The conclusion
body mass index calculator
Calculating the body mass index may need to know some information regarding height and weight, as specialists indicate that there is no ideal weight that can be measured on the basis of all people, and this may be due to a group of various factors that have a major role in determining this, which may be considered The most important ones are age, muscle fat percentage, height and gender, on the basis of which all other details associated with calculating BMI differ.
However, when identifying these rates, the body mass index of the individual can be calculated, which may differ from one person to another, and in that case there is a range of body weight whose mass index is to be calculated, and we mention below the method by which the rates used in calculating the ideal weight for the individual can be identified. In kilograms, which is an approximation to reality.
- Ideal weight formula for men: 48 + 1.1 x (height (centimeters) – 150)
- Ideal weight formula for women: 45 + 0.9 x (height (centimeters) – 150)
Most of the specialists and obese and thinnest doctors do not prefer to talk about the ideal weight on the grounds that it is the desired weight, and the reason for this may be due to the difficulty of reaching it in some cases, but the fact of the matter is that simple and continuous progress in losing weight is considered one of the healthy things.
In this case, the focus is on losing weight, which if it ranges between 7% to 10%, is one of the factors that greatly affect the metabolism and metabolism process, rather than focusing on achieving the ideal weight.
Calculating the BMI for children under the age of 19 may not be of any benefit, as pregnant women and athletes are excluded from its calculation. It should also be noted when calculating the BMI that it does not take into account the percentages of fat in the body.
BMI can be calculated, through a calculator, enter the data contained in the following formula for BMI:
BMI = weight ÷ (height in metres x height in metres)
For example, if an individual weighs 90 kg and is 161 cm tall, then the BMI is calculated within this law by making the height in metres, so it will be 1.61 m, so it is: 90÷ (1.61 x 1.61) = 34.7 kg
On this basis, this person is considered to be a first-degree obese person, as it is possible to identify the state of the body by calculating the body mass index and comparing the results with the following table:
| Indicator BMI | body condition |
| less than 15 | Very severe weight loss |
| 15 to 16 | Severe weight loss |
| 16 to 18.5 | Weight loss |
| From 18.5 to 25 | normal weight |
| 25 to 30 | Increase in weight |
| 30 to 35 | first degree obesity |
| from 35 to 40 | second degree obesity |
| more than 40 | Too obese |
Read also: What is the ideal BMI for adults and children?
The importance of calculating a normal body mass index
Many people resort to calculating the BMI for some reasons that are related to their desire to reach the ideal weight, or to know what the body needs in terms of increase or decrease, before they follow some diets that contain varying percentages of calories, which in turn leads to a change in the condition of the body. the body.
Some people may go to measure their BMI after eating large amounts of food while on a fat-burning diet.
Maintaining the body mass index within its normal rates is also an important factor, as skipping the assumption to measure the body mass than its normal rate becomes more likely to suffer from many diseases at that time, and this may be due to obesity that leads to high blood pressure and type 2 diabetes. The second is high levels of harmful cholesterol in the blood.
In addition, it makes the body more susceptible to gallbladder diseases and breathing disorders when sleeping, the possibility of heart disease and arteriosclerosis, and the emergence of some muscle and joint pain as a result of fat pressure on those parts, which hinders them from performing their vital functions inside the body.
When the body mass index is significantly lower than its normal index, the body may be exposed to some diseases related to thinness, including general weakness, weak immunity, anemia and osteoporosis.
Where some doctors rely on conducting some other tests when the body mass index is low or high, and these tests include the following:
- Conducting a skin fold thickness test, through which the amount of distributed fat is determined.
- Getting to know the diet by evaluating some tests that show the body’s activity in the sick person.
- Knowing the medical history of the case to access the health problems he suffers from.
Essential points when calculating body mass index
There are some basic things that must be taken into account when calculating the BMI for men or women, in order to obtain a correct value for body mass, and these points include:
- This method cannot be used to calculate BMI for children or pregnant women.
- It is possible to obtain a high mass index despite the individual having an ideal weight, and this is clearly shown in people who are athletic or who do weight lifting sports.
- There is no relationship between BMI and a healthy diet, it is possible that BMI is ideal for a person suffering from malnutrition, it is not a measure to determine the type of nutrition in an individual.
Read also: The results of protein deficiency in the body
How to measure BMI for children
It is not possible to measure the BMI for children, and this may be due to several reasons, as the BMI depends on some factors that can be calculated for adults only, but there are some ideal weights that can be applied to the child to identify the nature of his body if he suffers from thinness or fat
This may be considered a general average of the ideal weight for children at specified ages, which may vary in small proportions according to the child’s sex, and this difference is evident in the following:
- At the age of two years, the ideal weight for a boy is 12.7 kilograms, and a girl’s weight is 12.1 kilograms.
- At the age of three years, the ideal weight for a boy is 14.4 kg and the ideal weight for a girl is 13.9 kg.
- At the age of 4 years, a boy of 16.3 kg and a girl of 15.9 kg can be classified as being in the ideal weight for their age.
An increased BMI for children may indicate the possibility of developing a serious and chronic disease, and may be a sign that they may become obese in adulthood.
The body mass index for children and adolescents can be measured in percentage units, which can be used to show the weight of the child compared to weights close to him at the same age.
The Centers for Diseases also launched a scheme on the basis of which the body mass index of children and adolescents can be determined according to the value of the fetus, in which the body mass index of children of the same age of the same sex may be associated with the growth chart. The following can be used to determine the state of the body:
| body mass index (in percent) | Weight rating |
| less than 5% | Weight loss |
| 5% to 85% | normal weight |
| 85% to 95% | Increase in weight |
| 95% or more | suffers from obesity |
Other indicators by which body weight can be assessed
Calculating the body mass index may be one of the methods used to identify and evaluate the condition of the body, but there are other methods that are more accurate to identify the condition of the body and the appropriate weight.
It is also considered one of the ways in which the risk of contracting a disease is identified, in addition to conducting some medical examinations for some sick cases that suffer from some chronic diseases that accompany obesity and thinness diseases.
1- Assess body weight by waist circumference
It is possible to measure the waist circumference in revealing the health risks that may occur as a result of obesity or being overweight. The second.
In order for the waist circumference to be measured correctly, you must stand moderately straight, then place the measuring tape and wrap it at the top of the thigh bone, and then record the measurement after taking a breath directly from the exhale.
It can be inferred by measuring the waist circumference about the risk of health conditions related to obesity, and the possibility of this may increase when the waist circumference is greater than 101.6 centimeters for men and up to 88.9 centimeters for women, excluding pregnancies.
Read also: Methods for calculating the percentage and mass of fat in the body
2- Assessment of body weight based on waist-hip ratio
This method is considered one of the measurements by which the state of the body can be identified, as a number of doctors use it to determine the condition of the person or patient, whether he is obese or not, which may threaten his health as a result of the possibility of contracting some accompanying diseases.
This method may be opposite to the method of calculating the body mass index, which calculates the percentage of weight based on height, but this method depends on the ratio of waist circumference to hip circumference, which is based on which the amount of fat accumulated in the waist, hips and buttocks is determined.
The risk of being overweight is the same for all cases. People who are overweight in the middle, which makes them look like an apple, may have heart disease or type 2 diabetes, and they may be more likely to die prematurely.
3- Calculation of body weight based on the ratio of waist to height
The importance of this scale increased in recent years, as it was taken as an indicator of central obesity, which is known as abdominal obesity.
Some doctors have used this scale to identify the possibility of developing some diseases, including heart disease and diabetes. It can be calculated by dividing an individual’s waist circumference by his height. If the result is 0.5 or less, this is evidence that his weight is healthy.
4- Calculate the appropriate weight based on height
This method can be followed to find out the appropriate weight, through the following table that was created based on measuring body mass when it is 18.5 to 25, which is the ideal mass or that represents the normal body without suffering from any of the diseases of thinness or obesity, and here is that table:
| length cm | Appropriate weight in kg | length cm | Appropriate weight in kg |
| 150 | 41.6 – 56.3 | 175 | 56.7 – 76.6 |
| 151 | 42.2 – 57.0 | 176 | 57.3 – 77.4 |
| 152 | 42.8 – 57.8 | 177 | 58.0 – 78.3 |
| 153 | 43.3 – 58.5 | 178 | 58.6 – 79.2 |
| 154 | 43.9 – 59.3 | 179 | 59.3 – 80.1 |
| 155 | 44.5 – 60.1 | 180 | 60.0 – 81.0 |
| 156 | 45.0 – 60.8 | 181 | 60.6 – 81.9 |
| 157 | 45.6 – 61.6 | 182 | 61.3 – 82.8 |
| 158 | 46.2 – 62.4 | 183 | 62.0 – 83.7 |
| 159 | 46.8 – 63.2 | 184 | 62.7 – 84.6 |
| 160 | 47.4 – 64.0 | 185 | 63.4 – 85.6 |
| 161 | 48.0 – 64.8 | 186 | 64.0 – 86.5 |
| 162 | 48.6 – 65.6 | 187 | 64.7 – 87.4 |
| 163 | 49.2 – 66.4 | 188 | 65.4 – 88.4 |
| 164 | 49.8 – 67.2 | 189 | 66.1 – 89.3 |
| 165 | 50.4 – 68.1 | 190 | 66.8 – 90.3 |
| 166 | 51.0 – 68.9 | 191 | 67.5 – 91.2 |
| 167 | 51.6 – 69.7 | 192 | 68.2 – 92.2 |
| 168 | 52.2 – 70.6 | 193 | 68.9 – 93.1 |
| 169 | 52.9 – 71.4 | 194 | 69.7 – 94.1 |
| 170 | 53.5 – 72.3 | 195 | 70.4 – 95.1 |
| 171 | 54.1 – 73.1 | 196 | 71.1 – 96.0 |
| 172 | 54.8 – 74.0 | 197 | 71.8 – 97.0 |
| 173 | 55.4 – 74.8 | 198 | 72.6 – 98.0 |
| 174 | 56.0 – 75.7 | 199 | 73.3 – 99.0 |
| 175 | 56.7 – 76.6 | 200 | 74.0 – 100.0 |
Read also: Find out the body shape by weight and height
Tips to maintain a normal body mass
Maintaining a normal body mass depends on following some diets mainly to reach this, in addition to making a number of changes that affect the lifestyle that the individual lives, and that may cause him to become obese or underweight. These tips include the following points:
- Keep eating breakfast, which is one of the basic meals, as it must contain all the materials and elements that the body needs to give the necessary energy to start the day.
- Make sure to eat an appropriate amount of proteins in quantities and rates that help to feel full, and reduce appetite for people who suffer from obese diseases.
- Eating plenty of water, which is essential to maintain the body’s balance, and make the functions of organs work properly.
- Get enough rest and sleep, as lack of sleep causes the possibility of thinness.
- Include an appropriate amount of fiber in the daily diet.
- Exercising regularly, to maintain a healthy body weight, and burn extra calories on a regular basis.
- Reduce the amount of salt, saturated fat and sugars
- Make sure to eat a diet that contains vegetables, fruits, whole grains and low-fat dairy products.
- The reason for thinness or obesity may be related to the secretion of some hormones, so it is necessary in cases of obesity and thinness that tried to follow those previous tips, and do not make any change with them, that you go to the doctor for examinations and analysis of the glands.
Calculating the body mass index may be one of the ways to identify the state of the body’s health, but it alone is not considered a strong basis for knowing the medical condition of the body in general, except by conducting some accompanying tests.
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