual way of life, without significantly changing anything in the diet and training.
Overweight. In men, a frequent case of overweight is not only an addiction to food, but also to drinks such as beer. The content of phytoestrogens in the composition of beer increases the production of female hormones, which leads to the accumulation of female-type fat (belly and thighs). In any case, there is the possibility of a hormonal imbalance, in the direction of increasing estrogens and reducing androgens. If the cause is a poor diet, eliminate high-glycemic foods from your diet and move more.
Obesity. In men, as in women, the cause of obesity can be endocrine disorders, as well as an excess of calories in the diet. Overeating can also be negatively affected by socio-psychological factors. Therefore, you should exclude all diseases and switch to a low-carbohydrate diet that is high in protein and fiber.
Severe obesity. It is urgent to consult a doctor endocrinologist or gastroenterologist. You can also take measures to prevent the possibility of gaining even more weight, which are recommended for overweight and obesity.

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website found 5 ways to calculate the optimal weight used by fitness professionals.

Method 1. Quetelet index

If you know the body mass index, you can judge obesity or underweight. The index is calculated for adult men and women from 20 to 65 years old. The results may be false for pregnant and lactating women, athletes, the elderly and adolescents (under 18).

The resulting number will be your index. The norm for men is 19-25. For women - 19-24.

Method 2. Volumes

The Quetelet index is a good indicator of the amount of fat in the body, but does not indicate how fat is distributed, in other words, it does not give a visual picture. But you can check your body for ideality using another formula.

The distribution of fat throughout the body is determined by the ratio: waist circumference (at the level of the navel) divided by the volume of the buttocks. The norm for men is 0.85; for women - 0.65 - 0.85.

Method 3. Taking into account age

It has been proven that the weight of a man and a woman should gradually increase with age - this is a normal physiological process. Kilograms, which some people consider "superfluous", in fact, they may not be. You can use the formula to determine the optimal weight depending on age.

P - in this case, height, and B - age in years. Body weight \u003d 50 + 0.75 (P - 150) + (B - 20): 4

Method 4. Brock's formula

One of the most popular methods for calculating ideal weight is Brock's formula. It takes into account the ratio of height, weight, body type and age of a person.

Brock's formula for people under 40 years old: height (in cm) minus 110, after 40 years - height (in cm) minus 100.

At the same time, people with an asthenic (thin-boned) body type should subtract 10% from the result, and people with a hypersthenic (broad-boned) body type should add 10% to the result.

How to determine your body type? It is enough to measure the circumference of the thinnest place on the wrist with a centimeter.

Method 5. Nagler formula

There is a Nagler formula that allows you to calculate the ideal ratio of weight and height. For 152.4 cm of height there should be 45 kg of weight. For every inch (that is, 2.54 cm) over 152.4 cm, there should be another 900 g. Plus another 10% of the resulting weight.

Method 6. Formula John McCallum

One of the best formulas was created by expert methodologist John McCallum. Its formula is based on measuring the girth of the wrist.

The circumference of the wrist multiplied by 6.5 is equal to the circumference of the chest.
85% of the chest circumference is equal to the circumference of the hips.
To get the waist circumference, you need to take 70% of the chest circumference.
53% of the chest circumference is equal to the thigh circumference.
For the neck circumference, you need to take 37% of the chest circumference.
The circumference of the biceps is about 36% of the circumference of the chest.
The girth for the lower leg is slightly less than 34%.
The circumference of the forearm should be equal to 29% of the circumference of the chest.

But not all physical data will exactly correspond to these ratios, the numbers have an average, average value.

A few more options for the ratio of height and weight:

The physique is considered ideal if the waist circumference is 25 cm less than the circumference of the hips, and the circumference of the hips is approximately equal to the circumference of the chest.
The waist circumference should be equal to: height in centimeters - 100. That is, a woman with a height of 172 cm will be proportionately folded if the waist circumference is 72 cm, the hips and chest circumference is about 97 cm, that is, if she wears clothing size 48.
If the circumference of the hips is less than the circumference of the chest, and the circumference of the waist is less than the circumference of the hips by 20 cm, then such a figure is called an "apple". If the chest circumference is less than the hip circumference, and the waist circumference is 30 cm or more less than the hip circumference, this is a pear-shaped figure.
For women and girls of average height - from 165 to 175 cm - this observation turned out to be fair. Their waist circumference in centimeters is approximately equal to their weight in kilograms. One kilogram of weight loss gives a decrease in the waist by one centimeter.

What does the ideal weight of a woman mean, what indicators are considered optimal for the stronger sex? In general, these values are a combination of a number of factors: gender, height, body volume, psychological state, tendency to be overweight, and others. They are taken into account using methods for calculating indicators that are close to ideal. When using them, it is worth remembering that the average results are given. In real life, they are guided not by numbers, but by a feeling of comfort and inner harmony.

growth, age;
the ratio of mass, body volume;
Brock's method, Quetelet;
formulas of Nagler, John McCallum, Devin.

Body mass index (BMI)

BMI is an indicator that determines how proportional the ratio of weight and height of a person is. Doctors often calculate the optimal method of therapy for dystrophy and obesity. The index is useful to know for those who want to conduct a comprehensive assessment of the state of health and calculate the number of missing or excess kilograms. This indicator is considered simple: it is necessary to divide a person’s weight (in kg) by his height (in meters), squared.

The following BMI values are distinguished: less than 15 - acute weight loss; from 15 to 18.5 - underweight; from 18.5 to 24 - normal weight; from 25 to 29 - overweight; from 30 - 40 - obesity; more than 40 - severe obesity.

People with a high BMI (more than 35) find it difficult to move around, overcome distances on foot, and climb stairs. Excess fat causes serious diseases:

hypertension, migraine;
atherosclerosis, varicose veins;
diseases of the joints, heart;
diabetes mellitus, skin lesions.

It is worth getting rid of excess weight by developing a set of measures, including diet, physical activity, sleep, rest, normalization of the psychological state.

Going in for sports, balancing the diet is also recommended in cases where the BMI is normal, and the figure looks haggard, middle-aged, the skin becomes sagging, flabby. Correct the situation with special diets, moderate sports activities aimed at gaining lean muscle mass.

Optimal indicators for growth, age

How to understand, taking into account age, height, that you have extra pounds? It is recommended to use the calculation developed by WHO. You can calculate the ideal body weight for the fairer sex as follows:

height (centimeters) multiplied by 3, subtract 450, add age (years);
multiply the resulting figure by 0.25, add 40;
a comparison table will help you check the result.

Another calculation method will help determine the excess weight of men:

height in centimeters is multiplied by 3, subtract 450, age is added;
the result obtained is multiplied by a factor of 0.25, 45 is added;
check the data in the table.

Brock's method

Calculate excess weight will help the technology developed by the French surgeon anthropologist Paul Brock. Based on the height of a person. Up to 165 cm, subtract 100, 166-175 cm, subtract 105, with indicators more than 170 cm - 110. The creator of the formula suggests adjusting the determined number, taking into account the physique:

Normosthenic (normal) - the figure is proportionately folded, the height is average, the legs are slender, the waist is thin. The muscles are well developed, the fat layer is the minimum necessary for good health.
Asthenic (small) - the body is elongated, the transverse parameters are less than the longitudinal ones. The chest is narrow, flat, the neck, the limbs are thin, long, the face of the types is thin, the nose is thin. The muscles of asthenic people are poorly developed, the tendency to be overweight is minimal. Obesity occurs with serious diseases: after surgery, trauma, metabolic disorders, hormonal disruptions.
Hypersthenic (large) - the transverse parameters of the body are greater than the longitudinal ones, the bones, the skeleton are wide, heavy, the legs are short and dense. A person's height is usually less than average, the tendency to be overweight is high.

Thin-boned asthenics with transverse dimensions are much smaller than longitudinal ones; it is necessary to subtract 10% from the resulting figure. Hypersthenics with short legs, wide hips, chest should add 10% to the resulting indicator. Normasthenics with a proportional body do not need to change the final value, the main one is to consider the final figure.

Brock's technique, the nuances of calculations

Using the method, the parameter of the calculated ideal weight is corrected for age. Nutritionists, naturopaths experts consider the figures to be true for the fairer sex 40-50 years old. Girls from 20 to 30 years old should reduce the numbers by 10-12%, ladies 50+ add 5-7%.

It makes no sense to find out your excess weight by Brock's method for adolescents under 18, pregnant, lactating women. It is irrelevant for athletes, bodybuilders, those whose training is aimed at actively building muscle mass. For them, there are other ways to calculate the ratio of adipose tissue, muscles, which will help determine thinness, obesity.

Quetelet index

Extra pounds will help determine the formula for calculating Quetelet. The results obtained show the degree of obesity, thinness of women, men aged 20-65 years. The results of calculations are distorted during pregnancy, feeding, adolescence under 18, in adults aged 46+, athletes.

To determine normal weight, BMI is calculated: mass (kilograms) is divided by height squared (square meters). Example:

I have weight 67, height 170;
it turns out: 67: (1.7 x 1.7) = 23.18

The results are compared with the table data:

Quetelet formula, taking into account age, physique

Norms are calculated according to a formula that takes into account physique and age. When calculating, the mass (grams) is divided by height (centimeters), the data obtained are compared according to the table.

The Quetelet index indicates the amount of fat in the body, but does not allow you to know how the layer is distributed over different parts of the body. The formula described below will help to check the figure for ideality.

Dependence of mass on body volumes

How to find out by the volume of the figure that it's time to go on a diet? If different methods have been tried, but the appearance is repulsive, a calculation option that takes into account volumes will help to check for excess weight:

measure the waist circumference at the level of the navel, cm;
determine the volume of the buttocks, cm;
the first indicator is divided by the second, the result is compared with the data corresponding to the norm.

How much should it be? The coefficient is as follows: women - 0.65-0.85, men - 0.85-1.

John McCallum Method

John McCallum's formula is considered accurate, based on measuring the circumferences of various parts of the body. The obtained indicators are average, suitable for people of different ages, builds, according to them you will understand for sure whether the figure is proportional or not.

How is it determined whether there is overweight according to McCallum? A theoretical scientist suggested focusing on the circumference of the wrist (cm). First we measure, the result is multiplied by 6.5. Ideally, the figure will correspond to the girth of the chest. Further, taking the obtained data as a basis, we calculate the percentage ratio of the parameters of the wrist to the rest of the body:

70% - waist circumference;
85% - hip circumference;
37% - neck girth;
53% - thigh circumference;
29% - forearm girth;
36% - bicep circumference;
34% - calf girth.

The formula for calculating with a tendency to completeness

With an innate tendency to be overweight, there is a separate technique that determines the parameters of the figure. A detailed description is found in the book Diet for People with a Low Metabolism by Barbara Edelstein.

The calculations are carried out in stages. First, we determine what weight could be with a normal metabolism. Example: the optimal weight is 50 kilograms, we add 1 kilogram to it for each centimeter of growth over 150. To the resulting figure we add ½ kilogram for each year, starting from 25. In general, no more than 7 kilograms are added.

Let's correct the data:

add 4.5-7 kilograms;
then we add 4-7 kilograms (if the mass is more than 90);
plus 2-3 kilograms (if body weight is more than 100 kg).

Example: the height of a 48-year-old lady is 155, weight is 95. We get: 45 + 1 x (155 - 150) + 7 + 7 + 7 = 71 kilograms.

The resulting figure is a reference indicator for a particular case. Losing weight up to 60-62 kilograms will cause health problems. If in the future the lady wants to get better, she will quickly return to her original positions. Moreover, it will become fuller, while the appetite will be uncontrollable, which threatens with obesity.

How not to make mistakes in calculations

Using the formula you like, take into account that the parameters of the figure change depending on the time of day, day of the week, month. This is normal, because each organism is subject to individual physiological fluctuations. Body weight fluctuates due to nutrition, rest, sleep, climate, well-being, various factors. Accurate data are obtained by weighing no more than 1 time per week.

The female body is a thin structure, where the mass fluctuates depending on the critical days, the amount of water drunk. If in the morning the weight was 61 kilograms, and by the evening it became 62 - do not panic, urgently lose weight, connect a diet. Such fullness is a temporary phenomenon that does not deserve close attention.

Overweight bodybuilders, athletes - a common thing. Their training in most cases is aimed at building a relief muscular figure. The muscles of people involved in sports weigh twice as much as body fat. This is a normal, natural phenomenon.

BMI, is it worth blindly believing the results?

Body mass index is a relative value, based on statistics that take into account the peculiarities of the physique of people from different countries. In most cases, BMI is higher than normal, for example, if a person’s bones are wide, heavy, the figure is muscular, dense. This is normal, once again proves that you do not need to immediately go on a diet, exhaust the body with workouts.

According to WHO data, more than half of the population in Russia suffers from stage I obesity. If we compare the US data, it turns out that Americans are much more likely than Russians to overeat and become obese.

Nutritionists, naturopathic doctors believe that a person should monitor their own weight and well-being. This mobilizes the body, increases the desire to lead a healthy lifestyle, adhere to the rules of nutrition, play sports.
Psychologists oppose BMI calculations, deeply convinced that online calculators are to blame for the growing number of users who are dissatisfied with the figure.

Whatever calculation formula you choose, focus on general well-being, listen to the sensations inside the body. A sharp decrease in weight is fraught with serious consequences, especially in chronic diseases. If it is difficult for you to determine how severe obesity is, you should resort to the help of a nutritionist.

Calculate your ideal weight Almost everyone has tried at least once. There are many formulas that can be used to determine if your body weight is normal. The simplest method for calculating normal body weight is: "height minus 100" for men and "height minus 110" for women.

However, this approach does not give a true idea of whether this particular person is overweight.

It is clear that asthenic people will weigh less than normosthenics, and normosthenics will weigh less than broad-boned people. In addition, an excess of muscle mass in an athlete can be interpreted as obesity, or vice versa, the body weight of an asthenic teenage girl can be considered insufficient.

Ideal weight

Currently ideal weight(normal body weight) is determined using a number of indicators that take into account the characteristic features of the structure of the individual. This approach allows you to more accurately determine whether you are overweight, which, by the way, from a medical point of view, may not be obese at all.

Degrees of obesity

Although we have become accustomed, following the fashion, to hang the tag "obesity" on anyone who does not look like anorexic catwalk beauties, there are a number of medical indicators for diagnosing this serious disease that are very different from our aesthetic ideas about beauty.

Endocrinologists distinguish 4 degrees of obesity. With 1 degree of obesity, excess body weight exceeds ideal or normal - 10-29%, with 2 degrees of obesity - by 30-49%, with 3 degrees of obesity - by 50-99%, with 4 degrees of obesity - 100% more.

To determine what degree of obesity a particular person suffers, it remains to find out what is normal, or ideal body weight.

What should be the ideal weight (ideal body weight)

The most scientifically substantiated, justified in practice and easy to measure is such an indicator as body mass index (BMI). Body mass index allows you to determine the degree of excess or insufficiency of body weight.

Determination of body mass index (BMI)

From a medical point of view, body weight is considered normal in a fairly wide range, which depends on body structure, age, gender, race, etc. The ideal body weight will be, respectively, the body weight, taking into account all these indicators.

Body mass index can be calculated using the formula:

Body weight in kilograms should be divided by height in meters squared, i.e.:

BMI \u003d weight (kg) : (height (m)) 2

For example, a person's weight \u003d 85 kg, height \u003d 164 cm. Therefore, BMI in this case is: BMI \u003d 85: (1.64X1.64) \u003d 31.6.

The body mass index was proposed as a determinant of normal body weight by the Belgian sociologist and statistician Adolf Ketele ( Adolphe Quetelet) back in 1869.

Body mass index is used to determine the degree of obesity and the risk of developing cardiovascular disease, diabetes and other complications associated with overweight and obesity.

Body mass types	BMI (kg / m 2)	Risk of comorbidities
underweight	<18,5	Low (increased risk of other diseases)
normal body weight	18,5-24,9	Ordinary
Overweight	25,0-29,9	elevated
Obesity I degree	30,0-34,9	High
Obesity II degree	35,0-39,9	Very tall
Obesity III degree	40	Extremely high

The table below shows the parameters at which body weight remains within the normal range from a medical point of view.

normal weight(marked in green in the table):

Yellow indicates overweight, red indicates obesity.

In addition, a number of other indices can be used to determine normal body weight:

Broca's index is used with a height of 155-170 cm. The normal body weight in this case is (height [cm] - 100) - 10 (15%).
Breitman index. Normal body weight is calculated by the formula - height [cm] 0.7 - 50 kg.
Bornhardt index. Ideal body weight is calculated by the formula - height [cm] chest circumference [cm] / 240.
Davenport index. The mass of a person [g] is divided by the height [cm] squared. Exceeding the indicator above 3.0 indicates the presence of obesity. (obviously this is the same BMI, only divided by 10)
Oder index. Normal body weight is equal to the distance from the crown to the symphysis (pubic articulation of the pubic bones) [cm] 2 - 100.
Noorden index. Normal weight is height [cm] 420/1000.
Taton index. Normal body weight = height-(100+(height-100)/20)

In clinical practice, the Broca index is most commonly used to assess body weight.

In addition to height and weight indicators, the method for determining the thickness of the skin fold proposed by Korovin can be used. According to this technique, the thickness of the skin fold in the epigastric region is determined (normally -1.1-1.5 cm). An increase in the thickness of the fold to 2 cm indicates the presence of obesity.

abdominal obesity

Another measurement option that is proposed to determine the degree of obesity along with the calculation of the body mass index is the measurement of waist circumference, since it is believed that the deposition of fat in the visceral-abdominal type (on the internal organs) is the most dangerous for health. The normal waist size for women is not more than 88 cm and for men - no more than 106 cm.

Although the indicators here are, of course, more subjective, because the waist circumference largely depends on the height and build of the person. Thus, women with a pear-shaped figure may have obesity on the hips and in the lower body, but the waist remains thin, at the same time, women with an apple-shaped figure (thin legs, but an excess waist) will recognized as suffering from abdominal obesity.

body volume index

One of the relatively new methods for determining overweight is based on the use of three-dimensional scanning, which calculates body volume index(Engl. Body Volume Index, BVI). This method of measuring obesity was proposed in 2000 as an alternative body mass index, which does not provide accurate information about the risks of obesity for each individual patient. At the moment, the method has passed clinical trials in the USA and Europe as part of a two-year project. Body Benchmark Study.

The topic of ideal weight has been of concern to physicians and ordinary people for a long time, so today a large number of different formulas and algorithms have been created, each of which interprets this concept in its own way. Some of them are distinguished by their simplicity, but their disadvantage is a very high error, which can significantly reduce the adequacy of its application in a particular case.

So, one of these options is the so-called Broca, named after the French scientist who developed it. She proposes to calculate the ideal weight of a man under the age of 40 as follows: subtract 100 from the height expressed in centimeters. At the same time, at the age of over 40, it was proposed to calculate the ideal weight by subtracting the number 110 from the same parameter. Thus, a man aged 30 years, having a height of 180 centimeters, according to this formula, should weigh 70 kilograms.

Other formulas, on the contrary, were quite complex and used a large number of different coefficients. Such, for example, is the Cooper formula, according to which the ideal weight for a man can be calculated based on the following expression: (height in centimeters * 4: 2.54 - 128) * 0.453. The same man described above, according to this formula, should weigh 70.4 kilograms.

Body mass index

However, all these and many other formulas have one significant drawback: they derive a single average value based on the height of a man, without taking into account that, depending on many other parameters, for example, muscle mass, body type, and others, the normal range for different men may differ significantly.

Therefore, today in medicine an indicator has been adopted that has greater variability in determining the ideal weight. It is called the body mass index (BMI) and is measured quite simply: to calculate BMI, you need to divide the weight, expressed in kilograms, by the square of height, expressed in meters. For example, for the man described above, the BMI would be 21.6.

The normal weight of a man, according to the developers of the index, is within the BMI range from 20 to 25. Thus, by performing simple arithmetic calculations, it is possible to determine the boundaries of normal weight for a man with a height of 180 centimeters. According to this indicator, its weight should be in the range from 64.8 to 81 kilograms. Moreover, all values within this interval are normal and do not require a man to gain weight or get rid of extra pounds.