The ideal baby growth stage at age 0

As a parent, you need to know the ideal growth for your baby as a reference for whether or not you are on the right "track". This includes the baby's height, weight, and head circumference. The reason is, if it is not in accordance with the stage of its growth, this could indicate a problem. So, what is the baby's length, weight, and head circumference in the first year of age?

Measure baby growth

Quoted from Pregnancy Birth & Baby, babies will see their growth in the first 12 months or 1 year. Not only activities, physical changes will also be seen directly by you as a parent.

The process of this baby's development has begun to form from the beginning of pregnancy, until the baby is 2 years old. This is why the time span for development of a baby is known as the first 1000 days of life.

In addition to the formation of the brain and other important organs, the length or height, weight and circumference of the baby's head will also be largely determined by the adequacy of nutrients the child gets during this time.

What is the ideal baby height for 0-12 months?

Quoting from the Indonesian Pediatrician Association (IDAI), the growth of a child's body is a change that is easily visible.

These various changes will later affect the physical size and shape of the child's body. For the age of the baby, the measurement of height is also known as the measurement of body length.

In addition to the baby's weight and head circumference, other indicators that need to be measured to determine whether or not the baby's growth is good is to identify the baby's length or height.

For babies who cannot stand upright, the measurement used is the length of the body, aka when they are lying down. However, this measurement of body length is synonymous with height.

Referring to the World Health Organization (WHO) and the Indonesian Ministry of Health, the following are benchmarks for the ideal length or height of babies from birth to age of 12 months or 1 year of baby:

Newborn baby

Immediately after birth, the baby's weight and height will be measured immediately to find out whether his condition is in the normal range or not.

For their own height or length, newborns usually have varying body lengths. However, the ideal length or height for newborns is 45.4-53.7 centimeters (cm).

In detail, usually newborn boys have a height of 46.1-55.6 cm, while female babies are 45.4-54.7 cm.

Infants aged 1-3 months

When the baby is 1 month old, the length or height of the baby will also increase. The ideal baby length or height for boys is generally around 50.8-60.6 cm, and 49.8-59.5 cm for girls.

At 2 months of age, the ideal baby height is around 54.4-64.4 cm for boys and 53.0-63.2 cm for girls.

Until finally, at the age of 3 months, the ideal length or height for a boy is around 57.3-67.6 cm. Meanwhile, the ideal baby body length for women is in the range of 55.6-66.1 cm.

Infants aged 4-6 months

As the baby's age increases to 4 months, the length or height of the ideal baby will also increase. Body length is in the range of 59.7-70.1 cm for male babies and 57.8-68.6 cm for female babies.

At the age of 5 months, the ideal baby length or height is 61.7-72.2 cm for boys and 59.6-70.7 cm for girls.

Furthermore, at 6 months of age, the ideal baby height for boys is generally in the range of 63.6-74.0 cm, and 61.2-72.5 cm for female babies.

Infants aged 7-9 months

Until the baby arrives at 7 months of age, the ideal baby length or height for a boy should have reached 64.8-75.5 cm. Meanwhile, the length of the baby girl's body was in the range of 62.7-74.2 cm.

When the baby is 8 months old, the ideal body length for boys is around 66.2-77.2 cm, and 64.0-75.8 cm for female babies.

At the age of 9 months, your little one usually has a body length of about 67.5-78.7 cm for boys and 65.3-77.4 cm for girls.

Infants aged 10-12 months

Right now, your little one has almost reached his first birthday. At 10 months of age, the ideal baby length or height for boys is in the range of 68.7-80.1 cm.

In contrast to the length of your baby girl, which reaches about 66.5 - 78.9 cm. Arriving at 11 months of age, your baby boy usually has a body length of 69.9-81.5 cm and a baby girl 67.7-80.3 cm.

Even at the age of 12 months, the ideal body length for boys should be 71.0-82.9 cm and for girls 68.9-81.7 cm.

How to calculate the ideal baby's height

Since birth, the average length of a baby increases by about 1.5-2.5 cm every month until the baby is 6 months old. Furthermore, at the age of 6 to 12 months, the growth of the baby's body length increases on average 1 cm per month.

During routine check-ups, your doctor will monitor your baby's growth in length or height.

The goal is to find out as well as detect whether the baby's growth and development is going well according to his age.

Here's how to measure the length or height of a baby:

Body length by age (PB / U)

Measurement of body length by age (PB / U) is an indicator to measure the length of a baby's body based on his current age.

As previously explained, the indicator of body length is used because the age of the baby cannot stand upright.

In addition, the indicator for measuring body length per age (PB / U) is more aimed at children under 2 years of age.

When children are 2-18 years old, they can use indicators of measuring height for age (TB / U).

That is why to get a body length measurement, the baby must be placed in a lying position on top length board or infantometer.

This is certainly not like measuring height that can use a tool microtoise (mikrotoa) while standing up straight.

Based on the Minister of Health Regulation Number 2 of 2020, the results of the assessment of the baby's body length based on PB / U, namely:

• Very short: less than -3 SD
• Short: -3 SD to less than -2 SD
• Normal: -2 SD to +3 SD
• Height: more than +3 SD

The unit of measurement is known as the standard deviation (SD). As an illustration, babies are said to have normal body length when they are in the range -2 to +3 SD in the body length table according to age from WHO.

If it is below -2 SD, the baby is said to have a short stature. Meanwhile, if the baby is more than +3 SD, it is said to be high.

However, it is important to know that every child has a different personal growth chart. Some children may experience faster growth than others.

There are also some children whose developmental progress is slightly slower, but are of normal length and weight according to the existing growth charts.

It should also be noted that the length growth charts for boys and girls are different. Generally, male babies will be heavier and have a higher body weight than girls.

The growth patterns of male and female babies will also be different.

Chart of development of body length for male babies

Table of development of body length for baby girls

The table above represents the measurement range between -2 SD to 3 SD of the WHO growth standard for body length index according to age in male and female infants.

Well, you can compare the results of the growth in measuring the length or weight of the baby according to these standards.

If the results are still within the age-appropriate range, your baby's growth is included in the normal category or ideal baby body length.

What is the ideal weight growth for babies 0-12 months?

It is important to know whether your baby's weight growth is ideal or not. Based on the World Health Organization (WHO) and the Indonesian Ministry of Health, here are the ideal baby weight benchmarks for ages 0-12 months or 1 year:

Newborn baby

The weight of the newborn will be directly measured along with the baby's height. This aims to determine whether the condition of the baby's weight and height is in the normal, under, or excessive range.

Male baby body weight is classified as normal when it is in the range of 2.5 kilograms (kg) to 3.9 kg. Meanwhile, for female babies, normal newborn weight should be 2.4-3.7 kg.

Newborns are said to be large when their body weight is above 4 kg and small when their weight is below 2.5 kg.

This relatively small body weight can indicate that the baby is experiencing low birth weight (LBW).

However, the results of this measurement only apply to babies born at normal gestational age or at 37-40 weeks of gestation.

For babies born prematurely or less than normal gestational age, their body weight will tend to be low or under 2.5 kg.

Infants aged 1-3 months

In the first few months of life, your baby's weight growth usually appears quite rapid. Around 1 month of age, the ideal body weight for boys is between 3.4-5.1 kg, and for girls from 3.2-4.8 kg.

Then, at the age of 2 months, the ideal body weight for boys is around 4.3-6.3 kg and for girls, namely 3.9-5.8 kg.

Until the age of 3 months, the ideal baby body weight growth for boys is in the range of 5.0-7.2 kg and 4.5-6.6 kg for women.

Infants aged 4-6 months

Arriving at the fourth month or to be precise, the baby is 4 months old, the ideal baby body weight for boys should be in the range of 5.6-7.8 kg, and 5.0-7.3 kg for girls. Likewise, body weight in the fifth and sixth months, which will still continue to increase.

At the age of 5 months, the ideal body weight for boys is 6.0-8.4 kg and for girls 5.4-7.8 kg.

Then, around the age of 6 months, the ideal baby body weight for boys normally weighs 6.4-8.8 kg and 5.7-8.2 kg for women.

Infants aged 7-9 months

When the baby is 7 months old, the ideal baby body weight should be in the number of 6.7-9.2 kg for boys and 6.0-8.6 for women.

Furthermore, at the age of 8 months, the ideal body weight for boys is around 6.9-9.6 kg and for girls 6.3-9.0 kg.

Until they arrive at the age of 9 months, the ideal baby weight growth for boys should be around 7.1-9.9 kg and for girls 6.5-9.3 kg.

Infants aged 10-12 months

Even at 10 months of age, the ideal baby weight for boys is around 7.4-10.2 kg and for girls from 6.7-9.6 kg.

Furthermore, at 11 months of age, male baby weights should be in the range of 7.6-10.5 kg and 6.9-9.9 kg for female babies.

At the age of 12 months of age, the ideal body weight growth for boys is normal, which is in the range of 7.7-10.8 kg and female babies from 7.0 to 10.1 kg.

The ideal weight measurement stages for babies

Knowing how much a healthy baby is growing in body weight can be done at home using a special scale and meter.

It aims to measure the length and weight. The next step is to compare the results of the numbers printed on the tool with a growth chart for the length and weight of normal babies based on the age of the little one.

The growth chart below is a standard set by WHO, which is also used as a reference for doctors in Indonesia.

Table of normal weight development for male babies

Table of normal weight development for baby girls

Source: WHO and the Indonesian Ministry of Health

The table above represents the measurement range between -2 SD to 3 SD of the WHO growth standard for weight-for-age index for girls and boys.

What is the ideal baby's head circumference from 0-12 months?

Based on the Indonesian Pediatrician Association (IDAI), the size of normal head circumference in babies from birth to 2 years or 24 months is 35-49 centimeters (cm).

From the time the baby is born to the next 2 years, the circle of your little one's head will continue to grow rapidly. Your little one's head circumference will continue to expand rapidly during their first two years of life.

The following is the average size of normal head circumference in infants according to the World Health Organization (WHO) until the age of the baby is 12 months or 1 year:

Newborn baby

When a baby is born, the normal head circumference is usually in the range of 31.9-37.0 cm for boys and 31.5-36.2 cm for girls.

The measured number of the child's head circle will continue to grow until he is an adult, as a sign that his brain size is growing well.

Infants 1-3 months

Entering the age of a 1 month baby, the size of your baby's head circle is certainly getting bigger and different from when he was just born. Evidently, male babies generally have a normal head circumference of 34.9-39.6 cm.

Meanwhile, the size of the head circumference of baby girls ranges from 34.2 to 38.9 cm. A month after that, at the age of 2 months, the circumference of the head of male babies is generally 36.8-41.5 cm, and for girls 35.8-40.7 cm.

Until the baby arrives at the age of 3 months, the growth of a normal baby head circle for boys ranges from 38.1-42.9 cm. If your baby is a girl, the normal head circumference is generally around 37.1-42.0 cm.

Infants 4-6 months

Now that the baby is 4 months old, ideally, a normal head circumference at this age should be 39.2-44.0 cm for boys and 38.1-43.1 cm for girls.

Increasing 1 month, namely at the age of 5 months, the normal head circumference of babies is generally in the range of 40.1-45.0 cm for boys. Meanwhile, for female babies, the normal size of the baby's head circle usually reaches 38.9-44.0 cm.

Now at 6 months of age, the growth in head circumference is getting bigger and bigger. The normal head circumference for boys generally reaches 40.9-45.8 cm and for girls 39.6-44.8 cm.

Infants 7-9 months

Right at the age of 7 months, the normal head circumference for boys is in the range of 41.5-46.4 cm, and for girls around 40.2-45.5 cm.

At the age of 8 months of age, the little boy who usually has a head circumference in the range of 42.0-47.0 cm. Meanwhile, for women, it is generally between 40.7-46.0 cm in this not the 8th.

Until 9 months of age, baby boys should ideally have a normal head circumference of 42.5-47.5 cm, and girl babies 41.2-46.5 cm.

Babies 10-12 months

When the baby is 10 months old, the circumference of the head should reach 42.9-47.9 cm for a baby boy. Likewise, baby girls, of course, have an enlarged head circle size, namely 41.5-46.9 cm at the age of 10 months.

After a month after that, when the baby is 11 months old, the measurement of normal head circumference in male babies will show a number in the range of 43.2-48.3 cm. Meanwhile, for women, the head circumference at 11 months ranged from 41.9 to 47.3 cm.

Finally arrived at the age of 1 year old baby. At this age, the normal growth in the size of the baby's head circumference for boys is around 43.5-48.6 cm, and 42.2-47.6 cm for female babies.

Recognize failure to thrive in babies

Failure to thrive or failure to thrive is stunted or cessation of a child's physical growth, so that it looks abnormal.

Children are most likely to experience failure to thrive, when changes in weight and height are not equal or far from their peers.

Failure to thrive is not actually a special disease, but a condition in which the development of weight and height is far from the normal average.

Lack of adequate daily nutritional needs can cause children to experience growth failure.

Can be said, failure to thrive can occur because the child does not receive, store, or use the nutritional needs that should be. In fact, these nutrients are needed to help the baby's growth and development

In addition, various other health problems can also cause growth failure in babies, such as:

• Disorders of genes, such as Down syndrome
• Organ disorders
• Hormonal disorders
• Problems with the brain or central nervous system
• Heart or lung problems
• Anemia and other blood disorders
• Problems in the digestive system, making it difficult to absorb nutrients
• Long-term infection
• Problems with the body's metabolism
• Low birth weight (LBW)

But keep in mind that the growth of each baby is different, for more details, consult your pediatrician regularly.

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