How to Calculate Body Mass Index and Maintain a Healthy Weight

Many people dream of losing their body weight, but people don’t always know what their ideal weight is to strive for. Experts recommend first using one of the formulas for calculating your ideal weight, and only then starting weight correction measures.

Many doctors are of the opinion that the optimal weight is the one a person had at 18 years old. As you know, metabolism slows down with age. It is estimated that every 10 years the body reduces energy expenditure by 10%. If you do not reduce your calorie intake, then your body weight gain will also be 5-7% every decade. However, you should not use shock methods if you want to lose weight. Weight loss should be smooth so as not to harm your health! The best option is to lose 10% of body weight per year.

Body Mass Index (BMI)

This method is also suitable for everyone, because with its help it is easy to find out whether you have sufficient body weight, low or overweight, and based on the data obtained you can already build your diet. So, to determine your BMI, divide your weight in kilograms by your height in meters squared. If you get a result of less than 17.5, then you need to gain weight because your body weight is not enough for your height.

A value above 27.5 – 29.5 for young people under 25 years of age characterizes excess weight.

BMI Weight
18–25 years old 26–46 years old
Less than 17.5 Less than 18.0 Insufficient, dangerous to health
17,5–19,5 18,0–20,0 Slightly reduced, not hazardous to health
19,5–22,9 20,0–25,9 Normal
23,0–27,4 26,0–27,9 Surplus
27,5–29,9 28,0–30,9 Obesity 1st degree
30,0–34,9 31,0–35,9 Obesity 2 degrees
35,–39,9 36,0–40,9 Obesity 3 degrees
40.0 and above 41.0 and above Obesity 4 degrees

When using this method, it is worth considering your height. If you are shorter than 154 cm, subtract 10% from the resulting number to obtain your ideal weight. Tall people (above 188 cm) need to add 10% to the data obtained.

Summary table of values

Interpretation of BMI indicators, in accordance with the recommendations of the World Health Organization (WHO)

16 or lessSevere underweight
16—18,5Insufficient (deficit) body weight
18,5—25Norm
25—30Excess body weight (pre-obesity)
30—35Obesity of the first degree
35—40Obesity of the second degree
40 or moreObesity of the third degree (morbid)

New medical formulas for calculating weight

Once upon a time, ideal weight was calculated using only one formula: “height minus 100” for men and “height minus 110” for women. Unfortunately, this formula could not take into account the characteristics of the physique, and it is not advisable to use such a calculation at every age. There are people with heavy bones for whom this method is not suitable at all. As a result, based on the outdated formula, a new one was developed, which was called Brocca's formula. Its basic calculation principle is as follows:

For women – (height minus 110) × 1.15

For men – (height minus 100) × 1.15

There is also another modern formula for calculating ideal weight. It is called the Lorentz formula and was developed exclusively for the fair sex. This calculation is absolutely not suitable for men! Also, ladies whose height exceeds 175 centimeters should not use the Lorenz formula.

The essence of calculating a woman’s ideal weight using this formula: (height in centimeters minus 100) – (height in centimeters minus 150) / 2. When creating the calculation, the body mass index (BMI) was taken into account.

YOUR BMI IS OVER 30: OBESITY

You are obese, which means it is better to seek qualified help from a medical specialist to start losing weight. Remember, at this stage your health has already deteriorated, do not exhaust your body with hunger strikes and hard, exhausting workouts. This will only make the condition worse. Your doctor will give you all recommendations based on your personal indicators and individual health status.

Why obesity is dangerous: You may already suffer from certain diseases, perhaps you do not yet suspect it. In any case, obesity means diabetes mellitus, arterial hypertension, atherosclerosis, a high probability of heart attack and stroke, disruption of the gastrointestinal tract, musculoskeletal disorders, etc. Before diseases take over, start fighting obesity!

Egorov-Levitsky table

This method is very easy to use! You don’t need to calculate anything, just step on the scales and then compare the result with the data in the table.

Maximum permissible body weight

Height, cm 20–29 years old 30–39 years old 40–49 years old 50–59 years old 60–69 years old
husband. wives husband. wives husband. wives husband. wives husband. wives
148 50,8 48,4 55 52,3 56,6 54,7 56 53,2 53,9 52,2
150 51,3 48,9 56,7 53,9 58,1 56,5 58 55,7 57,3 54,8
152 51,3 51 58,7 55 61,5 59,5 61,1 57,6 60,3 55,9
154 55,3 53 61,6 59,1 64,5 62,4 63,8 60,2 61,9 59
156 58,5 55,8 64,4 61,5 67,3 66 65,8 62,4 63,7 60,9
158 61,2 58,1 67,3 64,1 70,4 67,9 68 64,5 67 62,4
160 62,9 59,8 69,2 65,8 72,3 69,9 69,7 65,8 68,2 64,6
162 64,6 61,6 71 68,5 74,4 72,7 72,7 68,7 69,1 66,5
164 67,3 63,6 73,9 70,8 77,2 74 75,6 72 72,2 70
166 68,8 65,2 74,5 71,8 78 76,5 76,3 73,8 74,3 71,3
168 70,8 68,5 76,3 73,7 79,6 78,2 77,9 74,8 76 73,3
170 72,7 69,2 77,7 75,8 81 79,8 79,6 76,8 76,9 75
172 74,1 72,8 79,3 77 82,8 81,7 81,1 77,7 78,3 76,3
174 77,5 74,3 80,8 79 84,4 83,7 83 79,4 79,3 78
176 80,8 76,8 83,3 79,9 86 84,6 84,1 80,5 81,9 79,1
178 83 78,2 85,6 82,4 88 86,1 86,5 82,4 82,8 80,9
180 85,1 80,9 88 83,9 89,9 88,1 87,5 84,1 84,4 81,6
182 87,2 83,3 90,6 87,7 91,4 89,3 89,5 86,5 85,4 82,9
184 89,1 85,5 92 89,4 92,9 90,9 91,6 87,4 88 85,9
186 93,1 89,2 95 91 96,6 92,9 92,8 89,6 89 87,3
188 95,8 91,8 97 94,4 98 95,8 95 91,5 91,5 88,8
190 97,1 92,3 99,5 95,6 100,7 97,4 99,4 95,6 94,8 92,9

It is worth noting that here we are talking about the maximum allowable weight for each age.

Ideal body shapes

Calculate body mass index

Not only external beauty corresponding to ideal body shapes, but also life expectancy depends on how developed the human body is, how well it corresponds to the indicators that are used to assess, first of all, human health.

After all, the greater your body weight, the greater your chances of developing another disease and thereby really shortening your life. Regardless of whether a person is overweight or underweight, both can lead to serious illnesses. Today it is possible to independently monitor your body weight and control any changes using calculations that can be found on many sites. An online calculator will help you calculate what body mass index (abbreviated as BMI) you have and find out whether your weight is normal or whether you need to start taking some actions to stay healthy.

Calculating BMI is simple, especially with the help of a ready-made calculator. The values ​​of height and weight are entered, and the result is a figure, which is an indicator of how normal or abnormal your weight is, and already taking this indicator into account, you can determine what condition your body is in today and, accordingly, if any - a risk to your health.

BMI for children and adolescents

The problem of excess weight, unfortunately, is relevant not only for adults, but also for the younger generation. It is especially pronounced in families where this trend affected both parents. It is dangerous to turn a blind eye to this; a child’s body is more vulnerable and is just being formed.

The load on the internal organs is higher than normal due to the pressure of fatty deposits, the need of the heart to pump blood more intensively, and the liver to more intensively cleanse it of toxins - will ultimately lead to incurable diseases. Don't forget this.

It is necessary to calculate the body mass index for children and adolescents taking into account their age separately. To obtain correct results, in particular the norms for adolescents, gender and age are included in the calculation, since the young body develops rapidly and gender has a huge influence.

A subjective way of assessment is to compare the external parameters of your child and his peers. But it is better to use an online calculator or formula and check the result against the table to determine the index.

The development scale for boys and girls is different, as evidenced by the figures in the tables, where the deviation from the predicted norm is expressed in %.

BMI for girls

How many years5% (pronounced underweight)10% (shortage)50% (norm)85% (excess)95% (dangerously obese)
812.213.215.918.822.3
913.013.716.419.823.4
1013.414.216.920.723.4
1113.814.617.720.822.9
1214.816.018.421.523.4
1315.215.618.922.124.4
1416.217.019.423.226.0
1516.917.620.223.227.6
1616.917.820.322.824.2
1717.117.820.523.425.7
1817.618.320.623.525.0

BMI for boys

How many years5% (pronounced underweight)10% (shortage)50% (norm)85% (excess)95% (dangerously obese)
812.514.216.419.322.6
912.813.717.119.421.6
1013.914.617.121.425.0
1114.014.317.821.223.1
1214.614.818.422.024.8
1315.616.219.121.724.5
1416.116.719.822.625.7
1517.017.820.223.125.9
1617.818.521.023.726.0
1717.618.621.623.725.8
1817.618.621.824.026.8

In case of strong deviations from the norm for adolescents (+\-), you should contact your pediatrician to clarify the causes and possible consequences.

conclusions

Finding a problem leads to finding the most effective solution. An experienced psychologist can greatly help you with this. He will determine the right motivation and teach you how to fight complexes and bad habits. The attending physician will prescribe a period of rehabilitation therapy, and the cosmetologist will help cope with the loss of elasticity and smoothness of the skin after active weight loss.

The next difficult stage for many patients is complete adaptation to society. People have become unaccustomed to full-fledged social, family and work connections. Friends, relatives, and colleagues should help restore them with the least psychological loss.

Use a set of weapons that are very dangerous for him to fight Sly Fat:

  • leisure,
  • physical work and sports activities,
  • moderate, balanced diet,
  • constant contacts with doctors, nutritionists and psychologists.

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Test check yourself:

fact or fiction?

Eating more fruit can improve bone density.

Correct! Wrong!

Consuming foods with plenty of bioavailable calcium improves bone density. Fruits generally do not contain much calcium.

Excess protein accumulates in the muscles, causing them to increase.

Correct! Wrong!

Once the need for protein and energy has been met, excess amino acids are converted to acetyl-CoA, from which they are converted into fatty acids and stored in adipocytes. Therefore, excess protein will not be converted into muscle.

Eat a balanced diet

The body must receive the required amount of proteins, fats and complex carbohydrates (BCC). Eat fish and seafood, meat, eggs and dairy products, nuts, cereals and legumes, vegetable oils, green vegetables.

But the body needs proteins, fats and carbohydrates in different quantities. In addition, proteins are divided into complete and incomplete, fats into saturated and unsaturated. Their proportions in the daily diet also differ...

It's easy to get confused about this, especially if you're not very knowledgeable about healthy eating. What foods to choose, how to correctly calculate the calorie content of dishes, what to cook so as not to sit on one salad all day? There are really a lot of questions.

To answer them, Amway specialists have developed a comprehensive Body Detox program. In just 3 weeks you can easily change your eating habits and learn to eat tasty and balanced. Breakfast, lunch, dinner and two healthy snacks: just select several dishes from the Body Detox menu and create your daily diet. There is no need to invent new combinations or constantly eat the same thing, there is no need to manually count calories. All recipes are described step by step, for each dish its calorie content and BJU are indicated.

NUTRILITE™ Appetite control with glucomannan helps to cope with the constant feeling of hunger and the desire to eat more than necessary. There is no need to test your willpower: just mix one portion of the dietary supplement with water or juice and drink shortly before meals. When in contact with water, glucomannan increases from 50 to 200 times, it envelops the stomach, partially fills it and creates a feeling of fullness.

You can even treat yourself to something sweet! But it’s better - in the first half of the day and not too often. Buns and chocolate bars should be replaced with fruits, nuts or a delicious smoothie with a mixture of dietary fiber with NUTRILITE™ inulin.

BMI and life expectancy

Body weight is directly related to life expectancy. If a person begins to pay attention to nutrition and lifestyle, then his body will remain healthy for a long time.

You can assess the condition of your body using a convenient and accessible calculator for determining your body mass index. Height and weight data are entered into the BMI calculation program, and the output, taking into account the data, is a figure, knowing which it is easy to determine whether the weight is normal or not. In the standard calculation, the numbers are obtained without taking into account the physique, and also do not take into account how old the person is. This norm is for people of middle age and physique.

Note that a person’s life expectancy is directly related to the degree of obesity or underweight. The further from ideal indicators, the greater the likelihood of developing diseases of the heart, digestive and hormonal systems, and as a result, a significant reduction in life.

BMI for women is especially relevant, because emotionally a woman is more susceptible to stress, and stress, in turn, leads to the fact that women begin to “eat” their problems, and sometimes, on the contrary, they refuse food, which in turn also leads to diseases and life expectancy decreases.

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