Age norms for height and weight in preschool children. Standards for height and weight. Approximate weight and height gain by month
Every visit to a pediatrician in the first 12 months of a baby’s life ends with a mandatory measurement of height and weight. If these indicators are within the normal range, then we can say that the child is well developed physically. For this purpose, the World Health Organization, or WHO for short, has compiled the age and weight of children that pediatricians use when assessing the health of children.
Factors influencing growth and WHO standards
Scientists from all over the world are actively studying the factors that affect people's height and weight. According to recent studies, scientists have concluded that weight indicators, as well as growth indicators of children under five years of age, depend not only on genetic predisposition, but also on the quality of life, climatic conditions, and type of feeding in the first two years of life. Thus, children who receive artificial formula as their main diet gain significantly more weight than those who are breastfed.
Having analyzed the first WHO tables “height and weight of children under one year old,” compiled more than 20 years ago, scientists noticed that the normal values were overestimated by 16-20%. This is due, first of all, to the fact that in the 1990s, artificial feeding was the most common type of nutrition for children under one year old. Nowadays, more and more mothers prefer to feed their babies naturally. Excessive standards, according to WHO experts, contribute to groundless recommendations from pediatricians on supplementary feeding of infants, which in turn leads to a complete transition to artificial feeding, as well as overfeeding and, as a consequence, obesity. According to WHO, standards for assessing children's height and weight are no longer accurate. Therefore, in 2006, adjustments were made and new tables were created that are excellent for assessing the development of modern children.
Weight and height of children. WHO table (0-12 months)
The WHO table is considered the most “fair” due to the fact that all parameters in it are assessed as “average”, “low” / “high”, “below average” / “above average”. Thanks to this gradation, you can easily determine whether the child meets the standards of physical development according to his age.
| Age (months) | Very low | Short | Below the average | Average | Above average | High |
| Newborn (from 0 to 3 months) | 48-56 | 49-57 | 50-58 | 53-62 | 54-64 | 55-67 |
| From 4 to 6 months. | 58-63 | 59-64 | 61-65 | 65-70 | 67-71 | 68-72 |
| From 7 to 9 months. | 65-68 | 66-69 | 67-70 | 71-74 | 73-75 | 73-77 |
| From 10 to 12 months. | 69-71 | 70-72 | 71-74 | 76-78 | 77-80 | 79-81 |
For a general assessment of growth, it is considered advisable to take into account weight gain. Based on this, the following indicators are considered normal:
- (first three months) - an increase of 3-4 centimeters to the previous height. For example, if a child was born 50 cm, then after three months his height will be about 53 cm.
- From three months to six months: the average increase ranges from 2-3 cm.
- From six months to nine months of age, the child grows another 4-6 cm, adding an average of one to two centimeters per month.
- By the age of one year, the child increases his height by another 3 cm.
It turns out that in 12 months a child increases his height by an average of 20 centimeters.
Weight gain
The normal weight of a newborn baby (immediately after the end of childbirth) ranges from 2500-4500 grams. According to WHO, a baby should gain at least 400 grams every month. Thus, by six months the child doubles its original weight. In subsequent months, the minimum increase should be at least 150 grams. However, when assessing the rate of weight gain, it is necessary to start from the baby’s initial body weight. For example, the increase may be lower than normal, provided that the child was born large (over 4 kg), or vice versa, since low-weight babies gain weight more intensively in subsequent months.
Height and weight of boys
In addition to the factors described above, the combination of which helps determine the norm, it is worth taking into account gender, which influences the weight and height of children. The WHO table can display both average height and weight limits for children of different sexes, as well as specific indicators for boys and girls. It is believed that boys, unlike girls, grow faster and gain weight more rapidly, so their physical development should be assessed using the appropriate table.
| Age | Weight, kg (g) | Height, cm |
| About month | 3.5 (±450) | 50 (±1) |
| 1 month | 4.3 (±640) | 54 (±2) |
| 2 months | 5.2 (±760) | 57 (±2) |
| 3 months | 6.1 (±725) | 61 (±2) |
| 4 months | 6.8 (±745) | 63 (±2) |
| 5 months | 7.6 (±800) | 66 (±1) |
| 6 months | 8.7 (±780) | 67 (±2) |
| 7 months | 8.7 (±110) | 69 (±2) |
| 8 months | 9.4 (±980) | 71 (±2) |
| 9 months | 9.8 (±1.1) | 72 (±2) |
| 10 months | 10.3 (±1.2) | 73 (±2) |
| 11 months | 10.4 (±980) | 74 (±2) |
| 12 months | 10.4 (±1.2) | 75 (±2) |
| 18 months | 11.8 (±1.1) | 81 (±3) |
| 21 months | 12.6 (±1.4) | 84 (±2) |
| 24 months | 13 (±1.2) | 88 (±3) |
| 30 months | 13.9 (±1.1) | 81 (±3) |
| 3 years | 15 (±1.6) | 95 (±3) |
| 4 years | 18 (±2.1) | 102 (±4) |
| 5 years | 20 (±3.02) | 110 (±5) |
| 6 years | 21 (±3.2) | 115 (±5) |
| 8 years | 27.7 (±4.7) | 129 (±5) |
| 9 years | 30.4 (±5.8) | 134 (±6) |
| 10 years | 33.7 (±5.2) | 140 (±5) |
| 11 years | 35.4 (±6.6) | 143 (±5) |
| 12 years | 41 (±7.4) | 150 (±6) |
| 13 years | 45.8 (±8.2) | 156 (±8) |
Girls' height and weight
To describe the physical level of development of girls, there is a separate WHO table “weight, height of girls”. It is believed that girls grow on average until the age of 18, in contrast to boys, whose growth does not stand still until the age of 22. In addition, at the age of 10-12 years, girls grow much faster than boys. The height and weight parameters in the table are average. Therefore, when assessing the development of girls, one should not forget about individual characteristics.
| Age | Weight, kg (g) | Height, cm |
| 0 months | 3.2 (±440) | 49 (±1) |
| 1 month | 4.1 (±544) | 53 (±2) |
| 2 months | 5 (±560) | 56 (±2) |
| 3 months | 60 (±2) | |
| 4 months | 6.5 (±795) | 62 (±2) |
| 5 months | 7.3 (±960) | 63 (±2) |
| 6 months | 7.9 (±925) | 66, (±2) |
| 7 months | 8.2 (±950) | 67 (±2) |
| 8 months | 8.2 (±1.1) | 69 (±2) |
| 9 months | 9.1 (±1.1) | 70 (±2) |
| 10 months | 9.3 (±1.3) | 72 (±2) |
| 11 months | 9.8 (±800) | 73 (±2) |
| 12 months | 10.2 (±1.1) | 74 (±2) |
| 18 months | 11.3 (±1.1) | 80 (±2) |
| 21 months | 12.2 (±1.3) | 83 (±3) |
| 24 months | 12.6 (±1.7) | 86 (±3) |
| 30 months | 13.8 (±1.6) | 91 (±4) |
| 3 years | 14.8 (±1.5) | 97 (±3) |
| 4 years | 16 (±2.3) | 100 (±5) |
| 5 years | 18.4 (±2.4) | 109 (±4) |
| 6 years | 21.3 (±3.1) | 115 (±4) |
| 8 years | 27.4 (±4.9) | 129 (±5) |
| 9 years | 31 (±5.9) | 136 (±6) |
| 10 years | 34.2 (±6.4) | 140 (±6) |
| 11 years | 37.4 (±7.1) | 144 (±7) |
| 12 years | 44 (±7.4) | 152 (±7) |
| 13 years | 48.7 (±9.1) | 156 (±6) |
Boys height and weight chart
It is very important for parents to track weight and the WHO Table and Chart will help loving mothers and fathers understand whether everything is okay with their child. If the table provides specific data that is the norm for a certain age, then the graph helps to clearly see the entire development process.
The graphs below are based on the weight and height parameters of boys (blue graph) and girls (pink graph) from birth to 5 years of age. The scale on the left shows the weight or, depending on the graph, the height of the child. Age is indicated below. The green line, located in the center of the graph and marked with the number 0, is considered an indicator of the norm and corresponds to the “average” rating in the table. The graph lines numbered -2 and -3 are equivalent to the table indicators “below average” and “low”. Consequently, lines 2 and 3 are equated to the parameters “above average” and “high”.
Boys weight chart (up to 5 years old)
Boy growth chart (up to 5 years old)
Girls height and weight chart
For girls, a separate height and weight chart must be used. The graphs below describe the norm for girls under 5 years of age.
Girl's weight chart (up to 5 years old)
Growth chart for girls (up to 5 years old)
As you already understand, parents are required to assess the weight and height of their children. The WHO table in this matter will help determine whether the obtained indicators are normal. However, you should not be upset if you notice that your child’s height or perhaps weight is low or, on the contrary, high. The main thing is that your baby’s weight matches his height, but the indicators should not be critically low or high.
Her baby while he is still in her womb. A visit to the ultrasound room for expectant parents always ends with receiving a protocol that indicates the parameters of the baby’s development for a given period of time. One of the key indicators is the height of boys or girls, it, as well as other values obtained using ultrasound. Individual measurements are compared with averaged data. It is this method (comparison with approximate norms) that will be used as an assessment of the baby’s developmental state during pregnancy and subsequent growing up.
In this article we will look at how future men should develop. The table of height and weight of boys will clearly demonstrate which indicators are considered normal for one or another. We will also briefly talk about when you need to pay attention to what is too small or large
What is the norm?
In our country, certain indicators have recently been revised. The Ministry of Health decided to abandon outdated Soviet developments and arm ourselves with modern data that corresponds to global trends.
It is worth noting that WHO has approved standards for each individual region of the planet; they are based on anthropological and genetic studies of the population living in a particular territory. People of different nationalities, existing in climatic conditions different from each other, cannot look entirely the same, especially since the height of boys and girls, their weight and rates of development also differ.
When comparing your child with the parameters of other babies, you should pay attention to many factors (genetics, health, lifestyle, physical activity, nutrition).
Age/height/weight, years | low - below average | high - above average |
|
newborn | from 46.5 cm to 49.8 cm from 2.7 kg to 3.1 kg | from 49.8 cm to 52.3 cm from 3.1 kg to 3.7 kg | from 52.3 cm to 55 cm from 3.7 kg to 4.2 kg |
from 55.3 cm to 58.1 cm from 4.5 kg to 5.3 kg | from 58.1 cm to 60.9 cm from 5.3 kg to 6.4 kg | from 60.9 cm to 63.8 cm from 6.4 kg to 7.3 kg |
|
from 61.7 cm to 64.8 cm from 6.1 kg to 7.1 kg | from 64.8 cm to 67.7 cm from 7.1 kg to 8.4 kg | from 67.7 cm to 71.2 cm from 8.4 kg to 9.4 kg |
|
9 months | from 67.3 cm to 69.8 cm from 7.5 kg to 8.4 kg | from 69.8 cm to 73.2 cm from 8.4 kg to 9.8 kg | from 73.2 cm to 78.8 cm from 9.8 kg to 11.0 kg |
from 71.2 cm to 74.0 cm from 8.5 kg to 9.4 kg | from 74.0 cm to 77.3 cm from 9.4 kg to 10.9 kg | from 77.3 cm to 81.7 cm from 10.9 kg to 12.1 kg |
|
from 81.3 cm - 84.8 cm from 10.67 kg to 11.7 kg | from 84.5 cm to 89.0 cm from 11.7 kg to 13.5 kg | from 89.0 cm to 94.0 cm from 13.5 kg to 15.00 kg |
|
from 89.0 cm to 92.3 cm from 12.1 kg to 13.8 kg | from 92.3 cm to 99.8 cm from 13.8 kg to 16.00 kg | from 99.8 cm to 104.5 cm from 16.00 kg to 17.7 kg |
|
from 93.2 cm to 98.3 cm from 13.4 kg to 15.1 kg | from 98.3 cm to 105.5 cm from 15.1 kg to 17.8 kg | from 105.5 cm to 110.6 cm from 17.8 kg to 20.3 kg |
|
from 98.9 cm to 104.4 cm from 14.8 kg to 16.8 kg | from 104.4 cm to 112.0 cm from 16.8 kg to 20.00 kg | from 112.0 cm to 117.0 cm from 20.0 kg to 23.4 kg |
|
from 105.0 cm to 110.9 cm from 16.3 kg to 18.8 kg | from 110.9 cm to 118.7 cm from 18.8 kg to 22.6 kg | from 118.7 cm to 123.8 cm from 22.6 kg to 26.7 kg |
|
from 111.0 cm to 116.8 cm from 18.00kg to 21.00kg | from 116.8 cm to 125.0 cm from 21.0 kg to 25.4 kg | from 125.0 cm to 130.6 cm from 25.4 kg to 30.8 kg |
|
from 116.3 cm to 122.1 cm from 20.0 kg to 23.3 kg | from 122.1 cm to 130.8 cm from 23.3 kg to 28.3 kg | from 130.8 cm to 137.0 cm from 28.3 kg to 35.5 kg |
|
from 121.5 cm to 125.6 cm from 21.9 kg to 25.6 kg | from 125.6 cm to 136.3 cm from 25.6 kg to 31.5 kg | from 136.3 cm to 143.0 cm from 31.5 kg to 39.1 kg |
|
from 126.3 cm to 133.0 cm from 23.9 kg to 28.2 kg | from 133.0 cm to 142.0 cm from 28.2 kg to 35.1 kg | from 142.0 cm to 149.2 cm from 35.1 kg to 44.7 kg |
|
from 136.2 cm to 143.6 cm from 28.2 kg to 34.4 kg | from 143.6 cm to 154.5 cm from 34.4 kg to 45.1 kg | from 154.5 cm to 163.5 cm from 45.1 kg to 58.7 kg |
|
from 148.3 cm to 156.2 cm from 34.3 kg to 42.8 kg | from 156.2 cm to 167.7 cm from 42.8 kg to 56.6 kg | from 167.7 cm to 176.7 cm from 56.6 kg to 73.2 kg |
|
from 158.8 cm to 166.8 cm from 44.0 kg to 54.0 kg | from 166.8 cm to 177.8 cm from 54.0 kg to 69.6 kg | from 177.8 cm to 186.3 cm from 69.6 kg to 84.7 kg |
As you can see, the height and weight of boys given in the table can vary significantly. In any case, each child develops purely individually, and if there is a deficiency in certain parameters at one age, after six months or a year the child can make a significant leap in physiological development or, conversely, stop the pace of its growth.
Is there no way to fight genes?
A person’s appearance is determined at the genetic level even at the moment when the egg meets the sperm and fertilization occurs. It is then that it becomes clear what gender the baby will be, what kind of eyes he will have, skin color, build. However, this does not mean that what was originally laid down by nature cannot be adjusted or will remain unchanged throughout life.
Yes, eyes and hair, skin tone can be changed through third-party intervention, but blue eyes will remain that way until old age. Boys' height, weight and build are directly influenced by their lifestyle and the conditions in which they grow and develop. Short parents may well have a son above average height, especially since one cannot ignore the fact that genes are passed on through several generations, and no child can be an exact copy of their biological mother and father. It can be unequivocally stated that it is easier for a person to worsen his appearance and health than to improve it.
When is deviation from the norm bad?
If parents notice that their child is significantly behind their peers, or vice versa (boys’ height, weight and general development often exceed the average), this is a reason to seek advice from a doctor.
Before looking for geneticists and the best luminaries of world medicine, it is enough to make an appointment with a family doctor or local pediatrician. The medical record of any baby whose health status is monitored by the parents contains data on the dynamics of its development; on their basis, a qualified doctor can make certain conclusions regarding the child’s growth rate.
Problems may occur in the following cases:
- hormonal surges due to puberty;
- disturbances in the level of “growth hormone”;
- developmental delays;
- difficulties associated with abnormal intrauterine development;
- genetic disorders.
Now you know what height a boy should be at a certain age.
When a newborn is born, doctors immediately record the main indicators of its physical development, one of which is the child’s growth by month. In the first year of life, the baby increases it monthly, so the World Health Organization has established the optimal values for a child’s height increase by month.
Why monitor your baby's growth rate?
A pediatrician needs to regularly evaluate such parameters of physical development as, as well as chest and head circumference.
He compares the data obtained with the values in special tables and makes a conclusion: whether the results are within the normal range or not. Changes in these values indicate whether the baby is developing harmoniously.
What worries doctors most is deviations from the average in head size. However, there are reasons why you should not worry prematurely.
Your local doctor should measure your baby's head circumference, weight and height every month. So, if a baby was born large and ahead of his peers in terms of indicators, the size of the head may exceed the norm.
The same goes for premature babies. Large deviations are observed in the case of severe malformations, such as.
All changes should increase evenly. Too fast or slow a pace, as well as an uneven increase in any value, is an additional reason to consult a doctor.
How does a baby grow up to 1 year old?
A newborn most often has a body length of 45 to 55 cm.
Weight gain is:
- in the first 3 months of life – by 3 cm monthly;
- from 3 to 6 months the baby grows by 2-2.5 cm every month;
- from 6 to 9 – by 1.5-2 cm;
- from 9 to 12, the baby increases the indicator by 1 cm per month.
Watching how much your child grows every month is very exciting. On average, in the first year of life, the baby grows to 70-80 cm.
There are special tables that help calculate this parameter according to the age of the baby.
This chart contains generally accepted averages.
There are also tables that divide growth levels into “low”, “medium” and “high”. The doctor is based on this data and can judge the deviation from the norm.
Below are tables of child growth by month up to a year.
Growth norms for children by month up to one year
Baby's growth at 1 month
Baby growth at 2 months
Baby growth at 3 months
Child growth at 4 months
Baby's growth at 5 months
Baby's growth at 6 months
Baby's growth at 7 months
Baby's growth at 8 months
Baby's growth at 9 months
Child growth at 10 months
Child growth at 11 months
Child growth at 1 year
You can view the growth chart for children under 12 years of age
The baby grows most rapidly in the first 3 months of his life. and then the growth rates decrease, and by the end of the first year the baby grows more slowly.
You shouldn’t rely too much on the table’s indicators. The values are indicative, therefore small deviations from the average values do not represent signs of pathology.
How to measure a baby's body length
To observe the dynamics of the increase in this parameter in the baby, it is not necessary to wait for the next appointment with the pediatrician. Parents can determine it themselves at home. To do this, you need to have a soft measuring tape or a long meter ruler:
- The baby is placed on the crib in a supine position so that the back of his head rests against a hard surface.
- The baby's legs are stretched in a straight direction so that the feet are at a 90-degree angle, and the parents mark the place where the baby's heels end.
- Then the baby is raised and the length from the head of the bed to the mark is measured.
Pletneva I.N., pharmacist-pediatrician, “Health of Mothers and Babies” clinic, Saratov
When measuring a child's growth by month, sometimes erroneous results occur, since this is a subjective study.
To see that the baby is growing, just watch the size of the clothes the baby wears.
5 factors affecting the growth rate of a baby
- proper balanced nutrition: natural or artificial feeding, its frequency;
- the position of the baby in the family, its importance as a family member;
- emotional status of the baby and.
Fedoseeva S.N., pediatrician, doctor of the highest category, City Children's Hospital No. 3, Cheboksary.
In order for the baby to grow evenly according to normal values, it is desirable that the baby is breastfed.
Daily walks in the fresh air, good sleep and regular checks of indicators with a local pediatrician will be useful.
- Somatotropic hormone. This hormone is responsible for the growth of the human body. It helps accelerate the growth of tubular bones of the limbs. 70% of somatotropin is produced at night. Therefore, when a little person goes to bed late and often wakes up, the production of the hormone is disrupted. Its maximum level is observed during puberty.
- The absence of congenital anomalies in the baby that impede the normal development of the baby.
You can find out the factors influencing weight gain in newborns
What to do if the indicators differ from the norm, should you worry?
Only an experienced pediatrician assesses the degree of deviation of an infant from developmental norms. He will monitor them over time and compare past and current results using a special technique.
If the doctor suspects certain signs of diseases affecting these parameters, he will refer you for consultation to specialized specialists.
The level of development of a child is determined by measurements of height, weight and head circumference in combination Parents should only worry if the child’s growth from month to year deviates greatly from the average, since such a violation can lead to diseases of the musculoskeletal and cardiovascular systems.
That is why any significant deviation should not be ignored by both parents and pediatricians. He needs to find the cause of the disorder and prescribe appropriate therapy in order to preserve the baby’s health in the future.
There are certain factors that parents can influence:
Factors contributing to children's growth
- . Up to six months, the baby should be fed with mother's milk, and then complementary foods should be introduced. The mother needs to eat properly and balanced so that the baby receives the necessary vitamins and microelements with milk.
- Regular feeding.
- Walks in the open air.
- Good dream. The baby should wake up rested and cheerful.
Factors slowing down the process
- Bad ecology.
- Artificial feeding: even the best formulas cannot replace breast milk.
- Inadequate care of the baby: malnutrition, mother smoking, lack of supervision by a pediatrician.
Gromova S.M., pediatric neurologist, doctor of the highest category, Department of Pediatrics, St. Petersburg State Medical University named after. Academician Pavlov, St. Petersburg
If the baby is growing rapidly, this may be due to the fact that both parents are tall. If he is active, calm and has a good appetite, don’t worry, you need to watch this indicator over time.
To compare all the main parameters of your baby’s growth, we suggest you study the table of the child’s weight and head circumference by month to one year.
Age, months | Girls | 7,3 | 42,2 | 8,0 | 43,3 | |
| 7 | 7,7 | 42,8 | 8,3 | 44.0 | ||
| 8 | 8,0 | 43,4 | 8,7 | 44,5 | ||
| 9 | 8,3 | 43,8 | 9,0 | 45,0 | ||
| 10 | 8,5 | 44,2 | 9,2 | 45,4 | ||
| 11 | 8,8 | 44,6 | 9,4 | 45,8 | ||
| 12 | 9,0 | 44,9 | 9,7 | 46,1 | ||
Immediately after the birth of the baby, the doctor informs the happy parents such parameters as the weight and height of the child. In the future, mom and dad will have to carefully monitor the baby's weight gain and height. But why is this so important and what do these parameters depend on?
Child height and weight indicators
There are several factors that influence the rate of weight gain and growth. These are heredity, nutrition and its quality, as well as living conditions. If we talk about height, then genes have the greatest influence - when both parents are tall, then their child will also grow faster. But weight is affected by the quality and quantity of food. If you follow the rules and provide high-quality complementary foods, then there will be no problems with weight gain.
Living conditions are of particular importance. This means that you need to ensure an optimal lifestyle, walk with your child in the fresh air, especially in the sun, as it promotes the production of vitamin D. You need to monitor the health and condition of the baby, then he will grow within normal limits.
Tables: height and weight norms according to WHO
Below you will find detailed information about the average performance of newborn boys and girls up to one year. The only thing that needs to be noted is that the parameters are approximate, since each child’s body is individual.
| Age, months | Weight, kg | Weight gain, g | Height, cm | Height gain, cm |
| 0 | 3,1-3,4 | – | 50-51 | – |
| 1 | 3,7-4,1 | 600 | 54-55 | 3 |
| 2 | 4,5-4,9 | 800 | 55-59 | 3 |
| 3 | 5,2-5,6 | 800 | 60-62 | 2,5 |
| 4 | 5,9-6,3 | 750 | 62-65 | 2,5 |
| 5 | 6,5-6,8 | 700 | 64-68 | 2 |
| 6 | 7,1-7,4 | 650 | 66-70 | 2 |
| 7 | 7,6-8,1 | 600 | 68-72 | 2 |
| 8 | 8,1-8,5 | 550 | 69-74 | 2 |
| 9 | 8,6-9,0 | 500 | 70-75 | 1,5 |
| 10 | 9,1-9,5 | 450 | 71-76 | 1,5 |
| 11 | 9,5-10,0 | 400 | 72-78 | 1,5 |
| 12 | 10,0-10,8 | 350 | 74-80 | 1,5 |
Approximate weight and height gain by month:
As can be seen from the table, in the first year of their life, babies gain approximately seven kilograms of weight and grow up to thirty centimeters. The increase in height and weight is quite active.
Let's take a closer look at the increase by month:
- The first month from birth is characterized by an average increase of 600 grams and from two and a half to three centimeters. The head circumference becomes more rounded, on average this figure increases by one and a half centimeters.
- The second month of life will bring a weight gain of about 700-800 g, and about 3 cm in height. The head circumference increases again - about one and a half centimeters.
- The third is distinguished by an increase of 800 and two and a half centimeters, the head circumference increases again - by one and a half centimeters.
- The fourth – up to 750 grams and 2.5 cm.
- Fifth - plus another seven hundred grams and two and a half centimeters in height.
- Six months – another six hundred grams and two centimeters. Pay attention to the ratio of the width of the shoulders to the length of the baby’s entire body; normally it is 1:4. The head circumference is necessarily less than the chest circumference.
- The seventh month is about 600 g, and two centimeters of growth.
- Eighth - on average 550 grams of increase and 2 cm in height. As you can see, the weight gain is gradually declining.
- Ninth – the baby is another 500 g heavier and 2 cm taller.
- The tenth child is 450 grams heavier and one and a half to two centimeters taller.
- Eleventh - plus four hundred grams and one and a half centimeters.
- A year is another plus three hundred and fifty grams and one and a half centimeters.
WHO height and weight chart for girls under 1 year of age
The rate of development of newborn boys and girls is slightly different. We suggest you familiarize yourself with how much girls gain in weight and height. Remember, these are approximate figures.
Average normal value for baby girls:
| Age, months | Weight, kg | Height, cm |
| 0 | 2,8-3,7 | 47,3-51 |
| 1 | 3,6-4,8 | 51,7-55,6 |
| 2 | 4,5-5,8 | 55-59,1 |
| 3 | 5,2-6,6 | 57,7-61,9 |
| 4 | 5,7-7,3 | 59,9-64,3 |
| 5 | 6,1-7,8 | 61,8-66,2 |
| 6 | 6,5-8,2 | 63,5-68 |
| 7 | 6,8-8,6 | 65-69,6 |
| 8 | 7,0-9,0 | 66,4-71,1 |
| 9 | 7,3-9,3 | 67,7-72,6 |
| 10 | 7,5-9,6 | 69-73,9 |
| 11 | 7,7-9,9 | 70,3-75,3 |
| 12 | 7,9-10,1 | 71,4-76,6 |
Usually, at the end of the year, babies become longer, up to 25 cm, and heavier, up to six kilograms.
WHO table: height and weight for boys under 1 year
It can be seen that the indicators differ from those of girls, but not by much. Check out the average below.
Average normal value for male infants:
| Age, months | Weight, kg | Height, cm |
| 0 | 2,9-3,9 | 48-51,8 |
| 1 | 3,9-5,1 | 52,8-56,7 |
| 2 | 4,9-6,3 | 56,4-60,4 |
| 3 | 5,7-7,2 | 59,4-63,5 |
| 4 | 6,2-7,8 | 61,8-66 |
| 5 | 6,7-8,4 | 63,8-68 |
| 6 | 7,1-8,8 | 65,5-69,8 |
| 7 | 7,4-9,2 | 67-71,3 |
| 8 | 7,7-9,6 | 68,4-72,8 |
| 9 | 8-9,9 | 69,7-74,2 |
| 10 | 8,2-10,2 | 71-75,6 |
| 11 | 8,4-10,5 | 72,2-76,9 |
| 12 | 8,6-10,8 | 73,4-78,1 |
Boys become approximately 25-26 centimeters taller and seven kilograms heavier.
Height and weight chart for girls from 1 to 10 years old
The height and weight of both male and female infants slows down after reaching the age of one year, so these parameters are then measured by year.
Let's look at the weight of babies by year:
| Age in years | Short | Below the average | Average | Above average | High | Very tall |
| 1 | 7 | 7,9 | 8,9 | 10,1 | 11,5 | 13,1 |
| 2 | 9 | 10,2 | 11,5 | 13 | 14,8 | 17 |
| 3 | 10,8 | 12,2 | 13,9 | 15,8 | 18,1 | 20,9 |
| 4 | 12,3 | 14 | 16,1 | 18,5 | 21,5 | 25,2 |
| 5 | 13,7 | 15,8 | 18,2 | 21,2 | 24,9 | 29,5 |
| 6 | 15,3 | 17,5 | 20,2 | 23,5 | 27,8 | 33,4 |
| 7 | 16,8 | 19,3 | 22,4 | 26,3 | 31,4 | 38,3 |
| 8 | 18,6 | 21,4 | 25 | 29,7 | 35,8 | 44,1 |
| 9 | 20,8 | 24 | 28,2 | 33,6 | 41 | 51,1 |
| 10 | 23,3 | 27 | 31,9 | 38,2 | 46,9 | 59,2 |
As you can see, there are indicators from low (below normal) to too high (above normal). For example, it is normal for a ten-year-old girl to weigh almost 32 kg, but there is a problem if the reading on the scale exceeds 46 kg.
There is also a table indicating the height of girls:
| Age in years | Short | Below the average | Average | Above average | High | Very tall |
| 1 | 68,9 | 71,4 | 74 | 76,6 | 79,2 | 81,7 |
| 2 | 80 | 83,2 | 86,4 | 89,6 | 92,9 | 96,1 |
| 3 | 87,4 | 91,2 | 95,1 | 98,9 | 102,7 | 106 |
| 4 | 94,1 | 98,4 | 109,4 | 107 | 111,3 | 115,7 |
| 5 | 99,9 | 104,7 | 102,7 | 114,2 | 118,9 | 123,7 |
| 6 | 104,9 | 110 | 115,1 | 120,2 | 105,4 | 130,5 |
| 7 | 109,9 | 115,3 | 120,8 | 126,3 | 131,7 | 137,2 |
| 8 | 115 | 120,8 | 126,6 | 132,4 | 138,2 | 143,9 |
| 9 | 120,3 | 126,4 | 132,5 | 138,6 | 144,7 | 150,8 |
| 10 | 125,8 | 132,2 | 138,6 | 145 | 151,4 | 157,8 |
It can be seen that the normal height of a ten-year-old girl is about 139 centimeters, and the highest figure is when the height is above 157. But this parameter is largely influenced by genetics. If mom and dad or one of the parents is tall, or, conversely, short, then the child will be the same. Although it is not impossible for short parents to grow up to have tall children.
Height and weight chart for boys from 1 to 10 years old
So far, boys' figures are not very different from girls' weight and height. Over time, the difference will increase.
Let's look at the weight of guys from one to ten years old:
| Age in years | Short | Below the average | Average | Above average | High | Very tall |
| 1 | 7,7 | 8,6 | 9,6 | 10,8 | 12 | 13,3 |
| 2 | 9,7 | 10,8 | 12,2 | 13,6 | 15,3 | 17,1 |
| 3 | 11,3 | 12,7 | 14,3 | 16,2 | 18,3 | 20,7 |
| 4 | 12,7 | 14,4 | 16,3 | 18,6 | 21,2 | 24,2 |
| 5 | 14,1 | 16 | 18,3 | 21 | 24,2 | 27,9 |
| 6 | 15,9 | 18 | 20,5 | 23,5 | 27,1 | 31,5 |
| 7 | 17,7 | 20 | 22,9 | 26,4 | 30,7 | 36,1 |
| 8 | 19,5 | 22,1 | 25,4 | 29,5 | 34,7 | 41,5 |
| 9 | 21,3 | 24,3 | 28,1 | 33 | 39,4 | 48,2 |
| 10 | 23,2 | 26,7 | 31,2 | 37 | 45 | 56,4 |
The growth chart for boys from one year to their first anniversary – ten years – is also interesting:
| Age in years | Short | Below the average | Average | Above average | High | Very tall |
| 1 | 71 | 73,4 | 75,7 | 78,1 | 80,5 | 82,9 |
| 2 | 81,7 | 84,8 | 87,8 | 90,9 | 93,9 | 97 |
| 3 | 88,7 | 92,4 | 96,1 | 99,8 | 10,35 | 107,2 |
| 4 | 94,9 | 99,1 | 103,3 | 107,5 | 11,7 | 115,9 |
| 5 | 100,7 | 105,3 | 110 | 114,6 | 119,2 | 123,9 |
| 6 | 106,1 | 111 | 116 | 120,9 | 125,8 | 130,7 |
| 7 | 11,2 | 116,4 | 121,7 | 127 | 132,3 | 137,6 |
| 8 | 116 | 121,6 | 127,3 | 132,9 | 138,6 | 144,2 |
| 9 | 120,5 | 126,6 | 132,6 | 138,6 | 144,6 | 150,6 |
| 10 | 125 | 131,4 | 137,8 | 144,2 | 150,5 | 156,9 |
It is advisable not to measure too often at this stage of life, it is of no benefit. If it is still desirable to monitor your weight in order to prevent problems with obesity, then it makes sense to measure height once every three months until two or three years, and once a year in subsequent years.
Height and weight chart for teenage girls
Teenagers no longer require frequent measurements; it is enough to take them once a year. However, you can control your weight more often if you observe a clear deficiency or excess of this indicator.
The weight norm for girls under 17 years of age is indicated in this table:
| Age | Very low | Short | Below the average | Average | Above average | High | Very tall |
| 11 | <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 | <27,8 | 27,8-31,8 | 31,8-36,0 | 36-45,4 | 45,4-51,8 | 51,8-63,4 | >63,4 |
| 13 | <32 | 32-38,7 | 38,7-43 | 43-52,5 | 52,5-59 | 59-69 | >69 |
| 14 | <37,6 | 37,6-43,8 | 43,8-48,2 | 48,2-58 | 58-64 | 64-72,2 | >72,2 |
| 15 | <42 | 42-46,8 | 46,8-50,6 | 50,6-60,4 | 60,4-66,5 | 66,5-74,9 | >74,9 |
| 16 | <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 | <46,2 | 46,2-49,2 | 49,2-52,9 | 52,9-61,9 | 61,9-68 | 68-76 | >76 |
Table of growth indicators for adolescent girls:
| Age | Very low | Short | Below the average | Average | Above average | High | Very tall |
| 11 | <131,8 | 131,8-136,2 | 136,2-140,2 | 140,2-148,8 | 148,8-153,2 | 153,2-157,7 | >157,7 |
| 12 | <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 | <143 | 143-148,3 | 148,3-151,8 | 151,8-159,8 | 159,8-163,7 | 163,7-168 | >168 |
| 14 | <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 | <150,7 | 150,7-154,4 | 154,4-157,2 | 157,2-166 | 166-169,2 | 169,2-173,4 | >173-4 |
| 16 | <151,6 | 151,6-155,2 | 155,2-158 | 158-166,8 | 166,8-170,2 | 170,2-173,8 | >173,8 |
| 17 | <152,2 | 152,2-155,8 | 155,8-158,6 | 158,6-169,2 | 169,2-170,4 | 170,4-174,2 | >174,2 |
It is worth remembering that both weight and height can be inherited, so these figures are only approximate.
Height and weight chart for teenage boys
Surprisingly, from ten to fourteen years old, girls outstrip boys in height. This is due to the fact that hormonal changes in the body have not yet begun in boys. But upon reaching the age of fourteen, they begin to grow more actively, completely overtaking girls.
The weight of boys under 17 years old is indicated in the table:
| Age | Very low | Short | Below the average | Average | Above average | High | Very tall |
| 11 | <26 | 26-28 | 28-31 | 31-39,9 | 39,9-44,9 | 44,9-51,5 | >51,5 |
| 12 | <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 | <30,9 | 30,9-33,8 | 33,8-38,0 | 38,0-50,6 | 50,6-56,8 | 56,8-66 | >66 |
| 14 | <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 | <38,7 | 38,7-43 | 43-48,3 | 48,3-62,8 | 62,8-70 | 70-80,1 | >80,1 |
| 16 | <44 | 44-48,3 | 48,3-54 | 54-69,6 | 69,6-76,5 | 76,5-84,7 | >84,7 |
| 84,717 | <49,3 | 49,3-54,6 | 54,6-59,8 | 59,8-74 | 74-80,1 | 80,1-87,8 | >87,8 |
Height chart for boys under 17 years old:
| Age | Very low | Short | Below the average | Average | Above average | High | Very tall |
| 11 | <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 | <136,2 | 136,2-140 | 140-143,6 | 143,6-154,5 | 154,5-159,5 | 159,5-163,5 | >163,5 |
| 13 | <141,8 | 141,8-145,7 | 145,7-149,8 | 149,8-160,6 | 160,6-166 | 166-170,7 | >170,7 |
| 14 | <148,3 | 148,3-152,3 | 152,3-156,2 | 156,2-167,7 | 167,7-172 | 172-176,7 | >176,7 |
| 15 | <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 | <158,8 | 158,8-163,2 | 163,2-166,8 | 166,8-177,8 | 177,8-182 | 182-186,3 | >186,3 |
| 17 | <162,8 | 162,8-166,6 | 166,6-171,6 | 171,6-181,6 | 181,6-196 | 196-188,5 | >188,5 |
If there is a genetic predisposition to tall height, that is, if dad is tall, then it is normal to be 180 centimeters tall at the age of fourteen. In this case, look at the maximum, not the average.
Features of height and weight gain in premature infants
In case of premature birth, the baby will gain weight differently. Everything will depend on the so-called gestational age - the week when the baby was born. Typically, the rate of weight gain and growth is different for each case.
Let's find out how premature babies gain weight before the first half of the year:
- If the baby was born weighing up to a kilogram, then he will gain approximately 600 g.
- If from a kilogram to one and a half - about 740-750.
- From one and a half to two and a half kilograms - approximately 870.
And the second half of the year:
- If the birth weight was up to 1 kg, then the child will gain approximately 800 g.
- Larger newborns – 600 g.
During the first year of life, premature babies grow from 25 to 36 centimeters. Already in the second or third year of life they catch up with their peers.
Concomitant diseases and physical development
If a newborn suffers from any disease, then he will gain more slowly in height and weight. Opposite cases are also possible - when, due to illness, a child gains more height than normal.
There are several common diseases:
- Cardiovascular - congenital heart disease and circulatory disorders cause the heart to not work well enough. As a result, the organs do not receive the necessary nutrients, physical development is delayed and a lack of weight and height occurs.
- Bronchopulmonary is bronchopulmonary dysplasia (BPD), a malformation of the trachea, bronchi, and lungs. They have a negative effect on blood circulation, which means that nutrients and oxygen reach the organs in small quantities, which delays the baby’s development.
- Diseases of the gastrointestinal tract - problems with the intestines, esophagus, liver, bile ducts. They can only be resolved surgically in the early stages after birth. They also negatively affect height and weight gain.
- Diseases of the endocrine system - hypothyroidism from birth causes too much weight gain due to the accumulation of excess fluid in the body and the occurrence of edema of the subcutaneous fat.
In order not to rack your brains over whether your child is growing normally or whether he has any diseases, visit your pediatrician every month. A professional will have time to notice any deviations from the norm.
The influence of the type of feeding on the weight gain of the newborn
Previously, it was believed that only one type of feeding influenced weight gain - artificial feeding (feeding infant formula). But now there are cases where a mother overfeeds her baby with breast milk.
The way you feed your baby affects weight gain and growth rate
In both types of feeding, the child may gain weight too rapidly, while growing tall like a normal child. If your child grows one and a half centimeters longer every month up to a year, but at the same time becomes heavier by more than a kilogram, you are probably overfeeding him.
Moderation is important - excess weight causes problems such as delayed motor development and skills. It is more difficult for the baby to roll over, the skill of raising his head is poorly developed, etc. All this is hampered by excess body weight.
A newborn weighs little - is there any reason to worry?
It is body weight that determines the ability to adapt to the outside world. If the toddler was born with a weight within the normal range, then development will occur without problems or delays. If the baby is premature, then his body weight will lag behind the body weight of his peers, although over time he will catch up with them. But what to do with a child who is low weight so that adaptation to the outside world occurs without problems?
- Stay warm. Children with low weight have a very thin layer of subcutaneous fat. This prevents them from retaining heat. Monitor your baby's temperature to prevent hypothermia. Measure the temperature every six hours - below 36.5, which means you need to warm it up. It is correct not to cover it with a blanket, but to ensure skin-to-skin contact - when the mother places the baby on her chest.
- Feed by the hour. This is necessary, otherwise the baby’s blood glucose will drop, and he will sleep poorly and feel worse. The first days - sixty milliliters of milk per day, then plus 20 ml of milk every day. You need to stop when you reach 200 ml per kg. Meals should be frequent - 8-10 times.
- Massage for appetite – 2.5 kg, and doctors approve of massage, some procedures need to be carried out for general strengthening. Massage helps you gain weight as it improves your appetite. It is carried out only after meals - an hour later. It is advisable to use the services of a professional children's massage therapist, or parents can master the technique themselves. Having lubricated your hands with baby cream, you need to gently massage the child’s muscles from top to bottom - from the neck, then the back, buttocks, legs, then massage the arms and chest.
In conclusion, we can say that if experts have ruled out the possibility of congenital diseases, and the baby weighs less only because of prematurity, then there is no particular reason to worry. Over time, he will catch up with his peers in development. To make this happen, follow the recommendations - do not give the baby the opportunity to become hypothermic, feed him carefully and massage him when the pediatrician allows.
Height and weight are measured in a child almost immediately after birth, in the fifth minute from the moment of birth. These indicators are of primary importance for assessing the baby’s condition throughout the first year of life. Using the treasured numbers, doctors judge whether the baby is healthy and whether he is developing normally.
Average weights for children from 0 to 12 months
Normal weight indicators in infants under one year of age have a significant relationship with many factors. For example, this is the chosen method of feeding and further feeding the baby, the lifestyle of the parents, and even the geographical place of residence of the mother and baby. But despite all of the above, the medical community has developed a table with parameters as an example of the norm for most children under 12 months.
Boys weight chart
| Child's age | Boys | |
|---|---|---|
| Body mass | ||
| Average | Normal range | |
| 0 months | 3.5 kg | 3 – 4 kg |
| 1 month | 4.3 kg | 3.6 – 5 kg |
| 2 months | 5.3 kg | 4.5 – 6 kg |
| 3 months | 6.2 kg | 5.5 – 6.9 kg |
| 4 months | 6.9 kg | 6.1 – 7.7 kg |
| 5 months | 7.8 kg | 7 – 8.4 kg |
| 6 months | 8.7 kg | 7.9 – 8.9 kg |
| 7 months | 8.9 kg | 7.8 – 10.0 kg |
| 8 months | 9.3 kg | 8.2 – 10.4 kg |
| 9 months | 9.8 kg | 8,7 – 11,05 |
| 10 months | 10.3 kg | 9.2 – 11.5 kg |
| 11 months | 10.4 kg | 9.3 – 11.5 kg |
| 12 months | 10.8 kg | 9.4 – 11.9 kg |
Girls weight table
| Child's age | Girls | |
|---|---|---|
| Body mass | ||
| Average | Normal range | |
| 0 months | 3.3 kg | 2.8 – 3.8 kg |
| 1 month | 4.1 kg | 3.5 – 4.6 kg |
| 2 months | 5.0 kg | 4.3 – 5.5 kg |
| 3 months | 5.9 kg | 5.3 – 6.4 kg |
| 4 months | 6.5 kg | 5.8 – 7.1 kg |
| 5 months | 7.2 kg | 6.2 – 8.0 kg |
| 6 months | 7.9 kg | 7.0 – 8.8 kg |
| 7 months | 8.1 kg | 7.2 – 9.1 kg |
| 8 months | 8.3 kg | 7.2 – 9.4 kg |
| 9 months | 9.0 kg | 8,1 – 10,0 |
| 10 months | 9.5 kg | 8.2 – 10.8 kg |
| 11 months | 9.8 kg | 8.9 – 11.0 kg |
| 12 months | 10.1 kg | 9.0 – 11.3 kg |
The growth of a baby under one year of age increases dynamically, taking into account the constitutional characteristics, genetics, nutrition and general health of the baby. A slight deviation from the average parameters is not a cause for concern. If growth rates are far outside the acceptable range, this is an alarming sign that requires consultation with a doctor.
Boys height chart
| Child's age | Boys | |
|---|---|---|
| Height | ||
| Average | Normal range | |
| 0 months | 50.5 cm | 48 – 53 cm |
| 1 month | 54.2 cm | 53 – 57 cm |
| 2 months | 57.6 cm | 55 – 60 cm |
| 3 months | 61.4 cm | 59 – 65 cm |
| 4 months | 63.7 cm | 62 – 66 cm |
| 5 months | 66.9 cm | 64 – 69 cm |
| 6 months | 67.8 cm | 66 – 71 cm |
| 7 months | 69.7 cm | 68 – 72 cm |
| 8 months | 71.3 cm | 69 – 74 cm |
| 9 months | 72.7 cm | 71 – 76 cm |
| 10 months | 73.9 cm | 72 – 77 cm |
| 11 months | 74.8 cm | 73 – 77 cm |
| 12 months | 75.6 cm | 74 – 79 cm |
Girls height chart
| Child's age | Girls | |
|---|---|---|
| Height | ||
| Average | Normal range | |
| 0 months | 49.5 cm | 48 – 51 cm |
| 1 month | 53.5 cm | 51 – 56 cm |
| 2 months | 56.7 cm | 55 – 58 cm |
| 3 months | 60.3 cm | 59 – 62 cm |
| 4 months | 62.2 cm | 60 – 64 cm |
| 5 months | 63.8 cm | 62 – 68 cm |
| 6 months | 66.5 cm | 64 – 69 cm |
| 7 months | 67.3 cm | 65 – 70 cm |
| 8 months | 69.7 cm | 67 – 72 cm |
| 9 months | 70.5 cm | 68 – 73 cm |
| 10 months | 72.1 cm | 69 – 75 cm |
| 11 months | 73.5 cm | 71 – 76 cm |
| 12 months | 74.7 cm | 72 – 77 cm |
On a note! The data given in the table are considered standard when assessing the physical development of infants. However, it is worth remembering that babies are born with different weight categories and continue to gain body weight unevenly. So, one baby can “get heavier” by 0.5 kg in a month, and another by a whole kilogram; but as a result, the increase in both babies can be considered the norm, taking into account their individual development.
How are child height and weight standards calculated?
The calculation formula is used if parents need to track changes in the baby’s body weight, comparing each result with growing monthly norms. One of the approximate weight calculations used by pediatricians from the moment of birth until the first birthday is presented in a simple formula - M (kg) = m + 800n, where M is the baby’s body weight, m is the body weight at the time of birth and n is the current baby's age in months.
| Child's age | Increase per month | Increase for the past period |
|---|---|---|
| 1 month | 600 g | ≈ 600 g |
| 2 months | 800 g | ≈ 1400 g |
| 3 months | 800 g | ≈ 2200 g |
| 4 months | 760 g | ≈ 2950 g |
| 5 months | 700 g | ≈ 3650 g |
| 6 months | 650 g | ≈ 4300 g |
| 7 months | 600 g | ≈ 4900 g |
| 8 months | 570 g | ≈ 5500 g |
| 9 months | 550 g | ≈ 6050 g |
| 10 months | 500 g | ≈ 6550 g |
| 11 months | 450 g | ≈ 7000 g |
| 12 months | 400 g | ≈ 7400 g |
The rate of weight gain up to a year is usually recorded in the clinic by entries in the medical record, but they can also be monitored at home using special scales. If in short periods the scales show slightly less or more data in the table (with a difference of up to 150 g), then there is no need to worry, this is within normal limits.
Important!Sometimes a child’s weight gain differs significantly from the data given in the table. Large fluctuations in both directions should alert parents. If the lag is more than 350 g or more, something is wrong. Low body weight can seriously affect the development of an infant. If they come along with numerous complaints and disorders in the baby’s health, then the child must be examined by a pediatrician and neurologist.
Table of height gain for infants from 1 month to one year
The growth of a child from birth can be influenced by hereditary factors and, to a greater extent, by the constitutional characteristics of the little person’s body. Growth spurts can be especially noticeable between 3 and 4 months, and also between 6 and 8 months. At this time, in just one night the baby can gain a whole centimeter in length.
Calculation of the baby’s body length can be done using the approximate formula used by pediatricians: L (cm) = 100 – 8(4 – n), where L is the normal body length, n is the baby’s current age.
| Child's age | Average growth rate per month | Increase in height since birth |
|---|---|---|
| 1 month | 3 cm | ≈ 3 cm |
| 2 months | 3 cm | ≈ 6 cm |
| 3 months | 2.5 cm | ≈ 8.5 cm |
| 4 months | 2.5 cm | ≈ 11 cm |
| 5 months | 2 cm | ≈ 13 cm |
| 6 months | 2 cm | ≈ 15 cm |
| 7 months | 2 cm | ≈ 17 cm |
| 8 months | 2 cm | ≈ 19 cm |
| 9 months | 1.5 cm | ≈ 20.5 cm |
| 10 months | 1.5 cm | ≈ 22 cm |
| 11 months | 1.5 cm | ≈ 23.5 cm |
| 12 months | 1.5 cm | ≈ 25 cm |
Anthropometric parameters at birth - what is the norm for newborns?
According to the World Health Organization, the body weight of a full-term baby is considered normal if it is between 2.5 and 4.5 kg. Moms and dads should know that WHO weight indicators are generally indicative.
If the expectant mother has gone through 9 months of pregnancy without serious complications, the baby’s weight will most likely be 3 – 3.6 kg. If the baby was born earlier than expected (before the 37th week), then its weight will be on average 2.5 kg. But there is no need to worry - after a while, a tiny newborn will definitely catch up with his peers. This is facilitated by maintaining a sleep and rest schedule, nutritious nutrition and finding the little person in a favorable living environment.
The table below shows the height and weight of boys, as well as the height and weight of girls in the form of average parameters, indicating the order of maternal birth.
Immediately after birth, most infants lose up to 10% of their initial body weight, so nature intends to rid the baby of excess fluid and accumulated meconium (feces). But after 7-12 days, the weight loss is replenished:
- in the first weeks of life, the baby gains at least 125 g per week;
- from the second month of life, the set is 600-800 g per 30 days.
Having noticed that the baby’s weight is noticeably lower than the prescribed norms, parents should figure out whether there is a reason for concern? Each baby develops at its own pace, so slight variations in height and weight are quite acceptable. If up to the age of three months the toddler gains at least 0.5 kg per month, and from the third to six months, 0.3 kg, and there are no complaints, then there is no reason to worry.
Important! Normally, during the first year of life, babies triple their initial weight (for example, from 3 kg to 10 kg). Girls often gain weight at a lesser rate than boys before 12 months. The acceptable difference in children of the same age can be up to 600-800 g.
How does a newborn gain weight (by week)
Active weight gain in infants occurs in the first eight weeks of life. This is a normal reaction of a child’s body to a change in living conditions, and adaptation to a new diet and regimen.
| Age | What happens to the baby's weight |
|---|---|
| First 3 days of life | Physiological weight loss (up to 7-10% of initial body weight) |
| First week of life | A newborn baby fed with breast milk will gain about 100 g in weight in 1 week. |
| Second week of life | The toddler continues to grow and gradually gain body weight. A healthy baby will add up to 250 g to the initial weight in 2 weeks. |
| Third week of life | During the 3rd week after birth, the baby’s weight gain will average 150-200 g. |
| Fourth week of life | The first month is coming to an end. Over the past 4 weeks, the child has gained approximately 600-800 g. |
| Fifth week of life | The child is actively growing, eating with appetite and gaining strength for growth. By the fifth week, the baby's weight ranges from 3.9 to 5.1 kg. |
| Sixth week of life | During a given week, the baby increases its body weight by 200-250 g. |
| Seventh week of life | At week 7, the baby gains an average of 250-300 g. |
| Eighth week of life | The rate of increase in body weight gradually decreases. By the end of the 8th week, the baby adds about 200 g to its weight. |
The digital value of height and body weight indicators in infants is very arbitrary and depends on many factors:
- choice of feeding the baby (mother's milk or adapted formula);
- the amount of food the child eats per day;
- the presence of diseases that prevent the proper absorption of food;
- activity and the amount of time the child spends sleeping and awake;
- often - gender (girls often gain weight more slowly than boys).
Important! Pediatricians calculate height and weight standards for infants in conjunction with tables of the average statistical norm, but in some cases they use experimental calculations. Often, insignificant deviations of indicators from WHO tables are considered acceptable. We also must not forget about genetic heredity - if below average height prevails in a family, you should not expect that the heir will gain 5 cm per month.
Weight and height of the baby after birth - what to pay attention to
In the maternity hospital, doctors record the weight and body length of a newborn baby and carefully monitor changes, especially in low birth weight and premature babies. They are weighed once a day at the same time, mainly in the morning.
- Daily weight gain is considered normal at the rate of 15 g per 1 kg of body weight. Growth is measured only once a week, and its increase will be assessed after 3-4 weeks. By this time it should be at least 2.5-3 cm.
- Most infants, after gaining initial weight, subsequently gain weight quickly, especially during periods of growth spurts. They occur approximately in the middle of the second week of life, and then between 3 and 6 weeks.
- The average child gains an average of 20 grams per day. By the end of the first month of life, the scales at the clinic will show approximately 3.8-4 kg. The height and weight of boys is usually slightly higher than that of girls - the difference in weight can reach 0.4 kg and 1-1.5 cm.
A newborn weighs little - is there any reason to worry?
If an infant was born prematurely or weighed very little at birth, then the norms for growth and weight gain for him will differ significantly from the norms for babies born on time.
Degrees of prematurity of the baby (WHO information):
Birth weight largely determines a child's ability to adapt to life outside the womb. If the baby was born 2.5 kg, this process will take place without deviation from the desired course. If the baby “did not reach” this figure, then adaptation can be much more difficult. What to do?
First, keep warm
In children with low body weight, the layer of subcutaneous fat is very thin, almost absent. In this case, it is difficult for kids to keep warm and the danger of hypothermia is quite real. The temperature of a small baby should be measured at least once every 5-6 hours. If it is below 36.5°C, the baby must be warmed. The best way is skin-to-skin contact between mother and baby. Mom puts on an unbuttoned shirt, and the baby is placed on her chest. This way, the child’s temperature and pulse normalize, and the mother’s emotional state improves.
Second, we feed the baby by the hour.
This is a necessary condition, because in underweight children, the level of glucose in the blood often falls below the required level. This can cause sleep disturbances in the baby and a decrease in overall vitality. The best prevention of this condition is to frequently put the baby to the breast. In the first days, the child should drink about 60 ml of milk per day. Then the volume of liquid drunk per day should increase daily by 20 ml per 1 kg of body weight until it reaches 200 ml per 1 kg of body weight. Those. with a weight of 2 kg, the child will need to be given at least 400 ml of milk per day (of course, the amount is divided into 8-10 doses).
Third – massage for appetite and general development
If the child has gained the coveted 2500 g, and the doctors (pediatrician, neurologist) give the go-ahead for massage therapy, it’s time to undergo several strengthening procedures. Massage promotes weight gain, as it whets the appetite even in such babies. It is carried out an hour and a half after eating. It is better for a professional children's massage therapist to massage the baby, or the mother can master it on her own. After lubricating your hands with cream, you need to carefully knead the baby’s muscles according to the pattern from top to bottom - starting with the neck, then the back, buttocks, legs. At the end of the procedure, massage the arms and chest.
Weight and height gain by month: a quick overview of up to a year
Criteria for proper baby development can be confusing for new parents. If it’s difficult to figure it out, you can always ask your local pediatrician for advice. The main thing to remember is that when calculating measurements, you should focus on the initial data at the birth of the baby and only then calculate the individual monthly amount of weight gain and body length.
| 1 month | During the first four weeks after birth, the baby normally gains 600 g of weight and is up to 3 cm in height. The nutritional plan is compiled individually. The best option is a short interval between feedings (2-2.5 hours). For harmonious development, breastfeeding should be a priority. If the baby is artificial, the adapted formula should be fed in an amount of 90-120 ml per feeding. |
| 2 months | A baby's weight gain in 2 months will average 700 g + 3 cm of height. The breaks between feedings may already become a little longer, about 3-3.5 hours. During this period, you should not rush to wean your child off feedings at night, otherwise the weight will not grow as rapidly. |
| 3 months | In the third month, the child gains 800 g and grows 2.5 cm in length. The diet remains the same. Only in the case of artificial feeding can it be allowed to increase the interval between feedings to half an hour. The volume of the mixture in this case increases, making a portion of 150 ml. From the age of 3 months, the baby may be bothered by colic and gas formation, so appetite disturbance is often noted. |
| 4 months | By the end of the fourth month, the baby can gain up to 750 g and grow by 2.5 cm. The feeding regimen does not change. In the following months, the intensity of weight gain will gradually decrease. |
| 5 months | At five months, the baby will gain 700 g, and its height will increase by 2 cm. Indicators of weight and length by this period double compared to the child’s data at birth. |
| 6 months | By six months, the baby adds only 650 g to his body weight, and the increase in height is on average 2 cm. The interval between feedings with the introduction of complementary foods into the diet increases to 3.5-4 hours. It is better to start complementary feeding with hypoallergenic vegetable crops - zucchini, cauliflower , broccoli. The puree is given to the child in the amount of 1/2 tsp, the volume is gradually increased to 50 g over 5-7 days. By the end of the sixth month, complementary foods are replaced by one full feeding. |
| 7 months | At seven months, the baby’s weight gain is 600 g and height increases by 2 cm. The child eats according to the usual diet, mainly dairy foods, and only one of the feedings contains complementary foods - gluten-free porridge or vegetable puree. You need to gradually accustom your baby to new dishes, offering the introduced product in “drip” portions - from 1/2 tsp. at a time. This way, the danger of sudden allergies (food can be eliminated in time) or food intolerance is avoided. |
| 8 months | Body weight gain continues by the eighth month, the gain is no longer so active - only 550 g, and height continues to increase by 2-2.5 cm. The child’s menu can already be diversified with new types of cereals, fruits and vegetables. The first meat purees from rabbit or turkey are added to the diet, and the baby also gets acquainted with chicken yolk, which is added in tiny amounts to liquid food. |
| 9 months | By the end of this month, the little man will have weighed 500 g and grown by about 2 cm. The diet is already complete and varied: the baby tries vegetable purees from several ingredients, with priority fresh pureed fruits, and a new product - cottage cheese, as well as kefir from approved baby food . |
| 10 months | The weight gain in the tenth month will be 450 g, the baby will add the usual 1.5 - 2 cm in height. A child at this age already happily drinks up to 100-150 ml of fruit juices (apple, pear). The baby's delicate stomach is already able to digest complex carbohydrates and pieces of banana, plum, and peach. Porridge for a baby can be seasoned with butter or vegetable oil. |
| 11 months | At eleven months, the baby’s weight will increase by at least 400 g, and his height will increase by 1.5 cm. Boiled fish fillets of white varieties are included in the menu for children. |
| 12 months | At one year old, the baby’s weight triples from the moment of birth, and the baby has added about 25 cm in length since birth. By the time the baby is one year old, the menu is already quite complete and varied: it contains meat, vegetables, fish, and grains. Food is no longer crushed into a homogeneous puree, but only in pieces to encourage the child to chew. This tactic will be useful in preparing for the transition to independent eating. |
