In medicine, certain standards for height and weight have been established for both young children and adolescents. You can find these norms in the form of tables on the walls of children's clinics and in the offices of pediatricians. Thus, it is possible to track the development of children by the parameters of the ratio of height and weight.
However, the data on the height and weight table are relative, especially in adolescence. The fact is that the physical parameters of the human body are influenced by many factors, and not just his age.
Influence on height and weight parameters is exerted by heredity, the lifestyle of a teenager. Along with this, adolescents vary greatly in physique, bone mass, growth characteristics and weight gain. Therefore, it is necessary to take into account the conventionality of the ratio of the height and weight of adolescents in all the proposed tables. After all, this is a set of statistical data for several previous periods.
Explanations for Teen Height and Weight Tables
Since all the data are statistical, the tables most fully reflect the picture, nevertheless, compiled no later than 10 years ago and in the country in which you were born and live. After all, one must not lose sight of the fact that, in addition to the personal data of a person, the genotype of a particular nationality influences statistics. It would be foolish to look for a correspondence between the height and weight of a modern teenager with a teenager of African descent, and even in the early twentieth century.
In the presented anthropometric tables of the height and weight of a teenager, there are the percentage ratios of children with a particular height (weight).
The data in the three middle columns ("Below average", "Average", "Above average") characterize the physical characteristics of the majority of adolescents at this age.
The data in the second and penultimate columns (“Low” and “High”) characterize a smaller part of the entire population of adolescents at a given age. Although it is not necessary to attach excessive importance to this. Probably, such a jump or, on the contrary, the lag is caused by the individual characteristics of the organism of a particular teenager, and most likely there is no reason for worry.
As for the adolescent's measurements falling into one of the extreme columns ("Very low" and "Very high"), then it is better to consult a doctor. The doctor, in turn, will direct the adolescent to be tested for hormones, and confirm or deny the presence of diseases in the adolescent's endocrine system.
The differentiation between the height and weight norms of adolescents is analyzed in seven categories ("Very low", "Low", "Below average", "Average", "Above average" "High" body characteristics for people of the same age.
It is wrong to evaluate a teenager on the basis of data separately for height and weight. All comparisons need to be made collectively. If the height data puts the teenager in the “High” category, and the weight data in the “Very low” category, it is likely that such a large difference is due to a sharp rise in height and a lag in weight. It is much worse if, according to two parameters, a teenager falls into the "High" or "Low" category at once. Then it cannot be argued that there was a growth spurt, and the weight simply did not have time for it. In this case, it is still better to get tested for hormones in order to be confident in the health of your child.
If your child at any given time does not fall into the average height and weight norms of adolescents of his age, then you should not worry too much. You can measure it in a month and see any tendencies to change. In this case, based on these trends, it is worth drawing conclusions about whether you need to see a doctor.
Table: "Growth rates of boys from 7 to 17 years old"
| Age | Indicator in cm. | ||||||
| Very low | Short | Below the average | Average | Above average | High | Very tall | |
| 7 years | <111,0 | 111,0-113,6 | 113,6-116,8 | 116,8-125,0 | 125,0-128,0 | 128,0-130,6 | >130,6 |
| 8 years | <116,3 | 116,3-119,0 | 119,0-122,1 | 122,1-130,8 | 130,8-134,5 | 134,5-137,0 | >137,0 |
| 9 years | <121,5 | 121,5-124,7 | 124,7-125,6 | 125,6-136,3 | 136,3-140,3 | 140,3-143,0 | >143,0 |
| 10 years | <126,3 | 126,3-129,4 | 129,4-133,0 | 133,0-142,0 | 142,0-146,7 | 146,7-149,2 | >149,2 |
| 11 years | <131,3 | 131,3-134,5 | 134,5-138,5 | 138,5-148,3 | 148,3-152,9 | 152,9-156,2 | >156,2 |
| 12 years old | 136,2 | 136,2-140,0 | 140,0-143,6 | 143,6-154,5 | 154,5-159,5 | 159,5-163,5 | >163,5 |
| 13 years old | <141,8 | 141,8-145,7 | 145,7-149,8 | 149,8-160,6 | 160,6-166,0 | 166,0-170,7 | >170,7 |
| 14 years | <148,3 | 148,3-152,3 | 152,3-156,2 | 156,2-167,7 | 167,7-172,0 | 172,0-176,7 | >176,7 |
| 15 years | <154,6 | 154,6-158,6 | 158,6-162,5 | 162,5-173,5 | 173,5-177,6 | 177,6-181,6 | >181,6 |
| 16 years | <158,8 | 158,8-163,2 | 163,2-166,8 | 166,8-177,8 | 177,8-182,0 | 182,0-186,3 | >186,3 |
| 17 years | <162,8 | 162,8-166,6 | 166,6-171,6 | 171,6-181,6 | 181,6-186,0 | 186,0-188,5 | >188,5 |
Table: "Indicators of the weight of boys from 7 to 17 years old"
| Age | Indicator in cm. | ||||||
| Very low | Short | Below the average | Average | Above average | High | Very tall | |
| 7 years | <18,0 | 18,0-19,5 | 19,5-21,0 | 21,0-25,4 | 25,4-28,0 | 28,0-30,8 | >30,8 |
| 8 years | <20,0 | 20,0-21,5 | 21,5-23,3 | 23,3-28,3 | 28,3-31,4 | 31,4-35,5 | >35,5 |
| 9 years | <21,9 | 21,9-23,5 | 23,5-25,6 | 25,6-31,5 | 31,5-35,1 | 35,1-39,1 | >39,1 |
| 10 years | <23,9 | 23,9-25,6 | 25,6-28,2 | 28,2-35,1 | 35,1-39,7 | 39,7-44,7 | >44,7 |
| 11 years | <26,0 | 26,0-28,0 | 28,0-31,0 | 31,0-39,9 | 39,9-44,9 | 44,9-51,5 | >51,5 |
| 12 years old | <28,2 | 28,2-30,7 | 30,7-34,4 | 34,4-45,1 | 45,1-50,6 | 50,6-58,7 | >58,7 |
| 13 years old | <30,9 | 30,9-33,8 | 33,8-38,0 | 38,0-50,6 | 50,6-56,8 | 56,8-66,0 | >66,0 |
| 14 years | <34,3 | 34,3-38,0 | 38,0-42,8 | 42,8-56,6 | 56,6-63,4 | 63,4-73,2 | >73,2 |
| 15 years | <38,7 | 38,7-43,0 | 43,0-48,3 | 48,3-62,8 | 62,8-70,0 | 70,0-80,1 | >80,1 |
| 16 years | <44,0 | 44,0-48,3 | 48,3-54,0 | 54,0-69,6 | 69,6-76,5 | 76,5-84,7 | >84,7 |
| 17 years | <49,3 | 49,3-54,6 | 54,6-59,8 | 59,8-74,0 | 74,0-80,1 | 80,1-87,8 | >87,8 |
Table: "Growth rates of girls from 7 to 17 years old"
| Age | Indicator in cm. | ||||||
| Very low | Short | Below the average | Average | Above average | High | Very tall | |
| 7 years | <111,1 | 111,1-113,6 | 113,6-116,9 | 116,9-124,8 | 124,8-128,0 | 128,0-131,3 | >131,3 |
| 8 years | <116,5 | 116,5-119,3 | 119,3-123,0 | 123,0-131,0 | 131,0-134,3 | 134,3-137,7 | >137,7 |
| 9 years | <122,0 | 122,0-124,8 | 124,8-128,4 | 128,4-137,0 | 137,0-140,5 | 140,5-144,8 | >144,8 |
| 10 years | <127,0 | 127,0-130,5 | 130,5-134,3 | 134,3-142,9 | 142,9-146,7 | 146,7-151,0 | >151,0 |
| 11 years | <131,8 | 131,8-136, | 136,2-140,2 | 140,2-148,8 | 148,8-153,2 | 153,2-157,7 | >157,7 |
| 12 years old | <137,6 | 137,6-142,2 | 142,2-145,9 | 145,9-154,2 | 154,2-159,2 | 159,2-163,2 | >163,2 |
| 13 years old | <143,0 | 143,0-148,3 | 148,3-151,8 | 151,8-159,8 | 159,8-163,7 | 163,7-168,0 | >168,0 |
| 14 years | <147,8 | 147,8-152,6 | 152,6-155,4 | 155,4-163,6 | 163,6-167,2 | 167,2-171,2 | >171,2 |
| 15 years | <150,7 | 150,7-154,4 | 154,4-157,2 | 157,2-166,0 | 166,0-169,2 | 169,2-173,4 | >173,4 |
| 16 years | <151,6 | 151,6-155,2 | 155,2-158,0 | 158,0-166,8 | 166,8-170,2 | 170,2-173,8 | >173,8 |
| 17 years | <152,2 | 152,2-155,8 | 155,8-158,6 | 158,6-169,2 | 169,2-170,4 | 170,4-174,2 | >174,2 |
Table: "Indicators of the weight of girls from 7 to 17 years old"
| Age | Indicator in cm. | ||||||
| Very low | Short | Below the average | Average | Above average | High | Very tall | |
| 7 years | <17,9 | 17,9-19,4 | 19,4-20,6 | 20,6-25,3 | 25,3-28,3 | 28,3-31,6 | >31,6 |
| 8 years | <20,0 | 20,0-21,4 | 21,4-23,0 | 23,0-28,5 | 28,5-32,1 | 32,1-36,3 | >36,3 |
| 9 years | <21,9 | 21,9-23,4 | 23,4-25,5 | 25,5-32,0 | 32,0-36,3 | 36,3-41,0 | >41,0 |
| 10 years | <22,7 | 22,7-25,0 | 25,0-27,7 | 27,7-34,9 | 34,9-39,8 | 39,8-47,4 | >47,4 |
| 11 years | <24,9 | 24,9-27,8 | 27,8-30,7 | 30,7-38,9 | 38,9-44,6 | 44,6-55,2 | >55,2 |
| 12 years old | <27,8 | 27,8-31,8 | 31,8-36,0 | 36,0-45,4 | 45,4-51,8 | 51,8-63,4 | >63,4 |
| 13 years old | <32,0 | 32,0-38,7 | 38,7-43,0 | 43,0-52,5 | 52,5-59,0 | 59,0-69,0 | >69,0 |
| 14 years | <37,6 | 37,6-43,8 | 43,8-48,2 | 48,2-58,0 | 58,0-64,0 | 64,0-72,2 | >72,2 |
| 15 years | <42,0 | 42,0-46,8 | 46,8-50,6 | 50,6-60,4 | 60,4-66,5 | 66,5-74,9 | >74,9 |
| 16 years | <45,2 | 45,2-48,4 | 48,4-51,8 | 51,8-61,3 | 61,3-67,6 | 67,6-75,6 | >75,6 |
| 17 years | <46,2 | 46,2-49,2 | 49,2-52,9 | 52,9-61,9 | 61,9-68,0 | 68,0-76,0 | >76,0 |
Well, that's all, dear readers, we have considered with you the indicators of weight and height for girls and boys, adolescents aged seven to seventeen years. I hope these tables are useful for you.
Publication source: revision of the site article http://womanadvice.ru/tablica-rosta-i-vesa-podrostkov
Weight and height are important indicators of the physical condition and health of children. It is believed that they depend on human genetics. All children are different, but being overweight or underweight can indicate poor nutrition or serious health problems. Very fast or slow growth can be a signal that the body's systems are not functioning properly.
The height and weight of the child is primarily influenced by genetics, but there are still many factors on which these indicators depend.What factors influence height and weight indicators?
The following factors influence height and weight indicators:
- genetic predisposition (heredity, ethnicity);
- growth hormones;
- diseases transferred at an early age;
- the functioning of the endocrine system;
- hormonal surge during puberty;
- psychological environment in the family;
- food and sleep;
- chronic pathologies;
- physical exercise;
- hemoglobin level;
- body weight is directly proportional to length.
What height and weight should the baby be born with?
At birth, the weight of a full-term baby ranges from 2500 g to 4500 g. Boys tend to weigh more than girls. The maximum weight for a baby usually does not exceed 4.5 kg. Average weight - 3.2-3.4 kg. The body length of newborns is 45-54 cm. The average height is 49-52 cm. The body length of girls is usually in the range of 49-51 cm.
As you can see, the range of physical indicators of a child at birth is quite wide. The baby's data is influenced by various factors: hereditary predisposition, at what time the baby was born (38-40 weeks), features of the mother's pregnancy. It should be said that children of the same parents can be born with different physiological data.
Height and weight of premature babies
Weight of children, depending on the degree of their prematurity:
If a premature baby is healthy, he quickly gains in height and weight. The body length in children born prematurely is usually less than 45 cm. Their physique is disproportionate, the subcutaneous fat layer is not formed, the seams of the skull are open, the skin is overflowing with blood. Newborns who are in a hurry to be born are nursed under special conditions. With proper care by the first year of life, such children are no different from those born on time.
WHO Child Growth Tables
All children develop at their own pace. However, there are certain norms of weight gain and height, which doctors are guided by when determining the physical condition of the child. These data are collected in tables developed by the World Health Organization (WHO). Consider the WHO tables on the example of girls' development.
Normal indicators in girls under one year old
In the first year of life, children develop most actively. Immediately after birth, newborns can lose weight up to 300 g. However, in the first three months of life, the baby is able to gain up to 750 g monthly, in the next three months - 700 g each, from 7 to 9 months of life - 550 g each, 9-12 months - 350 g. Children who are bottle-fed gain weight faster.
Babies are growing no less intensively. The ideal increase in length for babies from 1 to 3 months is 3.5 cm, 4-6 months - 2.5 cm, 7-9 months - 1.5-2 cm (see also :). From 9 months to one year, children grow another 1 cm per month. The average weight of a child per year is in the range from 8900 to 9600 g. The body length is from 74 to 76 cm.
On average, children are born with a weight of 2.9-3.5 kg and a height of about 52 cm Table of weight norms from 0 to 12 months:
| Age, months | Weight, kg | ||||
| short | lower limit of the norm | norm | upper limit of the norm | high | |
| 0 | 2,4-2,8 | 2,8 | 3,2 | 3,7 | 3,7-4,2 |
| 1 | 3,2-3,6 | 3,6 | 4,2 | 4,8 | 4,8-5,5 |
| 2 | 3,9-4,5 | 4,5 | 5,1 | 5,8 | 5,8-6,6 |
| 3 | 4,5-5,2 | 5,2 | 5,9 | 6,6 | 6,6-7,5 |
| 4 | 5,0-5,7 | 5,7 | 6,4 | 7,3 | 7,3-8,2 |
| 5 | 5,4-6,1 | 6,1 | 6,9 | 7,8 | 7,8-8,8 |
| 6 | 5,7-6,5 | 6,5 | 7,3 | 8,3 | 8,3-9,4 |
| 7 | 6,0-6,8 | 6,8 | 7,6 | 8,6 | 8,6-9,8 |
| 8 | 6,2-7,0 | 7,0 | 8,0 | 9,0 | 9,9-10,2 |
| 9 | 6,5-7,3 | 7,3 | 8,2 | 9,3 | 9,3-10,6 |
| 10 | 6,7-7,5 | 7,5 | 8,5 | 9,6 | 9,6-10,9 |
| 11 | 6,9-7,7 | 7,7 | 8,7 | 9,9 | 9,9-11,2 |
| 12 | 7,0-7,9 | 7,9 | 9,0 | 10,1 | 10,1-11,5 |
Based on the data, the weight indicator for a one-year-old baby of 7.9-10.1 kg is considered ideal (we recommend reading :).
The weight of one-year-old girls can vary greatly - there are "thin" ones, and there are "little pyshechki" Low and high weight is not critical, it can be caused by a genetic predisposition or the characteristics of the course of pregnancy. If your baby's performance goes beyond low or high, doctors will do more research to rule out health problems.
Table of growth rates from 0 to 12 months according to WHO:
| Age, months | Height, cm | ||||
| short | lower limit of the norm | norm | upper limit of the norm | high | |
| 0 | 45,4-47,3 | 47,3 | 49,2 | 51,0 | 51,0-52,9 |
| 1 | 49,8-51,7 | 51,7 | 53,7 | 55,6 | 55,6-57,6 |
| 2 | 53,0-55,0 | 55,0 | 57,1 | 59,1 | 59,1-61,2 |
| 3 | 55,6-57,7 | 57,7 | 59,8 | 61,9 | 61,9-64,0 |
| 4 | 57,8-59,9 | 59,9 | 62,1 | 64,3 | 64,3-66,4 |
| 5 | 59,6-61,8 | 61,8 | 64,0 | 66,3 | 66,3-68,5 |
| 6 | 61,2-63,5 | 63,5 | 65,7 | 68,0 | 68,0-70,3 |
| 7 | 62,7-65,0 | 65,0 | 67,3 | 69,6 | 69,6-71,9 |
| 8 | 64,0-66,4 | 66,4 | 68,8 | 71,1 | 71,1-73,5 |
| 9 | 65,3-67,7 | 67,7 | 70,1 | 72,6 | 72,6-75,0 |
| 10 | 66,5-69,0 | 69,0 | 71,5 | 74,0 | 74,0-76,4 |
| 11 | 67,7-70,3 | 70,3 | 72,8 | 75,3 | 75,3-77,8 |
| 12 | 68,9-71,4 | 71,4 | 74,0 | 76,6 | 76,6-79,2 |
Children's age from one to 10 years
In the period from a year to 10 years, the child's musculoskeletal system is formed and strengthened, the work of all internal organs is getting better.
With insufficient nutrition, improper distribution of physical activity in children, various diseases can develop. Therefore, it is as necessary to follow the norms at this age as in infancy.
Table of weight norms for the ages of 1 to 10 years:
| Age | Weight, kg | ||||
| short | lower limit of the norm | norm | upper limit of the norm | high | |
| 15 months | from 7.6 | 8,5 | 9,6 | 10,9 | 10,9-12,4 |
| 18 months | 8,1-9,1 | 9,1 | 10,2 | 11,6 | 11,6-13,2 |
| 21 months | 8,6-9,6 | 9,6 | 10,9 | 12,3 | 12,3-14,0 |
| 2 years | 9,0-10,2 | 10,2 | 11,5 | 13,0 | 13,0-14,8 |
| 27 months | 9,5-10,7 | 10,7 | 12,1 | 13,7 | 13,7-15,7 |
| 30 months | 10,0-11,2 | 11,2 | 12,7 | 14,4 | 14,4-16,5 |
| 33 months | 10,4-11,7 | 11,7 | 13,3 | 15,1 | 15,1-17,3 |
| 3 years | 10,8-12,2 | 12,2 | 13,9 | 15,8 | 15,8-18,1 |
| 3.5 years | 11,6-13,1 | 13,1 | 15,0 | 17,2 | 17,2-19,8 |
| 4 years | 12,3-14,0 | 14,0 | 16,1 | 18,5 | 18,5-21,5 |
| 4.5 years | 13,0-14,9 | 14,9 | 17,2 | 19,9 | 19,9-23,2 |
| 5 years | 13,7-15,8 | 15,8 | 18,2 | 21,2 | 21,2-24,9 |
| 5.5 years | 14,6-16,6 | 16,6 | 19,1 | 22,2 | 22,2-26,2 |
| 6 years | 15,3-17,5 | 17,5 | 20,2 | 23,5 | 23,5-27,8 |
| 6.5 years | 16,0-18,3 | 18,3 | 21,2 | 24,9 | 24,9-29,6 |
| 7 years | 16,8-19,3 | 19,3 | 22,4 | 26,3 | 26,3-31,4 |
| 8 years | 18,6-21,4 | 21,4 | 25,0 | 29,7 | 29,7-35,8 |
| 9 years | 20,8-24,0 | 24,0 | 28,2 | 33,6 | 33,6-41,0 |
| 10 years | 23,3-27,0 | 27,0 | 31,9 | 38,2 | 38,2-46,9 |
It is important to monitor the child's weight norms, and if the girl is overweight, be sure to take action! Growth chart from 1 to 10 years old:
| Age, months | Height, cm | ||||
| short | lower limit of the norm | norm | upper limit of the norm | high | |
| 15 months | 72,0-74,8 | 74,8 | 77,5 | 80,2 | 80,2-83,0 |
| 18 months | 74,9-77,8 | 77,8 | 80,7 | 83,6 | 83,6-86,5 |
| 21 months | 77,5-80,6 | 80,6 | 83,7 | 86,7 | 86,7-89,8 |
| 2 years | 80,0-83,2 | 83,2 | 86,4 | 89,6 | 89,6-92,9 |
| 27 months | 81,5-84,9 | 84,9 | 88,3 | 91,7 | 91,7-95,0 |
| 30 months | 83,6-87,1 | 87,1 | 90,7 | 94,2 | 94,2-97,7 |
| 33 months | 85,6-89,3 | 89,3 | 92,9 | 96,6 | 96,6-100,3 |
| 3 years | 87,4-91,2 | 91,2 | 95,1 | 98,9 | 98,9-102,7 |
| 3.5 years | 90,9-95,0 | 95,0 | 99,0 | 103,1 | 103,1-107,2 |
| 4 years | 94,1-98,4 | 98,4 | 102,7 | 107,0 | 107,0-111,3 |
| 4.5 years | 97,1-101,6 | 101,6 | 106,2 | 110,7 | 110,7-115,2 |
| 5 years | 99,9-104,7 | 104,7 | 109,4 | 114,2 | 114,2-118,9 |
| 5.5 years | 102,3-107,2 | 107,2 | 112,2 | 117,1 | 117,1-122,0 |
| 6 years | 104,9-110,0 | 110,0 | 115,1 | 120,2 | 120,2-125,4 |
| 6.5 years | 107,4-112,7 | 112,7 | 118,0 | 123,3 | 123,3-128,6 |
| 7 years | 109,9-115,3 | 115,3 | 120,8 | 126,3 | 126,3-131,7 |
| 8 years | 115,0-120,8 | 120,8 | 126,6 | 132,4 | 132,4-138,2 |
| 9 years | 120,3-126,4 | 126,4 | 132,5 | 138,6 | 138,6-144,0 |
| 10 years | 125,8-132,2 | 132,2 | 138,6 | 145,0 | 145,0-151,4 |
Keeping track of school-age girls' height and weight rates is as important as in infancy Development of girls from 11 to 18 years old
Ages 11 to 18 are considered adolescents. At this time, intensive changes take place in the body of children. On the outside, this is especially noticeable. A chubby baby can turn into an ideal girl, and a skinny one can get into shape. Such changes are caused by hormonal changes in the body. It is necessary to understand when such changes are normal, and in which case you need to sound the alarm.
Consider the weight table for teenage girls:
| Age, years | Weight, kg | ||||
| short | lower limit of the norm | norm | upper limit of the norm | high | |
| 11 | 24,9-27,8 | 27,8-30,7 | 30,7-38,9 | 38,9-44,6 | 44,6-55,2 |
| 12 | 27,8-31,8 | 31,8-36,0 | 36,0-45,4 | 45,4-51,8 | 51,8-63,4 |
| 13 | 32,0-38,7 | 38,7-43,0 | 43,0-52,5 | 52,5-59,0 | 59,0-69,0 |
| 14 | 37,6-43,8 | 43,8-48,2 | 48,2-58,0 | 58,0-64,0 | 64,0-72,2 |
| 15 | 42,0-46,8 | 46,8-50,6 | 50,6-60,4 | 60,4-66,5 | 66,5-74,9 |
| 16 | 45,2-48,4 | 48,4-51,8 | 51,8-61,3 | 61,3-67,6 | 67,6-75,6 |
| 17-18 | 46,2-49,2 | 49,2-52,9 | 52,9-61,9 | 61,9-68,0 | 68,0-76,0 |
By instilling the principles of good nutrition, the weight of adolescents will meet the norms Teenage Growth Chart:
| Age, years | Height, cm | ||||
| low, up to | lower limit of the norm | norm | upper limit of the norm | high | |
| 11 | 136,2 | 136,2–140,2 | 140,2–148,8 | 148,8–153,2 | 153,2–157,7 |
| 12 | 142,2 | 142,2–145,9 | 145,9–154,2 | 154,2–159,2 | 159,2–163,2 |
| 13 | 148,3 | 148,3–151,8 | 151,8–159,8 | 159,8–163,7 | 163,7–168,0 |
| 14 | 152,6 | 152,6–155,4 | 155,4–163,6 | 163,6–167,2 | 167,2–171,2 |
| 15 | 154,4 | 154,4–157,2 | 157,2–166,0 | 166,0–169,2 | 169,2–173,4 |
| 16 | 152,6 | 155,2–158,0 | 158,0–166,8 | 166,8–170,2 | 170,2–173,8 |
| 17-18 | 155,8 | 155,8–158,6 | 158,6–169,2 | 169,2–170,4 | 170,4–174,2 |
The height of high school students can vary greatly: from 150 to 175 cm Is it possible to calculate the height of a child by the height of the parents?
There are several formulas for the approximate calculation of a child's height in relation to the height of his parents:
- To calculate the height of the girl (RD), you need to add the height of the father (PO) with the height of the mother (RM), multiply by 0.51 and subtract 7.5 cm. The author of this formula is unknown.
- Another formula belongs to the Czechoslovakian V. Karkus. RD cm = (PO cm * 0.923 + RM cm) / 2.
- Dr. J. Hawker proposed to calculate the height as follows: RD = (PO + RM) / 2 - 6.4.
- Smirnov and Gorbunov's formula: RD = (PO + RM -12.5) / 2 ± 8.
- Another formula calculates the height based on the data of the child per year (WG). RD = WG + 100 cm - 5 cm.
Periods of Intense Growth in Children: When Are Races?
The fastest growing girls develop from 10 to 13 years old. This is explained by active puberty.
During this period, the teenager's body receives a great hormonal shock. During puberty, a girl-to-be can grow up to 8 cm per year. Her figure will also change significantly - weight gain or loss is possible.
If the child is too tall
A child's height is considered a hereditary factor. If the family has tall parents, then the baby will be tall from childhood. However, too much deviation from the age norms of a child can be a signal that there are significant problems in his body. In addition to early puberty, high growth in children can be caused by:
- high content of growth hormones;
- obesity;
- chromosome pathology;
- a pituitary tumor;
- Marfan syndrome;
- dysfunction of the pituitary gland.
What if the child is very young?
The small stature of the child, if it is not due to a genetic predisposition, should also cause anxiety in the parents.
If parents notice that the baby is growing poorly and is not gaining weight, they need to see a specialist.
The doctor will study the history of his growth gains, examine the child, and analyze the diseases he has suffered. In the event that the parents' doubts turn out to be justified, a thyroid examination is prescribed. To exclude rickets, the child is prescribed an ultrasound scan. In parallel with these studies, the pediatrician must order tests to check the blood for the level of growth hormone and hemoglobin. Sometimes a study of the child's bone age is carried out using an X-ray of the bones.
Overweight problems in adolescents begin with puberty.
The weight loss portal "Lose Weight Without Problems" will tell you how you can lose weight at the age of 14.
Overweight reasons
At this age, the body is actively growing, muscles, bone and hormonal systems develop. Often, adolescents develop excessive obesity, which is not only unaesthetic, but also dangerous.
Being overweight by 29% indicates obesity.
There may be several reasons and a specialist should establish them:
- endocrine disorders;
- heart disease;
- diabetes;
- heredity, etc.
In such cases, special diets are required to maintain a stable weight. Most of the extra pounds are the result of improper eating habits and a sedentary lifestyle.
“I'm 14, how to lose weight ?. advises, first of all, to calculate the optimal weight of a teenager using the body mass index (BMI): height in cm minus 100. For example, with a height of 1m 53 cm, the normal weight will be 53 kg (153-100 = 53).
This is very important, since many teenagers at this age cannot assess themselves objectively and follow the generally accepted standards of the fashion world, striving to look like fashion models from the catwalks. The pursuit of such pseudo-beauty ends in failure: disturbances in the functioning of the body can cause the development of severe ailments.
How to lose weight teenager 14 years old
Extra pounds are often the impetus for the emergence of psychological trauma and complexes.
If the cause of overweight is not serious illness, then you can get rid of it using a set of measures, which include:
- proper nutritious nutrition;
- sports and physical activity;
- strict daily regimen.
How to lose weight at the age of 14? The principles of combating obesity are the same for any age group, but in this case there is a strict taboo on harsh starvation diets. Nutrition should be complete and rational, include trace elements and vitamins necessary for the formation of the body.
Nutritionists advise to eat 5 times a day in small portions.
As for the so-called "snacks", they can consist of raisins, prunes, nuts, but not chips or a sandwich with smoked sausage.
It is very good to consume more water - it helps to get rid of the feeling of hunger and protects from excess calories.
The daily diet of a teenager includes cereals, herbs, vegetables, fruits, lean meat, seafood, milk. The menu should include coarse bread, healthy mono- and polyunsaturated fats. For dinner, it is best to eat protein foods: cottage cheese, kefir, low-fat fish.
No need to eat after 7pm.
Physical education and sports are the main allies answering the question of how to lose weight for a 14-year-old child. Here you can use the formula "How many calories ate, use up as much". Active sports will help to consolidate the results achieved with the help of nutrition, will make it possible to correct problem areas of the figure and add self-confidence.
Anything will do - cycling, rollerblading, swimming, fitness classes, dancing.
Speaking about how to lose weight for a girl of 14 years old, it should be mentioned that there are specially designed sets of exercises that help to cope with extra centimeters and reduce the size of the waist or.
How to lose weight for a 14-year-old boy if he leads the wrong way of life?
Compliance with the daily routine is perhaps the most difficult thing to achieve from adolescents. Considering that at this time not only physical formation, but also psychological formation takes place, the child should have a strong motivation to go to bed on time, and not sit up late at the computer. Teenagers at this age begin to pay attention to the opposite sex, want to be liked, to be popular.
Helping to find meaningful arguments for adhering to the regime is the task of parents, because a cheerful appearance and a slender figure are the components of beauty.
Caution - this is prohibited!
In addition to hungry diets, you can not use pills and various dubious weight loss drugs that promise to make your figure slim in a short time. Cosmetic procedures such as wraps, mesotherapy, lymphatic drainage, etc. are contraindicated. At this age, you need to lose kilograms gradually, so as not to cause a malfunction in the body.
But massage of problem areas will have a beneficial effect and help to reduce the volume.
If you monitor your diet and physical activity, you will not have to think about losing weight at the age of 14. A healthy and active lifestyle during puberty is the key to the normal development of a figure and a beautiful physique in the future.
One of the indicators of the normal development of each child is the correct ratio of height and weight, appropriate for age. Many parents are worried looking at their sons: it seems that they were born large, but by school age they became disproportionately thin and long. Do not worry too early: to determine whether this is a variant of the norm, the table of the height and weight of boys by years will help.
Physical development of boys
The data for the height and weight of boys according to the WHO tables were updated in 2006 and are relevant to this day. In addition to the ratio of body length and weight, for WHO, parameters such as the circumference of the head and chest of children are also important: these indicators provide additional confirmation that the boy is developing normally. It is especially important to measure the circumference up to a year by months: at each appointment, the pediatrician must, in addition to putting the child on the scales and height meter, measure the head and chest with a measuring tape. Russian data slightly differ from the WHO data, they are an average value.
The average height and weight of boys under 18 can be checked in the tables:
From birth to 2 years:
| Year + month | Weight, kg) | Height (cm) | Month |
|---|---|---|---|
| birth | 3,60 | 50 | 0 |
| 1 month | 4,45 | 54,5 | 1 |
| 2 months | 5,25 | 58,0 |
2 |
| 3 months | 6,05 | 61 | 3 |
| 4 months | 6,7 | 63 | 4 |
| 5 months | 7,3 | 65 | 5 |
| 6 months | 7,9 | 67 | 6 |
| 7 months | 8,4 | 68,7 | 7 |
| 8 months | 8,85 | 70,3 | 8 |
| 9 months | 9,25 | 71,7 | 9 |
| 10 months | 9,65 | 73 | 10 |
| 11 months | 10 | 74,3 | 11 |
| 1 year | 10,3 | 75,5 | 12 |
| 1 year 1 month | 10,6 | 76,8 | 13 |
| 1 year 2 months | 10,9 | 78 | 14 |
| 1 year 3 months | 11,1 | 79 | 15 |
| 1 year 4 months | 11,3 | 80 | 16 |
| 1 year 5 months | 11,5 | 81 | 17 |
| 1 year 6 months | 11,7 | 82 | 18 |
| 1 year 7 months | 11,9 | 83 | 19 |
| 1 year 8 months | 12,1 | 83,9 | 20 |
| 1 year 9 months | 12,2 | 84,7 | 21 |
| 1 year 10 months | 12,4 | 85,6 | 22 |
| 1 year 11 months | 12,3 | 86,4 | 23 |
| 2 years | 12,7 | 87,3 | 24 |
From two years old:
| Age (years) | Weight, kg) | Height (cm) |
|---|---|---|
| 2 | 12,7 | 86,5 |
| 2,5 | 13,6 | 91,1 |
| 3 | 14,4 | 95 |
| 3,5 | 15,2 | 98,8 |
| 4 | 16,3 | 102,4 |
| 4,5 | 17,3 | 105,7 |
| 5 | 18,6 | 109,0 |
| 5,5 | 19,6 | 112,2 |
| 6 | 20,9 | 115,5 |
| 6,5 | 21,9 | 118,6 |
| 7 | 23,0 | 121,7 |
| 7,5 | 24,4 | 124,9 |
| 8 | 25,7 | 128,0 |
| 8,5 | 27,1 | 130,7 |
| 9 | 28,5 | 133,4 |
| 9,5 | 30,2 | 136,2 |
| 10 | 31,9 | 138,7 |
| 10,5 | 34 | 141,2 |
| 11 | 35,9 | 143,5 |
| 11,5 | 38,2 | 146,2 |
| 12 | 40,6 | 149,1 |
| 12,5 | 43 | 152,4 |
| 13 | 45,8 | 156,2 |
| 13,5 | 48,4 | 160,2 |
| 14 | 51,1 | 163,9 |
| 14,5 | 53,8 | 167,4 |
| 15 | 56,3 | 170,0 |
| 15,5 | 58,8 | 172,0 |
| 16 | 60,9 | 173,5 |
| 16,5 | 62,9 | 174,6 |
| 17 | 64,7 | 175,3 |
| 17,5 | 66,1 | 175,8 |
| 18 | 67,4 | 176,2 |
Is the boy developing harmoniously?
Boys on average grow up to 22 years old. At the same time, the average height of the male population of Russia is 178 cm. The increase in the height and weight of boys is especially intense in the first year after birth and during puberty (from 11 to 18 years). On average, during this time, the weight of the guys increases by 35 kg, and their height - by 35 cm.
How proportional is the ratio of height and weight, you can find out using the centile table. The columns indicate the quantitative boundaries of the growth and weight indicators for a certain percentage of boys; an interval of 25% -75% is taken as averages. If the boy's indicators are included in these corridors, then this is the norm. Columns before and after these intervals are indicators below (10% -25%) and above (75% -90%) of the norm. If the boy's height and weight are in the extreme corridors, this is a reason to see a doctor. It is very important that both height and weight are in the same corridor (+/- one column).
It's easy to use:
- In the table "Height" in the left column we find the age of the boy, and horizontally from this number - the height.
- In the same way we determine the boy's weight according to the "Weight" table.
Rate ratio the age, height and weight of the boy you can use the following tables:
| Age | Growth | ||||||
|---|---|---|---|---|---|---|---|
| 3% | 10% | 25% | 50% | 75% | 90% | 97% | |
| very low | short |
below
middle |
average |
above
middle |
high |
very
high |
|
| newborn | 46,5 | 48,0 | 49,8 | 51,3 | 52,3 | 53,5 | 55,0 |
| 1 month | 49,5 | 51,2 | 52,7 | 54,5 | 55,6 | 56,5 | 57,3 |
| 2 months | 52,6 | 53,8 | 55,3 | 57,3 | 58,2 | 59,4 | 60,9 |
| 3 months | 55,3 | 56,5 | 58,1 | 60,0 | 60,9 | 62,0 | 63,8 |
| 4 months | 57,5 | 58,7 | 60,6 | 62,0 | 63,1 | 64,5 | 66,3 |
| 5 months | 59,9 | 61,1 | 62,3 | 64,3 | 65,6 | 67,0 | 68,9 |
| 6 months | 61,7 | 63,0 | 64,8 | 66,1 | 67,7 | 69,0 | 71,2 |
| 7 months | 63,8 | 65,1 | 66,3 | 68,0 | 69,8 | 71,1 | 73,5 |
| 8 months | 65,5 | 66,8 | 68,1 | 70,0 | 71,3 | 73,1 | 75,3 |
| 9 months |
67,3 | 68,2 | 69,8 | 71,3 | 73,2 | 75,1 | 78,8 |
| 10 months |
68,8 | 69,1 | 71,2 | 73,0 | 75,1 | 76,9 | 78,8 |
| 11 months |
70,1 | 71,3 | 72,6 | 74,3 | 76,2 | 78,0 | 80,3 |
| 1 year |
71,2 | 72,3 | 74,0 | 75,5 | 77,3 | 79,7 | 81,7 |
| 1.5 years | 76,9 | 78,4 | 79,8 | 81,7 | 83,9 | 85,9 | 89,4 |
| 2 years | 81,3 | 83,0 | 84,5 | 86,8 | 89,0 | 90,8 | 94,0 |
| 2.5 years | 84,5 | 87,0 | 89,0 | 91,3 | 93,7 | 95,5 | 99,0 |
| 3 years | 88,0 | 90,0 | 92,3 | 96,0 | 99,8 | 102,0 | 104,5 |
| 3.5 years | 90,3 | 92,6 | 95,0 | 99,1 | 102,5 | 105,0 | 107,5 |
| 4 years | 93,2 | 95,5 | 98,3 | 102,0 | 105,5 | 108,0 | 110,6 |
| 4.5 years | 96,0 | 98,3 | 101,2 | 105,1 | 108,6 | 111,0 | 113,6 |
| 5 years | 98,9 | 101,5 | 104,4 | 108,3 | 112,0 | 114,5 | 117,0 |
| 5.5 years | 101,8 | 104,7 | 107,8 | 111,5 | 115,1 | 118,0 | 120,6 |
| 6 years | 105,0 | 107,7 | 110,9 | 115,0 | 118,7 | 121,1 | 123,8 |
| 6.5 years | 108,0 | 110,8 | 113,8 | 118,2 | 121,8 | 124,6 | 127,2 |
| 7 years | 111,0 | 113,6 | 116,8 | 121,2 | 125,0 | 128,0 | 130,6 |
| 8 years |
116,3 | 119,0 | 122,1 | 126,9 | 130,8 | 134,5 | 137,0 |
| 9 years |
121,5 | 124,7 | 125,6 | 133,4 | 136,3 | 140,3 | 143,0 |
| 10 years |
126,3 | 129,4 | 133,0 | 137,8 | 142,0 | 146,7 | 149,2 |
| 11 years |
131,3 | 134,5 | 138,5 | 143,2 | 148,3 | 152,9 | 156,2 |
| 12 years old |
136,2 | 140,0 | 143,6 | 149,2 | 154,5 | 159,5 | 163,5 |
| 13 years old |
141,8 | 145,7 | 149,8 | 154,8 | 160,6 | 166,0 | 170,7 |
| 14 years |
148,3 | 152,3 | 156,2 | 161,2 | 167,7 | 172,0 | 176,7 |
| 15 years |
154,6 | 158,6 | 162,5 | 166,8 | 173,5 | 177,6 | 181,6 |
| 16 years |
158,8 | 163,2 | 166,8 | 173,3 | 177,8 | 182,0 | 186,3 |
| 17 years |
162,8 | 166,6 | 171,6 | 177,3 | 181,6 | 186,0 | 188,5 |
| Age | Weight | ||||||
|---|---|---|---|---|---|---|---|
| 3% | 10% | 25% | 50% | 75% | 90% | 97% | |
|
very short |
short |
below middle |
average |
above middle |
high |
very high |
|
| newborn | 2,7 | 2,9 | 3,1 | 3,4 | 3,7 | 3,9 | 4,2 |
| 1 month | 3,3 | 3,6 | 4,0 | 4,3 | 4,7 | 5,1 | 5,4 |
| 2 months |
3,9 | 4,2 | 4,6 | 5,1 | 5,6 | 6,0 | 6,4 |
| 3 months |
4,5 | 4,9 | 5,3 | 5,8 | 6,4 | 7,0 | 7,3 |
| 4 months |
5,1 | 5,5 | 6,0 | 6,5 | 7,2 | 7,6 | 8,1 |
| 5 months |
5,6 | 6,1 | 6,5 | 7,1 | 7,8 | 8,3 | 8,8 |
| 6 months |
6,1 | 6,6 | 7,1 | 7,6 | 8,4 | 9,0 | 9,4 |
| 7 months |
6,6 | 7,1 | 7,6 | 8,2 | 8,9 | 9,5 | 9,9 |
| 8 months |
7,1 | 7,5 | 8,0 | 8,6 | 9,4 | 10,0 | 10,5 |
| 9 months |
7,5 | 7,9 | 8,4 | 9,1 | 9,8 | 10,5 | 11,0 |
| 10 months |
7,9 | 8,3 | 8,8 | 9,5 | 10,3 | 10,9 | 11,4 |
| 11 months |
8,2 | 8,6 | 9,1 | 9,8 | 10,6 | 11,2 | 11,8 |
| 1 year | 8,5 | 8,9 | 9,4 | 10,0 | 10,9 | 11,6 | 12,1 |
| 1.5 years | 9,7 | 10,2 | 10,7 | 11,5 | 12,4 | 13,0 | 13,7 |
| 2 years | 10,6 | 11,0 | 11,7 | 12,6 | 13,5 | 14,2 | 15,0 |
| 2.5 years | 11,4 | 11,9 | 12,6 | 13,7 | 14,6 | 15,4 | 16,1 |
| 3 years | 12,1 | 12,8 | 13,8 | 14,8 | 16,0 | 16,9 | 17,7 |
| 3.5 years | 12,7 | 13,5 | 14,3 | 15,6 | 16,8 | 17,9 | 18,8 |
| 4 years | 13,4 | 14,2 | 15,1 | 16,4 | 17,8 | 19,4 | 20,3 |
| 4.5 years | 14,0 | 14,9 | 15,9 | 17,2 | 18,8 | 20,3 | 21,6 |
| 5 years | 14,8 | 15,7 | 16,8 | 18,3 | 20,0 | 21,7 | 23,4 |
| 5.5 years | 15,5 | 16,6 | 17,7 | 19,3 | 21,3 | 23,2 | 24,9 |
| 6 years | 16,3 | 17,5 | 18,8 | 20,4 | 22,6 | 24,7 | 26,7 |
| 6.5 years | 17,2 | 18,6 | 19,9 | 21,6 | 23,9 | 26,3 | 28,8 |
| 7 years | 18,0 | 19,5 | 21,0 | 22,9 | 25,4 | 28,0 | 30,8 |
| 8 years | 20,0 | 21,5 | 23,3 | 25,5 | 28,3 | 31,4 | 35,5 |
| 9 years | 21,9 | 23,5 | 25,6 | 28,1 | 31,5 | 35,1 | 39,1 |
| 10 years | 23,9 | 25,6 | 28,2 | 31,4 | 35,1 | 39,7 | 44,7 |
| 11 years | 26,0 | 28,0 | 31,0 | 34,9 | 39,9 | 44,9 | 51,5 |
| 12 years old | 28,2 | 30,7 | 34,4 | 38,8 | 45,1 | 50,6 | 58,7 |
| 13 years old | 30,9 | 33,8 | 38,0 | 43,4 | 50,6 | 56,8 | 66,0 |
| 14 years | 34,3 | 38,0 | 42,8 | 48,8 | 56,6 | 63,4 | 73,2 |
| 15 years | 38,7 | 43,0 | 48,3 | 54,8 | 62,8 | 70,0 | 80,1 |
| 16 years | 44,0 | 48,3 | 54,0 | 61,0 | 69,6 | 76,5 | 84,7 |
| 17 years | 49,3 | 54,6 | 59,8 | 66,3 | 74,0 | 80,1 | 87,8 |
Boy's height, cm
Boy's weight, kg
The main factors that affect the height and weight of boys are:
- good nutrition;
- night sleep of sufficient duration;
- regular sports and physical education;
- genetic predisposition.
You should not try to correct the height and weight of boys with surgery or hormonal drugs - this can seriously affect your health. If these parameters do not correspond to the norms, but at the same time pathologies are not diagnosed, maybe it is worth looking at it from the positive side? A unique child is growing up in your family, which, in addition to physiological characteristics, will certainly show other abilities and talents!
Video: Height and weight of children
Many modern girls follow the figure, try to be fit and slim. To determine the normal ratio of growth and weight parameters, it is necessary to know the norms and adhere to them, regulating body weight with nutrition and regular physical training.
Scientific minds have long invented a formula for overweight or underweight. This is BMI. This abbreviation stands for Body Mass Index. According to this calculation, the main indicators of the human body are estimated.
The ratio of height and weight in a girl is necessary not only for determining beauty. Knowing how this formula works, you can suspect problems with the body, or, conversely, not think about the possible risks.
What should be the ratio of height to weight
The formula is a road sign that shows if life is heading in the right direction. Or it's time to change something.
Table of the ratio of height and weight in girlsThere is an opinion that the optimal weight for a person is the same as in his younger years. But we should not forget that with every year of life, the human body does not get younger. The amount of muscle mass decreases, the body fat increases. And if you take the Quetelet formula (BMI) as the correct criterion for determining weight, then you can be very mistaken.
The correct calculation of this index can be influenced by both the body type and the amount of muscle and body fat in the body.
How to start determining the correct body proportions
The ratio of height and weight among girls in the modern world is very different even from those that were 20-30 years ago. Today, the beauty of a woman's physique is determined by: height, proportions of the upper body and lower limbs. But all numbers are relative.
To determine the parameters of your body, you need to take several measurements:
Also, in addition, measurements are taken of the neck, shoulders, hips, calf muscles, chest. Together, all these indicators determine the proportionality of the physique.
How to measure height correctly
With age-related changes, growth also undergoes changes. Firstly, in the morning, a person's height is always 1-2 cm higher than in the evening. This is due to the fact that the body relaxes and stretches during sleep. Secondly, the height of a person at 50 years old will not be the same as it was 20 years ago. Therefore, there is a need to make new measurements at regular intervals.
To measure your height correctly, you need to take an assistant and a rigid meter. The tape should be left to measure the waist.
In this position, at the top of the head (crown), the assistant needs to put a mark on the wall. Moreover, measurements are carried out strictly parallel to the floor. Measurement of the distance from the top point to the bottom - there is growth. Every woman or girl is different.
To say that someone is more beautiful is impossible. But there are categories of female growth:
- "Thumbelina" - height up to 155 cm;
- below average height - 155-165 cm;
- girls of average height - 165-170 cm;
- above average height - 170-175 cm;
- tall girls - 175-185 cm;
- too tall or tall - 185 and above.
Body types
The main classification of the physique includes three types - this is an asthenic, a normosthenic and a hypersthenic (endomorphic view).
- Asthenic physique
The ratio of height and weight in girls with this type of figure is characterized by general leanness and graceful upper and lower limbs. Usually their height is 167-172 cm. Girls with this type of figure are very light, thin, elegant. They do not have a tendency to gain excess weight.
- Norman girls
A distinctive feature of this type of physique is the proportionality of the figure. These women are usually of medium height and have a very harmonious physique. With age, they can gain 2-3 kg of excess weight.
This is a strong, stocky type of female build. Usually below average height. They are distinguished by a wide chest and broad shoulders. Girls with this physique are usually prone to gaining excess weight.
To determine your body type, you need to know the height, leg length and wrist volume:
- Asthenics- the legs are 7-8 cm longer than ½ of the height. The circumference of the wrist is less than 15 cm.
- Normostenics- legs are 3-5 cm longer than ½ of the height. Wrist circumference 15.5 -18 cm.
- Endomorphs- the legs are a couple of cm longer than ½ of the height. The circumference of the wrist is more than 18 cm.
There are also divisions by figure:
- A - shaped figure - has wide hips compared to narrow shoulders.
- X - shaped type of figure. Shoulders and hips are approximately equal in width. The waist is 20 cm less.
- H - shaped figure. Shoulders, waist and hips are approximately the same size.
- T - shaped figure. "Boyish" type - broad-shouldered with narrow hips.
- O - shaped physique. This type of women is distinguished by the most voluminous part of their figure - the waist.
Quetelet index
In the middle of the 19th century, the statistician and sociologist Adolphe Quetelet created a formula by which one can determine the excess weight of a person. The Quetelet Index (BMI) is a correspondence between human height and weight, which helps to determine the amount of excess or missing weight.
To calculate the body mass index, you need to divide your weight by (height in meters * height in meters). It looks like this - weight kg: (height in m) 2.
Example: 74 kg: (1.76 * 1.76) = 23.88 - the resulting figure is the Quetelet formula or body mass index.
Quetelet Mass Index Degrees
The mass index must be used with caution. When calculating it, the amount of fat in the body of a given person is not taken into account. Therefore, this weight analysis is indicative only.
- Index up to 18.5 - lack of weight. There is no risk of obesity. Women may experience hormonal disorders, miscarriages, hypotension, low hemoglobin levels.
- Index 18.6 - 25 - normal weight. No risk of disease. There is no need to reduce or increase weight. Changes in weight can only be a personal preference.
- Index 25.1 - 30 - extra kg... There is a risk of the gradual occurrence of hypertension, varicose veins, diabetes mellitus.
- Index 30.1 - 35 - 1 degree of obesity. This disease is not only a lot of fat on the human body or a cosmetic defect. Starting with this degree of obesity, the cardiovascular system and cerebral vessels bear a double load. Sugar is not properly absorbed by the body, which leads to diabetes.
- Index 31.1 - 40 - 2 degree of obesity. The need for urgent action is doubled. Osteoarthritis, arthritis, hypertension, strokes, heart attacks are the consequences of this disease.
- Over 40.1 - 3 degree of obesity. The huge possibility of dying from all of the above diseases increases significantly. There is an urgent need to take measures to reduce excess weight.
Volumes 
The height-to-weight ratio or Quetelet index is not an ideal indicator of a beautiful body in girls or lack of health problems.
The measurement of the waist must be added to the BMI. This parameter will be in addition to the Quetelet formula.
- The centimeter tape showed more than 80 cm - there is a small likelihood of developing metabolic diseases.
- Measurements with a centimeter tape showed a waist volume exceeding 87 cm - a critical figure. There is a need to reduce weight due to possible health complications.
Brock's formula
In the 19th century, the French surgeon Paul Brock developed a calculation by which you can determine the optimal weight indicator for a person. This calculation formula includes the need to know your height in cm from which you need to subtract one hundred. The resulting figure will be an indication of the ideal weight. 
But for the correct calculation there is a need to know your body type. So, girls with the same body weight may look different, due to different body types.
- Asthenics - (measured in cm. Height - one hundred) - 1/10 of the result.
- Normostenics - measured in cm. Height - one hundred.
- Endomorphs - (measured in cm. Height - one hundred) +1/10 of the result.
Negler's formula
The calculation uses a certain height and weight. To the ideal 152.4 cm (this figure is considered ideal) - (to the next 2.5 cm), add 0.9 kg of weight. Add 10% of the result to the output figure.
For example: original height 165 cm. 165-152.4 = 12.6: 2.5 = 5.04 * 0.9 = 4.536. The resulting figure must be added to the ideal 45 kg = 49.536. And add 10%. As a result, we get 54.48 kg.
Neger's formula is not suitable for all body types. From a girl with a tall stature, you can make an "anarex".
John McCallum's Formula
The body mass formula was developed by John McCallum, a sports expert and writer. This formula is recognized as the best among athletes. It should be determined by the volume of the wrist. 
McCallum body parameters:
- the volume of the chest is 6.5 * per carpal volume;
- waist volume - measured chest volume * 0.53;
- hip volume - measured chest volume * 0.85;
- thigh (leg) volume - measured chest volume * 0.53;
- neck volume - measured chest volume * 0.37;
- biceps volume - measured chest volume * 0.36;
- leg volume - measured chest volume * 0.34;
- forearm volume - measured chest volume * 0.29.
Lorentz formula
At the beginning of the 20th century, a Dutch physicist calculated the perfect weight for a person. It is based on growth.
This calculation is suitable for people over 20 years old. Growth has no restrictions.
Formula for the fair half:(subtract 100 from the height measured in cm) - (measured height in cm-150) divided by 2.
Example: 175cm = (175-100) - (175-150) / 2 = 75-25 / 2 = 62.5 kg
Breitman's formula
To determine the ideal weight for a particular person using the Breitman formula, it is necessary to use the growth parameter in cm. The calculation is made according to the formula:
The measured growth parameter in cm * by an indicator of 0.7 and subtract 50.
Example: 176 cm * 0.7-50 = 73.2 kg.
The calculation of the perfect weight according to this formula is more suitable for women of a more mature age.
The role of age in the ratio of height and weight
Over time, the human body undergoes changes. The muscle volume decreases, the body fat increases. Due to hormonal age-related changes in women, there is a redistribution, or even excessive accumulation of subcutaneous fat. Therefore, there is a need to compare your weight not with youthful indicators, but taking into account age. 
The famous surgeon Brox made his own BMI calculation, laying it down the number of years and features of the figure.
- The best result for women under 39 years of age. Height measured in cm - factor 110.
- The best female weight 40+. Height, measured in cm - 100.
- For asthenic physique, it is necessary to subtract 10% of the ideal weight.
- For female endomorphs, it is necessary to add 10% of their ideal weight.
Calculation of the ratio of height and weight, based on the type of female figure
Having the perfect physique is the dream of any woman or girl. All people are different and this should be recognized. Every woman is unique, no matter what body proportions she possesses.
Weight and height norm: table for women
| Growth | 19-29 years old | 30-39 years old | 40-50 years old |
| 165 | 58,5 | 61,75 | 66,3 |
| 167 | 60,3 | 63,65 | 68,34 |
| 169 | 62,1 | 65,65 | 70,38 |
| 171 | 63,9 | 67,45 | 72,42 |
| 173 | 65,7 | 69,35 | 74,46 |
| 175 | 67,5 | 71,25 | 76,5 |
The numbers in this table show the average permissible weight of a woman at different ages.
Using a dedicated calculator
On the Internet, different types of online calculators have found their place, which can be used to calculate the optimal body weight according to different formulas. The way to use the online calculator is very simple. You need to know the parameters of your body and enter the data into the calculator windows. 
To find out your values according to the Quetelet formula, you only need to know your body height and weight. The online assistant will make the calculation itself.
Height-to-weight ratio in a teenage girl
The formula will help you find out the child's BMI. Children's calculation of the Quetelet index = child's weight in kg / for height in m 2. For example: a child's height is 1.35, weight is 35 kg = 35 / 1.82 = 19.23. This is the norm for children 12-13 years old.
To determine the BMI of a teenager, you need to do the same calculation as for babies. The Quetelet index for adults is not yet suitable for them, due to the constant growth of the body.
It is necessary to calculate the indicator - percentile. Percentile = teen weight / height. The result obtained must be compared with the values that correspond to the age of the young man.
Indicators:
- The result is 95 or more - the disease is obesity.
- Result 80 - 95 - overweight.
- Result from 6 - 80 - normal weight.
- Less than 6 - lack of weight.
Body mass index during pregnancy
BMI during pregnancy is estimated according to the generally accepted calculations of Quetelet. But this formula has its own characteristics. To apply this calculation, you need to know the number of weeks of pregnancy, weight and height before pregnancy. 
Formula: weight before pregnancy / height squared:
- the result is 19.8 or less - underweight;
- result up to 26 - normal weight;
- anything over 26 is overweight.
During pregnancy, there is a need to monitor your weight. Any changes in the mother's weight can affect the development of the child.
Why you need to know your BMI
The Quetelet index or formula is a relative indicator. But it is necessary to know it, and not even for the beauty of the body. Some of the health is hidden in these numbers. Indicators that exceed the norm should be alarming.
Behind them are such serious diseases as varicose veins, arthrosis, thrombophlebitis, strokes, heart attacks, diabetes. Few people want to have so many problems in their body. Therefore, it becomes necessary to monitor your BMI in order to prevent excess weight with its consequences.
Disadvantages and limitations of using the BMI method
The Quetelet formula has its drawbacks. These include:
- the calculations do not take into account age;
- well-developed muscles can be interpreted as a threat of excess weight or obesity;
- there is no difference between female and male sex.
These are both disadvantages and limitations. If you need in-depth calculations, you should take several different formulas.
How to normalize your body mass index
For girls who want to lose weight or gain pounds, calculating body mass index can be an assistant. You need to know certain rules. They are very similar for both groups.
The body mass index of girls, or in another way the ratio of their height and weight, can be an assistant in solving health problems. And also be a guide in achieving the desired proportions of the figure.
Article formatting: Mila Friedan
BMI video
BMI standards and comorbidities:
