How to find out your overweight table. Normal body weight and obesity
There is such a value that differs for women and men as the weight and height index (BMI), which helps to assess the correspondence of a person’s mass with his height.
It helps to identify excess, normal or missing weight, which is very important if you need to treat the body or to self-correct your figure.
What is "body mass index"
Back in the 19th century, doctors determined that the appearance of diseases is directly related to the presence of fatty matter in humans. To determine the optimal weight, it was necessary to calculate the ratio of human height to its weight.
In 1869, the doctor A. Quetelet invented a method for calculating the index, which allows you to assess how much body weight fits the existing height. Over time, many scientists have made various corrections and new formulas have appeared. But the rules have varied over time.
Recently, the optimal BMI has decreased, and this has led to an increase in the number of people who are overweight and obese.
Optimal body weight - the established range within which weight can move without affecting the functioning of the body
How is BMI determined?
Sometimes, the calculation of BMI does not provide accurate data. This is due to the fact that people have a different ratio between muscle and fat mass, which is due to many factors. Therefore, individuals with the same indicator do not look the same.
For a correct calculation of BMI, age, gender and type (thin-boned, medium-boned and wide-boned) build, established based on measurements of the girth of the wrist, are taken into account.
An objective value is considered to be the proportion expressed as a percentage between fat and musculoskeletal tissue for women - 13-20%, for men - 10-15%.
Thin people with narrow bone formation have a lower standard compared to owners of large forms. Sometimes, to determine the constitution of the body, the volume of the chest is measured.
Due to the peculiarities in the structure of the female and male figure, their BMI is different. It is also necessary to take into account the age of the person being checked, because the optimal weight will differ for a young and an elderly person.
When analyzing the body mass index (the ratio of weight and height), one should take into account the fact that for men and women it will be different due to the peculiarities in the structure of the female and male figures. Over the years, a fat layer is added that is heavier than muscle tissue. Because of this, a mature person can have an ideal ratio and be overweight at the same time.
Special calculations are used to determine the optimal mass index of children. In a special way, BMI is calculated for athletes. Thanks to training, they have powerful muscles, and their ideal weight will be much higher than that of an ordinary person.
How to calculate BMI using formulas
When calculating the index of weight and height, they mainly use such simple actions: for women, 110 is subtracted from height (cm), and 100 for men. But in this formula, age, constitution of the individual, and other factors are overlooked.
It is quite difficult to calculate the correct indicator on your own, taking into account all the subtleties. For people who want to maintain their weight in order, a calculator was invented - online. 
You just need to write down your data (height, weight) in a certain form and after 2-3 s. the display will show the result. Additionally, mention of the circumference of the hips and wrists may be required.
The results obtained must be compared with the table, and a conclusion should be made about the body weight of the subject.
Calculation of body mass index by different methods
There are various ways to calculate the index, by which it is possible to independently determine your suitable weight and determine how many kilograms you need to lose. It is very important to remember that none of the methods will give an accurate idea of the existing body composition, because. every organism has its own characteristics.
Only a highly qualified specialist will help to correctly assess the condition of the patient's physical body. If the available weight is slightly different from the calculated norm, while feeling great, do not panic. Most likely, this is the individual norm.
Brocca's formula
The most recognized and common is the formula of the French anthropologist Brock, suitable for people of normal build who are above 150 cm and below 185 cm.
Having a certain growth, you need to subtract the coefficient:
- up to 165 cm - 100;
- up to 175 cm - 105;
- from 175 and above -110.
In this calculation, it is necessary to take into account the type of physique, and change the result:
- Asthenic (thin bone) - reduce by 10%;
- With normosthenic (medium bone) - subtract 110 from growth;
- Hypersthenic (wide-boned) - increase by 10%.
The optimal weight for women and men is calculated differently depending on the type of addition To determine your type, you need to measure the circumference of the wrist of the working hand. Women's sizes for all types in order - up to 16, 16-18, 18 and above. Men have such girth values - up to 17, 17-20, more than 20.
Quetelet formula
A mathematician of Belgian origin Quetelet proposed his own method for calculating BMI. The formula is elementary, and consists in the need to divide the weight of the subject by the height (meters) squared.
| Classification based on BMI | BMI | What to do |
| underweight | 19 | recommended to increase weight |
| -great shortage | Under 16 | |
| - medium deficit | 16-17 | |
| -small shortfall | 17-19 | |
| normal weight | 19,5-25,0 | |
| Excess body weight | Over 25 | need to reduce weight |
| 1 stage obesity | 25-30 | |
| stage 2 obesity | 30-35 | strongly recommend weight reduction |
| 3 stage obesity | 35-40 | |
| stage 4 obesity | over 40 | need to lose weight immediately |
These indicators are applicable to representatives of both the stronger and the weaker sex.
This calculation has some corrections. For example, it is not suitable for pregnant women, the elderly and children. The coefficient may vary depending on the complexion or the amount of muscle mass.
If the indicator is above 30 units. it is advisable to take serious measures: visit a qualified specialist, contact a nutritionist and go in for sports. 
Lorentz formula
The weight and height index for women can be calculated using a very simple Lorenz formula, which will help to get a value very similar to the results of other, more painstaking calculations.
To derive the coefficient, you need to know your height in centimeters (P) and carry out the following calculations:
- R-100-(R-150)/2. The resulting number indicates a normal mass, favorable for a person;
- For the abbreviated Lorentz formula, P / 2 -25 is necessary. In other words, subtract 25 from half of our growth.
This technique is relative, and does not allow you to find out the optimal weight with absolute accuracy. Body type is not taken into account here and the age factor is overlooked. Indeed, at different ages, different body weights are considered the norm.
Breitman formula
To derive the weight and height index according to the Breitman formula for women, with a height of 165, it is necessary to subtract 100 from 165. For a universal calculation, you need to multiply the growth by a factor of 0.7 and subtract 50.
Body mass index for women
The mass index of weight and height is easy to calculate for women by applying Brock's formula: we subtract 100 from height in cm. If we subtract 10% from the result, we will get the ideal weight.
Having received too high a value, it can be argued that the subject is at risk, and is prone to diseases of the cardiovascular system, hypertension, impaired respiratory system functions, etc.
The extracted norm can be considered for each lady individually. It is due to age, and is different in young girls and mature women. For a more accurate definition, it is also worth considering the proportion of muscle and adipose tissue.
So, if you use the Quetelet form to calculate the BMI of a girl using average parameters, then with a height of 1.71 and a weight of 64 kg, we get: 1.71 * 1.71 = 2.9241; 64/2.9241=21.89. Normal for the fairer sex is an indicator from 19 to 24, and in this example it is normal.
Body mass index for men
The weight of a man depends on the individual physical form, well-being, and is commensurate with the height and width of the chest. The presence of excess kilograms indicates deviations in the work of many body systems, therefore it is very important to determine your ideal weight and stick to it.
You can calculate BMI for a man with average parameters (height-176, weight-88) using the formula: 88 / (1.76 * 1.76) \u003d 28.4. A value from 19 to 25 is considered a normal coefficient. The coefficient found above indicates extra pounds.
A clearer idea of the distribution of adipose tissue can be defined as follows: divide the waist by the volume of the buttocks. For the stronger sex, the norm is 0.85.
By applying the Nagler formula, a man can independently find his optimal ratio.
Having a height of 152 cm, the body weight should be 45 kg. Adding 0.9 kg to the weight for every next 2.45 cm of height, we derive a number, and if it matches the actual kilograms, then this is regarded as the norm. If there is a large discrepancy, it is advisable to take the necessary measures.
With the help of growth (P) BMI for the stronger sex can also be calculated as follows: P-(100+(P-100)/20)
Body mass index for children
Similar to calculating BMI for adults, you can calculate this indicator for children and identify excess kilograms, or a tendency to obesity. 
BMI = weight in kg / square of height in m.
For example, if we take the average value, when a child with a height of 1.5 m. weighs 45 kg, then we get: 45 / 2.25 \u003d 20. For a girl or boy 13-14 years old, this is considered normal. Children are constantly growing, and this means that this factor must be paid attention to. The table below shows the optimal indices for different ages.
| Child's age | Girl | Boy |
| 0-2 | 13,3-15,4 | 13,4-15,7 |
| 2-3 | 15,3-16 | 15,3-16,5 |
| 4-5 | 13,5-16,5 | 13,8-16,8 |
| 5 | 13-17 | 13-17 |
| 6-8 | 13,5-18 | 13,5-18,5 |
| 9-10 | 14-20 | 14-21 |
| 11 | 14,5-20,5 | 14,5-21,2 |
| 12 | 16-21,5 | 15-22 |
| 13-14 | 16-23 | 16-23 |
| 15-16 | 17-23,5 | 17,5-24 |
Even with the available data, the indicators are not easy to interpret. If in any doubt, it is best to consult a pediatrician. He will help determine the optimal weight and overall development of the child's body, and in case of deviations he will be able to give the necessary recommendations.
Body mass index for teenagers
To correctly determine the BMI of a teenager, it is necessary to make the same calculations as for children, because using adult measurements is not entirely correct. During puberty, it is necessary to carefully monitor the body weight of a teenager. The coefficient is calculated using the percentile. 
To find it, weight must be divided by height squared..
The resulting value does not contain the proportion of commensurate tissue types with growth, because of this there is the possibility of inaccuracies and misinterpretations.
The obtained result must be compared with certain data, due to the age of the teenager, and we will get a comparative value (SV BMI).
In boys and girls, this figure may differ, because the average level of muscle mass in men is higher than in women.
The found result of CV BMI meets the following indicators:
- more than 95 - obesity;
- from 85 to 95 - overweight;
- from 5 to 85 - the norm;
- less than 5 - lack of body weight.
Body mass index during pregnancy
The weight and height index for women during childbearing is calculated using the Quetelet formula. This coefficient is determined by the gestational age, and by comparing it with the permissible norms, you can find out how many kilograms a future mother can gain. To do this, you still need to know the weight of the lady before conception and her height. 
Insufficient weight gain by a pregnant woman can be a reason for abnormalities in the development of the fetus. Excessive addition of kilograms can cause difficulties in independent childbirth.
The norm during pregnancy is the addition of 7 to 16 kg. But in practice, it happens that mothers with extra or missing kilograms have produced healthy babies.
If there are doubts that the weight of the expectant mother can cause negative consequences for the baby, do not worry prematurely.
The maximum allowable body weight, taking into account age
The weight and height index is easy to find for women under 40, subtracting 110 from height in centimeters, and for ladies after 40 years, subtract 100cm.
It is obvious that with age, weight increases due to changes in carbohydrate metabolism, and this process is natural. This reduces:
- metabolism;
- changes in energy and physical activity;
- volume of muscle structure;
- metabolic movement;
- hormone activity.
Optimal body weight varies for different ages Many scientists use the Egorov-Levitsky standards to calculate the allowable weight coefficient for ladies. These indicators indicate the maximum allowable weight at a particular age. Exceeding the BMI below indicates excess body weight.
| Height, m | Age, years | ||
| 20-30 | 31-40 | 41-50 | |
| 1,66 | 65,2 | 71,8 | 76,5 |
| 1,68 | 68,5 | 73,7 | 78,2 |
| 1,70 | 69,2 | 75,8 | 79,8 |
| 1,72 | 72,8 | 79,3 | 82,8 |
| 1,74 | 74,3 | 79,0 | 83,7 |
Why you need to know your BMI
Knowing your BMI is necessary for those who care about their health and their figure. Doctors use this factor to select the dose of drugs. At home, you can control your weight with it.
The calculation of the indicator will help to identify the presence of abnormalities in the body, and their severity. Based on the data obtained, dieticians can prescribe an appropriate diet and exercise regimen for obese patients.
BMI is a standard way to determine the level of obesity in men and women
Nevertheless, with any weight adjustment, it is not recommended to trust only the obtained indicator. If it does not correspond to the norm, then it is worth doing additional research.
Analysis of BMI results
It is worth emphasizing that the BMI standard changes periodically. For example, in the US at the end of the 20th century, the normal index was 27.8. Then the standards changed, and the figure dropped to 25. This was the reason for the increase in the number of overweight citizens.
According to Israeli scientists, the optimal ratio for men is 25-27. For women, the normal index of weight and height completely coincides with the standard.
BMI has an indicative value and is used primarily by doctors and nutritionists. Having calculated the number yourself, it must be compared with WHO standards in a separate table.
When identifying obesity or underweight, you should not rely with full certainty on the derived index. So, people who have highly developed muscles and do not have extra pounds may have an overestimated figure.
Degrees of obesity by BMI
Having determined your weight and height index using Brock's formula for women, and identifying extra pounds, they classify overweight from optimal using the table:
| Excess,% | Stage of obesity | Actual BMI |
| 20-30 | 1 | 25-30 |
| 31-50 | 2 | 30,1-36 |
| 51-99 | 3 | 36,1-40 |
| Over 100 | 4 | More than 40 |
Obesity levels 1 and 2 are considered as a minor cosmetic defect. It can cause mild discomfort, and cause further weight gain. At the extreme stage of obesity, pathological abnormalities are formed that affect all vital systems of the body.
Obesity can be of the following types:
- stable level for a long period of time;
- progressive- characterized by a rapidly increasing or slow continuous set of kilograms;
- residual- weight can increase significantly after a long period of weight loss.
Disadvantages and limitations in using the BMI method
The interpretation of the BMI values proposed by WHO does not take into account the age and sex of the individual. Evidence from many countries suggests that women's optimal weight index is lower than men's. In addition, it is higher among middle-aged citizens compared to young and old people.
The word “norm” means “averages”, but the statistics say that the “standards” for BMI, according to WHO regulations, do not correspond to the typical normal distribution of BMI indicators among residents.
It may be that the weight and height index, which is optimal for women in one country, will be overestimated for women living in many other countries of the world. For example, in Russia, if you follow the recommendations of the WHO, then most of the population over 30 years of age have extra pounds.
How to normalize body mass index
Excess weight, as well as insufficient, lead to serious disturbances in the functioning of the body. With small deviations from the norm, do not worry.
If the discrepancies are significant, first of all, you should consult a specialist. He will select the optimal diet and prescribe a diet.
- increase the calorie content of portions by increasing the intake of food and more frequent intake using protein products;
- engage in physical exercises aimed at adding body weight, excluding workouts that deplete the body;
- create conditions for healthy and sufficient sleep.
Those who have a non-critical excess of kilograms should adhere to the following rules:
- reduce the amount of food consumed;
- exclude fatty foods from the diet, reduce the intake of eggs, coffee, alcohol;
- diversify your diet with a sufficient amount of vegetables, fruits, low-fat dairy products, cereals, lean meat and fish;
- follow the diet. At night, it is better to drink kefir or eat fruit.
- choose sports activities that promote fat burning;
- breathe fresh air as much as possible and get enough sleep.
It is advisable to track your weight and height index, which is especially important for women, because its deviations can cause hormonal failure. A lack of body weight leads to a decline in strength, a decrease in immunity. Extra pounds create problems with the cardiovascular system, contribute to loss of activity.
When looking for optimal BMI indicators, you should, first of all, listen to your body. If the numbers indicate deviations, but the state of health is quite comfortable, then you can live a full life without reaching your ideal weight.
Useful video materials about the height and weight index for women
The ideal weight-to-height ratio for women:
Body mass index: how many extra kilos do you have and how dangerous or safe is their amount for health:
Height to Weight Ratio: Windows App Overview:
All those who lose weight are interested in the question of the norm. What weight is considered normal for yourself? There are a number of formulas, using which you can determine to what extent your body weight corresponds to one or another average value. After all, all these formulas are derived from the calculation of the average person. Therefore, resorting to them, one must clearly realize that any formula for normal weight is conditional.
In reality, each of us has our own individual genetically predetermined value of the optimal body weight, which depends on the totality of innate structural features of the tissues and organs of the body as a whole.
So, for example, there are three body types - asthenic (thin-boned / ectomorph), normosthenic (normal / mesomorph) and hypersthenic (big-boned / endomorph).
To determine your type, you need to measure the circumference of your wrist.
- Less than 16 cm - asthenic;
- 16-18.5 cm - normosthenic;
- More than 18.5 cm - hypersthenic.
- Less than 17 cm - asthenic;
- 17-20 cm - normosthenic;
- More than 20 cm - hypersthenic.
In addition to body types, the body of each of us is programmed for a certain weight. This program is included by the mother during pregnancy. It is believed that if she gained excess weight during pregnancy, then the child may have difficulty in controlling body weight in the future. In the course of our lives, both wrong and we are laying another program. During weight loss, many are faced with the so-called balance point or set point, when using healthy methods, and if it works out, then they can’t keep it.
For example, you weighed 90 kg, lost weight to 55 kg, want to lose another 5 kg, but it doesn’t work out no matter what you do. At the same time, even arranging a rest from the diet and small holidays, you do not gain more than 3-5 kg, which you then easily lose. Perhaps you have reached your point of balance, and overcoming it can cost you dearly. When the body is under constant stress, and diets, training and high demands on oneself are constant stress, the risk increases. It is important to listen to yourself and the needs of your body.
If you do not take into account the individuality of the body and physique, then in approximate calculations you can use the following simple formulas (author P.P. Broca, 1871):
For men
(Height in cm - 100) x 0.9 = ideal weight.
For women
(Height in cm - 100) x 0.85 = ideal weight.
There is another formula that can be used for both men and women:
(height in cm - 100) = ideal weight.
Example: If your height is 152 cm, your weight should be 152 - 100 = 52 kg.
There is another formula:
Height in cm x Bust in cm / 240 = ideal weight.
Example: (155 x 96) / 240 = 62 kg.
Do not forget that it is necessary, nevertheless, to take into account the physique, that women naturally have more fat than men.
Therefore, you can use the following data to determine your ideal weight:
For men
| Height, cm | Body type | ||
| Thin (asthenic) | |||
| 155 | 49 kg | 56 kg | 62 kg |
| 160 | 53.5 kg | 60 kg | 66 kg |
| 165 | 57 kg | 63.5 kg | 69.5 kg |
| 170 | 60.5 kg | 68 kg | 74 kg |
| 175 | 65 kg | 72 kg | 78 kg |
| 180 | 69 kg | 75 kg | 81 kg |
| 185 | 73.5 kg | 79 kg | 85 kg |
For women
| Height, cm | Body type | ||
| Thin (asthenic) | Normal (normosthenic) | Broad bone (hypersthenic) | |
| 150 | 47 kg | 52 kg | 56.5 kg |
| 155 | 49 kg | 55 kg | 62 kg |
| 160 | 52 kg | 58.5 kg | 65 kg |
| 165 | 55 kg | 62 kg | 68 kg |
| 170 | 58 kg | 64 kg | 70 kg |
| 175 | 60 kg | 66 kg | 72.5 kg |
| 180 | 63 kg | 69 kg | 75 kg |
Ideal weight formulas help you figure out how much weight you can lose. However, it is important to understand that two people with exactly the same weight can look completely different. It's not about height or body type, it's about body composition - the ratio of muscle to fat. Look at the photo.
Adipose tissue is more voluminous than muscle tissue. Therefore, the girl on the left looks more curvaceous than the girl on the right, although they have the same weight. And that is why it is so important to strive not so much to lose weight as to strengthen muscles with the help of strength training and.
Who doesn't want to look good and feel slim? But it is not always clear how to calculate the ideal weight, what figure to strive for and whether it is necessary at all.
There are girls who are sincerely sure that they need to lose weight, but in fact, the opposite is true for them - they need to get better. There are women who believe that everything is in order and a few extra pounds have no effect. Although medical statistics say otherwise.
In order to more objectively assess your weight, there are formulas for calculating excess weight. They are also not perfect, they have a number of drawbacks. But they allow you to reconsider your view on the issue of excess weight. You will find the most famous formulas for calculating ideal weight in this article.
Determination of ideal body weight
The ways we talk about are different from each other. And to some extent reflect the evolution of methods for calculating the ideal body weight. From the authoritarian method of Lorenz, which is suitable only for young girls. Before Broca's formula, taking into account body type and calculation formulas for age and height.
If you are curious, read the article with a pencil and paper in hand. But do not be strict about the resulting numbers. Not a single formula can describe the individuality, way of life, state of health and feelings in one or another weight of a particular woman.
First way. Lorentz method
The advantage of the Lorentz method: calculates the weight rate for those girls who are always 18. But seriously, this is one of the toughest methods that you should not be guided by.
The disadvantage of this method it is believed that it only works for girls, but not for guys. Also, you can not use it if a woman is taller than 175 cm.
According to this method, the ideal body weight for girls should be calculated as follows:
- Measure your height in centimeters.
- Subtract 100 from it.
- The second action will be subtracting from the height of 150 centimeters.
- Determine the difference between the first and second results.
- The resulting units are divided in two.
This is how the formula for estimating body weight in a female looks like: (P - 100) - (P - 150) / 2.
For example: the girl has a height of 170 cm, we calculate: (170 - 100) - (170 - 150) / 2 \u003d 70 - 20/2 \u003d 60 kg.
The second way. Quetelet index
The advantage of the Quetelet index is versatility - it is suitable for both women and men.
The disadvantage of the formula is the inability to apply it to adolescents and the elderly. Also, you should not count on the objectivity of the method with very low or very high male and female growth. The method is valid for representatives of the stronger sex 1.68-1.88 meters, and the weak - 1.54-1.74 meters. He “lies” to pregnant, lactating mothers, athletes.
Important! The calculation of the correct weight norm begins with the calculation of BMI (body mass index).
Often, BMI is used by doctors to determine if there is obesity or dystrophy.
How to determine how many kilograms of overweight a girl has? Using the Quetelet formula, BMI is calculated:
- Find out the mass of a person's body in kilograms using scales.
- Measure height in meters.
- The first indicator is divided by the square of the second.
- They calculate and find their BMI in the table.
- Know the result.
The method is accompanied by a table in which BMI is calculated by age:
| Body mass index | Human weight parameters | |
| 18 to 25 years old | 26 to 46 years old | |
| > 17,5 | > 18,0 | State of anorexia |
| Up to 19.5 | up to 20 | Small deficit |
| up to 23 | up to 26 | Norm |
| up to 27 | up to 28 | Pre-obesity state |
| up to 30 | up to 31 | 1 degree of obesity |
| Up to 35 | Up to 36 | 2 degree of obesity |
| up to 40 | up to 41 | 3 degree of obesity |
| 40 and more | 41 and more | 4 degree of obesity |
For example: A 24-year-old girl has a height parameter of 1.59 m and weighs 61 kg. When calculating the weight norm for a woman, it turns out: 61 kg / (1.59) 2 = 24.1 (BMI). It turns out that there is a slight excess weight. If the girl were 2 years older, then her parameters corresponded to her age.
The third way. Brock's formula
Advantage: the technique of how to correctly determine the excess weight of a person according to Brock is suitable for people whose height is in the range of 155-200 cm.
Flaw: age is not taken into account.
Important! To find out the constitution of the body, you need to find the thinnest place on the wrist, and determine its circumference.
The measurement results are found in the table:
- The number 110 is subtracted from the height in centimeters if the person is under 40 years old.
- The older the man or woman, the more he (she) will weigh. After the age of forty a person, his parameter is calculated as follows: the number 100 is subtracted from height.
- Also, a correction in the calculations is made for asthenic and hypersthenic types. In the first case, 10% is subtracted from the result, and in the second, the same percentages are added.
Example: you can determine the weight norm for a woman of thirty years as follows - 110 units are subtracted from her height of 167 cm. It turns out that her weight should be 57 kg. If she has an asthenic body type, the final result is: 57 - 5.7 = 51.3 kilograms, and if hypersthenic - then 57 + 5.7 = 62.7 kilograms.
Fourth way. Nagler's method
The advantage of the Nagler method The fact is that if you have data on growth, you can calculate the ideal number of kilograms for a girl.
Flaw: this formula is only valid for females. It does not take into account age and body type.
- For 152.4 cm of female height, take 45 kg.
- Then, for each new inch (5.54 cm), another 0.9 kg is taken away.
- At the end of the calculation, an additional 10% of the found weight indicator is added.
Example: the fair sex has a height of 170 cm. To calculate, we subtract 152.4 from 170 cm. This is equal to 17.6. We divide this value by the size of an inch - 2.54 cm. We get 6.93, and multiply by 0.9 kg. As a result, we have 6.24 additional kilograms. 45 kg + 6.24 = 51.24 kg. Add 10% of the resulting weight 51.24 + 5.124. The result - it should weigh approximately 56.364 kilograms.
Fifth way. Women's formula based on age and height
Advantage: this method takes into account the age-related changes of the fair sex.
disadvantage is that the method is only suitable for women. It does not reflect their body type in any way.
The norm of weight in most women gradually increases with age. This is due to the slowdown of metabolic processes in their body, and is a natural phenomenon.
This formula answers the question of how to determine the correct kilogram rate in a woman, taking into account age:
50 + 0.75 (Height - 150) + (Age - 20) / 4
Example:
a woman is 42 years old, and her height is 168 cm. Find the ideal body weight:
50 + 0.75 (168 - 150) + (42 - 20) / 4 = 69 kilograms.
But we must not forget that we are all individual, and the ideal number of kilograms may differ from the calculated one - the main thing is that the person is comfortable.
In addition, the numbers on the scales often do not describe the state of the body and well-being, the ratio of fat and muscle tissue. Namely, they give beautiful curves and smartness.
What is your favorite way to calculate your ideal weight?
Instruction
One of the simplest formulas for calculating the ideal weight and was proposed by the anthropologist from France Paul Brock. The easiest to calculate is weight is minus the coefficient. At up to 165 cm, the coefficient is 100, up to 175 cm - 105, above 175 cm - 110. According to experts, Brock's formula is correct for people whose age is in the range from forty to fifty years. If you are under forty, then the optimal weight, calculated according to Broca's formula, must be reduced by ten to twelve, otherwise the result must be increased by five to seven percent.
Body mass index calculations showing body fat are considered more accurate. For calculations, it is enough to know body weight in kilograms and height, recorded in meters. BMI \u003d M (kg): H2 (m), where M is body weight, H is height. The formula itself is also very simple: the ratio of mass to the square is found. Depending on the value obtained, conclusions are drawn about weight e person. If you get less than 25 - this is the norm, if more than 25, but less than 27 - this is overweight, but not yet obese, but if more than 27 - this is already obese. But these are again average indicators, since the values of the body mass index are different for and.
In Russia, doctors use special tables to determine overweight, in which, depending on gender, and on, and on height, the maximum allowable values \u200b\u200bare indicated weight A. If your weight below the table, this may mean the absence of excess weight and, if higher, then additional studies determine the degree.
note
There are various methods to determine the ideal weight for any person, depending on his height. This does not take into account other indicators such as age, gender and physique. Obviously, if excess weight is formed due to muscles, then a person does not look full, in addition, scientists have proven that a little overweight for women has a positive effect on her health.
Helpful advice
There are no absolutely reliable ways to determine the ideal weight, since none of them takes into account the individual characteristics of a person. It is better to focus on the state of health and the mirror.
Related article
Excess weight is a problem that can have not only aesthetic, but also medical negative consequences. How to reliably find out if you are overweight?
Having excess weight can create a lot of problems for a person, ranging from difficulties with choosing well-fitting clothes to negative health consequences, such as shortness of breath, increased stress on the joints, and others. However, in the modern world, focused on the standards of the fashion industry, the concept of being overweight has become rather vague: many people begin to consider being overweight, which is actually completely normal. How to determine the limits of the norm of weight for a particular person?
Body mass index
To get an answer to this question, doctors have long developed a universal criterion that takes into account not only the absolute value of weight in kilograms, but also: after all, it is clear that weight, for example, 70 kilograms, has a completely different meaning for two people if the height of one is 1 .5 meters, and the other - 1.95 meters. This criterion was called the body mass index, which is also often abbreviated to BMI. At the same time, it is simple enough that anyone who wants to find out if he is overweight can use it. Body mass index is calculated by dividing a person's weight in kilograms by the square of their height in centimeters. For example, for the person mentioned above with a weight of 70 kilograms and a height of 1.5 meters, the indicated index will be 31.1.Determining the limits of normal weight
The developers of the body mass index found that the weight of an average person can be considered normal if his BMI is in the range from 18.5 to 25. If the value of the body mass index of a particular person turned out to be less than the lower limit of the norm, this means that he has a deficiency in body weight . If the index turned out to be higher than 25, that the person is overweight, and the more the index value exceeds the upper limit, the more overweight he has. So, if the BMI does not exceed 30, doctors ascertain the presence of overweight, with BMI values from 30 to 35 - obesity of the first degree, from 35 to 40 - of the second degree, over 40 - of the third degree. In the example above, a person with a weight of 70 kilograms and a height of 1.5 meters is overweight, and the BMI indicator shows that it has already come to obesity of the first degree.Sources:
- Body mass index and optimal weight in 2019
Knowing if your weight is within normal body weight helps you understand your body, identify problems, and sometimes even make a diagnosis right away. Weight control is considered the most important preventive measure for a number of dangerous diseases.
Unfortunately, often body weight worries not those people who should be worried (obese patients), but young girls who have driven into their heads that they do not meet the TV-magazine standards 90-60-90, and bring themselves to fainting with all sorts of diets . In the case of a serious illness, such as diabetes, starvation and semi-starvation diets pose a threat to life.
Therefore, let's determine together the compliance of your weight with the norm. Take a notepad and a pen in your hands, and even better, a calculator, we will count. The procedure for calculating the normal weight is quite simple and does not take much time.
Many formulas are used to determine normal body weight. The simplest and most famous
M \u003d P - 100, where M is the mass in kg; P - height in cm.
But this formula in this form is very inaccurate and is applicable only for a very approximate calculation.
It is advisable to use the full formula (see table below).
Calculation of ideal body weight
| Height, cm | Ideal weight, kg |
| 155-165 | growth minus 100 |
| 166-175 | growth minus 100 |
| 176-185 | growth minus 110 |
| 186+ | growth minus 115 |
You can also use the modified formula: ideal body weight \u003d (height in cm minus 100) and another minus 10% for men; BMI \u003d (height in cm minus 100) and another minus 15% for women:
- 1 degree of obesity - the actual body weight exceeds the ideal by less than 30%;
- 2 degree of obesity - if the actual weight exceeds the ideal by 31-50%;
- 3 degree of obesity - if the actual weight exceeds the ideal by 51-99%;
- 4 degree of obesity - if the actual weight exceeds the ideal by as much as 100% or more.
Currently, in most countries of the world, body mass index (BMI), or the Quetelet index, is used to determine normal and overweight in a person:
BMI \u003d M / R 2, where M is the mass in kg; R 2 - height in meters, squared.
According to the international classification, an indicator from 18.5 to 24.9 kg / m 2 is considered the norm. A reading below 18.5 indicates underweight. If the BMI is in the range of 25 to 29.9, it is overweight, and obesity is diagnosed with a BMI over 30.
For example, your height is 181 cm, weight is 99 kg. Let's do a simple calculation: 1.81 2 = 3.2761. Divide 99 by 3.2761 for a BMI of 30.22, which means you are one of the many with weight problems:
- 1 degree of obesity (mild obesity) - with a BMI between 27 and 35;
- 2 (moderate) - with a range of values 35-39.9;
- 3 (severe or painful) - with a BMI of 40 or more.
Table of normal human body weight by age
| Height, cm | Person's age, years | |||||||||
| 20-30 | 30-40 | 40-50 | 50-60 | 60+ | ||||||
| M | AND | M | AND | M | AND | M | AND | M | AND | |
| 150 | 53 | 48 | 57 | 51 | 60 | 54 | 60 | 54 | 58 | 52 |
| 152 | 54 | 49 | 58 | 52 | 60 | 54 | 61 | 55 | 59 | 53 |
| 154 | 55 | 51 | 58 | 52 | 61 | 55 | 61 | 55 | 60 | 54 |
| 156 | 57 | 52 | 59 | 53 | 61 | 55 | 62 | 56 | 61 | 55 |
| 158 | 58 | 53 | 59 | 53 | 62 | 56 | 63 | 57 | 62 | 56 |
| 160 | 59 | 54 | 61 | 55 | 63 | 57 | 64 | 58 | 63 | 57 |
| 162 | 61 | 56 | 62 | 56 | 64 | 58 | 65 | 59 | 65 | 58 |
| 164 | 62 | 57 | 63 | 57 | 66 | 59 | 67 | 60 | 66 | 59 |
| 166 | 63 | 58 | 65 | 58 | 67 | 60 | 68 | 61 | 67 | 60 |
| 168 | 65 | 59 | 66 | 59 | 68 | 61 | 70 | 63 | 69 | 62 |
| 170 | 66 | 60 | 68 | 61 | 70 | 63 | 71 | 64 | 71 | 64 |
| 172 | 68 | 61 | 69 | 62 | 72 | 65 | 73 | 66 | 73 | 66 |
| 174 | 69 | 63 | 71 | 64 | 73 | 66 | 75 | 67 | 75 | 67 |
| 176 | 71 | 64 | 73 | 65 | 75 | 68 | 76 | 69 | 77 | 69 |
| 178 | 72 | 65 | 74 | 67 | 77 | 69 | 78 | 71 | 79 | 71 |
| 180 | 74 | 67 | 76 | 68 | 79 | 71 | 80 | 72 | 81 | 73 |
| 182 | 78 | 70 | 78 | 70 | 81 | 73 | 82 | 74 | 83 | 75 |
| 184 | 79 | 71 | 80 | 72 | 83 | 75 | 84 | 76 | 85 | 76 |
| 186 | 81 | 73 | 82 | 74 | 85 | 77 | 86 | 77 | 86 | 77 |
| 188 | 83 | 75 | 85 | 77 | 88 | 79 | 88 | 79 | 87 | 78 |
| 190 | 86 | 77 | 87 | 78 | 89 | 80 | 89 | 80 | 87 | 77 |
For the diagnosis of obesity, in addition to the total mass, the volume of the waist and hips is important. So, for men, a waist circumference of 94 cm is considered acceptable, for women - up to 88 cm. With a waist circumference of 94-101 cm in men and 102 cm or more in women, the risk of metabolic complications is high.
If your waist circumference exceeds the indicated figures, you have an abdominal (visceral) type of obesity, that is, fat is deposited around the internal organs - the liver, pancreas, heart, disrupting their work. It is this type of obesity that is a risk factor for the development of diabetes mellitus, coronary heart disease, arterial hypertension, myocardial infarction!
Patients with type 1 diabetes mellitus, whose body weight is normal, naturally do not need to worry about the impact of obesity on diabetes.
Patients with type 2 diabetes who have a normal weight (there are very few of them) should try to keep it close to ideal numbers, so be sure to strive for ideal weight for your age.
Well, for people with diabetes mellitus types 1 and 2, who are overweight or obese, the basics of calculating the calorie content of the diet must be remembered and applied daily, this is the most important thing for you in the treatment of diabetes.
Counting calories is also important for people with a lack of weight, they already know that gaining weight is by no means an easy task. And correctly calculated nutrition with the determination of the need for kilocalories will allow you to gain the missing kilograms.
