What are the height and weight standards for three-year-olds?

We all know that children are constantly developing as they grow, so their height and weight will continue to change. However, for children of a certain age group, there are some indicators that can be used to judge. If the child develops slowly, he or she can receive treatment as soon as possible. You can calculate according to the formula. Next, we will introduce to you in detail the height and weight standards for three-year-olds.

Standard measurement formula for baby's weight: Weight (kg) at 1-6 months = birth weight (or 3 kg) + age in months × 0.6 (kg); Weight (kg) at 7-12 months = birth weight (or 3 kg) + age in months × 0.5 (kg); Weight (kg) at 2-10 years old = age × 2 + 7 (or 8).

The standard growth pattern of baby's height: the average height of a full-term baby is 50 cm. It increases by about 25 cm in the first year after birth, so it is about 75 cm at one year old. Thereafter, it increases by an average of about 5 cm each year. Therefore, the height (cm) of a child aged 2-12 years old = age × 5 + 75 (cm). Anyone whose height exceeds the standard by 10% or is less than 10% is considered abnormal.

Standard calculation formula for baby's head circumference: The size of the head circumference is closely related to the development of the brain, and head circumference measurement can be used as one of the indicators of children's intellectual development. The calculation formula is: head circumference = body length (cm) * 4/10 + 15

The new standards are the result of an intensive study begun by WHO in 1997 to develop new international standards for assessing physical growth, nutritional status and motor development in all infants from birth to 5 years of age, involving more than 8,000 children. The new standards are based on breastfed children as the norm for growth and development.

These standards include normal parameters for weight and height for infants of different ages, weight standards relative to different heights, and a series of standards for infants at important developmental stages such as sitting, standing, and walking.

WHO weight standard for girls (kg) WHO height standard for girls (cm)

Newborn 3.2 Newborn 49.0

1 year old 9.0 1 year old 74.0

2 years old 11.5 2 years old 86.0

3 years old 13.9 3 years old 95.0

4 years old 16.0 4 years old 103.0

5 years old 18.2 5 years old 109.0

WHO boys' weight standard (kg) WHO boys' height standard (cm)

Newborn 3.4 Newborn 50.0

1 year old 9.6 1 year old 76.0

2 years old 12.1 2 years old 87.0

3 years old 14.3 3 years old 96.0

The above content is an introduction to the height and weight standards for three-year-olds. In real life, children may have certain differences from the data due to their own reasons. At this time, parents should not be anxious, but make a judgment first. If the child’s problem is more serious, they can go to a regular hospital for a physical examination.