Table of height and weight of a child up to a year (WHO)

It's no secret that each baby has their own growth and body weight indicators. They depend on many factors: individual and hereditary. The World Health Organization has developed certain standards to which it “drives” newborns. And for this there is a special table. The child’s growth and weight standards, presented below, will help parents determine whether their baby is developing correctly or not.

Optimal performance

The table of the norm of growth and weight of the child up to a year is one. That is, it is designed for virtually all newborn babies. The indicators in it are average, they apply only to a healthy category of children. It is clear that if the baby was born prematurely or became seriously ill, then at first it will lag behind its peers. It will take time for him to catch up with them. Therefore, while parents do not pay attention to indicators.

In addition, not all babies have a table for the height and weight of a child up to a year. WHO, when compiling it, focused more on the Caucasian race and the characteristic features of the inhabitants of the American continents. Accordingly, a lot depends on nationality: for Chinese babies, these sizes can be gigantic, for black children - too small. In addition, you should take into account the height and weight of the parents, the individual characteristics of the body crumbs. Despite this, adults are required to keep indicators under control in order to timely detect problems in the development of the child.

WHO guidelines

Firstly, the child’s parents should always be on the alert. They are responsible for the health status of the baby. Secondly, it is the responsibility of the pediatrician to determine the size of the newborn in the first year of life. Every month, at the appointment, the doctor records the indicators and gives advice to young mom and dad. The norm of weight and height of children (WHO table) is the easiest and most popular way to determine if everything is fine with your little one, whether he needs to adjust his diet and daily routine. If the child has added little in one month, do not worry - in the next 30 days he will “catch up” with his own. But when the lag is observed for two months, it is worth contacting an experienced specialist.

The standards of the World Health Organization are designed for children in their first year of life. In addition to mass and body length, they include the volume of the baby’s head and the circumference of his chest. At such a tender age, these indicators are important, since they can be used to determine the development of bone and muscle mass in children. At this age, the baby’s musculoskeletal system is only being formed, therefore, having noticed strong discrepancies with the numbers of the table, you need to immediately sound the alarm.

Fattening Index

With it, you can assess the physical condition of the child. The “fattening” index characterizes the level and volume of the subcutaneous fat layer. This indicator is relevant when the baby is six months old. It is at this age that doctors determine whether a young body gets enough nutrients or not. The index is calculated by the following formula: we multiply the circumference of the shoulder (just below the BCG vaccine) by 3, add the circumference of the widest part of the leg and the volume of the thigh (in the upper third) to this value, subtract the baby’s height in centimeters from the amount received. Normally, a figure from 20 to 25 is obtained. If the result is lower, this indicates a child’s insufficient fattening, if higher, an excess of nutrition.

Remember that not only the norm of the child’s weight and height is important: the table also takes into account the size of the baby’s head . Of course, the circumference of the skull can be individual. However, the rapid increase in volume, or, conversely, its barely noticeable growth, speak of serious problems associated with various pathologies.

Norm calculation example

It was taking into account the average weight of newborns by experts that a table was compiled of the norm of growth and weight of the child up to a year. The WHO has determined the starting weight point from which to base on determining the normal body weight of the baby. According to doctors, the standard is 3 kilograms of 100 grams. If the baby in the first month of life should normally gain 600 grams, then the coefficient is calculated as follows: 3100: 600 = 5.67. This is exactly the constant that you should use for individual calculations.

Suppose a baby was born with a weight of 3 kilograms. To determine how much he should gain for the starting 30 days of life, you need to divide the body weight by a constant: 3000: 5.67 = 530. That is, exactly so many grams should appear in the baby in the first month of life. Remember that this formula cannot be applied to babies born prematurely, or to those who are overweight. The figures that the table of the norm of growth and weight of the child shows us are in any case approximate. Only an experienced physician can calculate individual indicators specifically in your case.

Table height and weight of babies

It shows how much the baby should add in the first year of life. At the same time, the weight and height are the same for boys and girls, but the volumes of the chest and head vary. The reason is that for body mass the sexual attribute in the first year of life does not matter, instead it affects the circumference of body parts in connection with the physiological characteristics of the body.

Table of height and weight of a child up to a year

Age in months	Weight gain (g)	Increase in height (cm)	Head circumference (boys)	Head circumference (girls)	Chest volume (boys)	Chest volume (girls)
1	600	3	37.3	36.6	36.3	36
2	800	3	39,2	38,4	39	38.1
3	800	2,5	40.9	40	41.3	40
4	750	2,5	41.9	41	42.8	41.8
5	700	2	43,2	42	44.3	43
6	650	2	44,2	43	45.4	44.3
7	600	2	44.8	44	46,4	45
8	550	2	45.4	44.3	47.2	46
9	500	1,5	46.3	45.3	47.9	46.7
10	500	1,5	46.3	46.6	48.3	47.3
eleven	400	1,5	46.9	46.6	48.7	47.7
12	350	1,5	47.2	47	49	47.7

It turns out that your baby in the first year of life should recover by 7 kilograms of 200 grams and grow by 25 centimeters. As for the head and chest circumferences, the table shows the original numbers.

Height

As you can see, the baby is most active in height and weight in the first three months of life. Then it slowly decreases to optimal performance. The growth of the peanut depends on many factors, the main of which is heredity. In addition, it affects the baby's belonging to a particular gender, nationality, as well as the quality and quantity of the mother’s nutrition. The body length of newly born babies normally ranges from 45 to 55 centimeters. The baby grows most intensively in the first three months - almost 3 centimeters every month. Further, the increase slows down: from 3 to 6 months - 2.5 cm, from 6 to 9 - 2 centimeters. On average, a child “stretches” 25 centimeters per year: his height is 75 cm.

Further, the norm of the child’s weight and height is slightly modified. A table in 2 years will look completely different. So, in a year and a half the baby is 82 cm, in 2 years - 88 cm, in 2.5 - 93 cm, in 3 - 97 cm, in 3.5 years - 101 cm and more. The allowable difference is 6 centimeters in one direction or the other.

Weight

There are many ways by which you can calculate the weight necessary for the crumbs. So, in the first six months of life, they use the following formula:

Body weight = birth weight (g) + 800N , where N is the number of months.

Further, the rate of weight gain decreases, therefore, the equation is significantly complicated:

Initial weight = birth weight + 800 x 6 (increase for the first six months) + 400 (N-6) , where N is the number of months (from 6 to 12).

To simplify the formula, one can lead to the following scheme: in half a year the average weight of a baby is 8,200 g, 400 g are added for all subsequent months, and 800 g is subtracted for each “extra” one. Mass is a dynamic indicator. Children born with heavy weight, the first year of life, look larger than their peers. Those who were prematurely catch up with other babies by 2 years. With regard to further development, the table of the norm of growth and weight of a child under 3 years old looks like this: in a year and a half the baby weighs about 11 kg, in 2 years - 12.2 kg, in 2.5 - 13.3 kg, in 3 - 14 , 3 kg, in 3.5 - about 15 kilograms. The allowable difference is 2.5 kg.

If something went wrong ...

Parents must know what the norm of weight and height of children. The table, girls and boys in which are divided only in the category of circles, shows that at first they gain the same weight - regardless of gender. And if up to six months the increase is active, then further it decreases. The explanation is simple: after 6 months, babies begin to sit, crawl and walk. Accordingly, they consume more calories and energy, while less kilograms are deposited. A very small increase indicates malnutrition. Usually this problem occurs in infants: the mother may have reduced secretion of breast milk. They solve it in two ways: they stimulate the production of an additional amount of liquid or they feed the baby with mixtures.

It should be noted that overweight also causes a lot of trouble. The table of the norm of growth and weight of the child shows that in a year old babies should weigh about 10 kilograms. If they gained extra 2 or 3 kg, it’s hard for them to move, crawl, walk, run. Such crumbs are more prone to allergic reactions, they have a longer and harder cold. Overweight is most often observed when the baby is breast-fed.

What to look for?

In most cases, girls develop faster than boys. Therefore, the table of the norm of growth and weight of the child can partially change: the baby can gain a little more than the fixed standard indicator. No need to worry. The advice of a doctor is only necessary when the deviation is very significant. After the baby is born, you need to determine the foundation on which you will make your calculations. At the same time, it will not be the baby’s weight when they are born, but the body weight of the baby during discharge - after staying in the hospital, he loses a little weight, which is the physiological norm.

The older the child becomes, the more his indicators are aligned, approaching the generally accepted, standard. Of course, you can be very upset at the matinee in kindergarten that your peer is a cut above his head. Dont be upset. If the peanut is healthy, active, follows the daily regimen and eats well, you should not have any reasons for concern.