Height of a one and a half year old baby

Many mothers should have found that their babies will not grow so fast after one and a half years old, but parents should understand that our babies are still growing and developing, just slowly. Parents should not be anxious at this time, but should accompany the baby patiently and pay more attention to his weight changes. So what is the standard weight of a one and a half year old baby? How should we help him measure his height and weight?

Height and weight of one and a half year old baby

After birth, the baby's height and weight continue to increase, but the speed of height and weight growth varies at different stages. So, what is the height and weight of a one and a half year old baby?

According to experts, the height of a one and a half year old boy is 79.4~85.4 cm and the weight is 10.3~12.7 kg; while the height of a one and a half year old girl is 77.9~84.0 cm and the weight is 9.7~12.0 kg.

In fact, there are basic rules for the growth of baby's height and weight. Normally, the average height of a baby is about 50 cm when it is born. The height growth rate is fastest in the first year, with an average increase of 2.5 cm per month from 1 to 6 months and an average increase of 1.5 cm per month from 7 to 12 months. By the age of one, the height has increased by 25 cm compared to the height at birth, which is about 1.5 times the height at birth. In the second year after birth, the baby's height growth rate begins to slow down, only increasing by 10 to 12 centimeters throughout the year. After that, from the age of 2 to before puberty, the baby's height growth enters a relatively stable stage, with an average increase of 6 to 7 cm per year.

As for the baby's weight gain, there is a basic rule: for a normal full-term baby, the birth weight is between 2000 and 4000 grams. In the first 3 months, the baby gains 180 to 200 grams per week, 150 to 180 grams per week at 4 to 6 months, 90 to 120 grams per week at 6 to 9 months, and 60 to 90 grams per week at 9 to 12 months. During the period of 1 to 2 years old, the baby's weight increases by an average of 2500 to 3000 grams. After the age of 2, the average weight increase is about 2000 grams per year until puberty.

Height and weight standard for one and a half year old baby

Height and weight are important indicators of a baby's physical development. The growth rates of their height and weight vary at different ages. So, what is the height and weight standard for a one and a half year old baby?

Generally speaking, the standard height of a one and a half year old boy is 79.4~85.4 cm, and the average standard weight is 10.3~12.7 kg; while the standard height of a one and a half year old girl is 77.9~84.0 cm, and the standard weight is 9.7~12.0 kg.

In addition, the baby's height and weight growth follow basic rules. The birth weight of a normal full-term baby is between 2000 and 4000 grams. In the first three months, the baby's weight increases by 180 to 200 grams per week. At 4 to 6 months, the baby's weight increases by 150 to 180 grams per week. At 6 to 9 months, the baby's weight increases by 90 to 120 grams per week. At 9 to 12 months, the baby's weight increases by 60 to 90 grams per week. During the period of 1 to 2 years old, the baby's weight increases by an average of 2500 to 3000 grams. After the age of 2, the average weight increase is about 2000 grams per year until puberty. If we talk about the multiples of weight gain, the baby's weight at 6 months is twice that at birth, about 3 times that at 1 year old, and about 4 times that at 2 years old.

As for the baby's height growth, the basic rules are as follows: the average height of a newborn baby is about 50 cm, and the height grows fastest in the first year. The average monthly growth is 2.5 cm from 1 to 6 months, and 1.5 cm from 7 to 12 months. At one year old, the height has increased by 25 cm compared to the height at birth, which is about 1.5 times the height at birth. In the second year after birth, the baby's height growth rate begins to slow down, only increasing by 10 to 12 centimeters throughout the year. After that, from the age of 2 to before puberty, the baby's height increases by an average of 6 to 7 cm each year. ...

How to measure baby's height

During the baby's growth and development, parents are very concerned about whether the baby's height is developing normally, so they measure the baby's height every once in a while. So, how to measure the height of a baby?

For babies under 3 years old, because they are unstable when standing or have difficulty sitting still, their height should be measured while they are lying flat. When measuring, let the baby lie flat on the table or wooden bed, put a tape measure on the table or the edge of the bed, then put two pieces of cardboard on the top of the baby's head and the soles of the feet respectively, and measure the distance between the two pieces of cardboard. The measured data is the baby's height. When measuring your baby's height, make sure the cardboard placed on the soles of the feet is close to the soles of the feet, and not just on the toes. Otherwise, the measured height will be slightly greater than the actual height.

For babies over 3 years old, their height can be measured while they are standing. When measuring, you can nail a height gauge or tape measure to the wall to measure. At this time, the baby should keep upright, with his back against the wall, so that his heels, buttocks, shoulders and head are in contact with the wall, his hands are perpendicular to the sides of the body, his knees stand straight without bending, his heels are together, toes slightly apart, his eyes are looking straight ahead, and his head cannot be tilted up or down. Then press a horizontal wooden board tightly on the top of his head and read the value on the height meter or tape measure, which is the baby's height.

It is worth noting that the baby's height is affected by many factors, such as genetics, endocrine system, nutrition, disease and physical exercise, etc. Generally speaking, before the age of 3, a baby's height is not greatly affected by genetics, but is mainly affected by factors such as nutrition and disease.

How to measure baby's weight

Every parent hopes that their baby can grow up to be white, plump and cute. However, it is not a good thing for a baby to be too fat, as it increases the chances of him or her suffering from obesity. Therefore, during the baby's growth and development stage, parents should measure the baby's weight regularly to prevent the baby from gaining weight too quickly. So, how do you measure your baby's weight?

For babies between 1 month and 1 year old, it is best to use a lever scale, such as a hook scale, a pound scale, etc. to measure their weight. The method of measuring the weight of babies at this age is basically the same as that of newborns, except for the choice of scale. The specific operations are as follows:

1. Measure while holding the baby: Parents can hold the baby on the scale to weigh the baby, and then subtract the adult's weight to get the baby's weight.

2. Measure with a children's scale: The maximum weighing capacity of this scale is generally not more than 50 kg. When measuring, the child should lie flat on the bed of the scale. If the child is older than 6 to 7 months and can sit, he can also sit on the seat of the scale for measurement.

Tips: The above measured data should be subtracted from the weight of the baby's clothes and diapers.

For babies over 1 year old, they can generally stand and walk. You can let them stand directly on the bed of the children's scale to measure their weight. Of course, the measured amount should also be reduced by the weight of the baby's clothes.

Factors that affect baby's development

Although the baby's growth and development follows certain rules, there are considerable individual differences due to the influence of many factors. So, what are the factors that affect the baby's development?

1. Genetic factors. The characteristics, potential, limits, trends, etc. of a baby's growth and development are influenced by the genetic factors of both parents.

2. Environmental factors. A good living environment and sanitary conditions such as fresh air, clean water, and plenty of sunshine are beneficial to the baby's growth and development. Otherwise, it will have adverse effects on the baby.

3. Nutritional factors. Nutritional factors are one of the important factors affecting baby's growth and development. Adequate and reasonable nutrition is the material basis for the baby's growth and development. If the baby's nutrition intake is insufficient, it will lead to weight loss, which will affect the growth of height and the functions of other body systems, such as immune function, endocrine function, neural regulation function, etc. The younger the baby is, the greater the impact of nutrition.

4. Family factors. The warmth of the family, the care of loved ones and the role of good role models all have an important influence on the formation of a baby's personality and character, emotional stability and intellectual development.

5. Disease factors. When a baby suffers from an acute illness, his weight often does not increase or even decreases; when he suffers from a chronic illness, it can affect the growth of both weight and height.

6. Exercise factors. According to research, moderate exercise helps the secretion of growth hormone in the body, which in turn helps growth and development. Therefore, babies should exercise appropriately to facilitate their growth and development.

In fact, the growth and development of every baby is related to many factors, just like when we adults are in a good environment, our work efficiency will also be improved. So we should not quarrel in front of the baby. The environment should also be better. Take the baby out for a walk more often, breathe fresh air, and check whether your family has any hidden diseases such as genetic history. These are all helpful for the baby's development.