Standard measurement formula for infant weight: weight (kg) at 1-6 months = birth weight (or 3 kg) + age × 0.6 (kg) 7-December weight (kg) = birth weight (or 3 kg) + age × 0.

2025/04/1215:45:36 baby 1767

Standard measurement formula for infant weight:

1-6 months weight (kg) = birth weight (or 3 kg) + age × 0.6 (kg)

7-December weight (kg) = birth weight (or 3 kg) + age × 0.5 (kg)

2-10 years weight (kg) = age × 2+7 (or 8)

Infant and young children's height standard growth pattern:

Full-term length averages 50 cm, and the first year after birth is about 25 cm, so it is about 75 cm at one year; it will increase by about 5 cm per year after the age of 2-12, so the length of children (cm) = age × 5+75 (cm). Anyone with a height exceeding 10% or less than 10% is considered abnormal. A specific maternal and child health hospital can conduct an assessment and consult a doctor.

Baby height and weight measurement method

Weight measurement

Newborn is born in the hospital and has a professional doctor to measure it. After that, it can be measured during physical examinations, or it can be measured regularly at home. Pay attention to the following details when measuring:

1. You can weigh directly in summer. Before weighing, you must take off your baby's coat, shoes, socks and hat.

2. If measured in winter, in order to prevent the baby from catching a cold, the baby can first wear clothes and weigh them, and then estimate the weight of the clothes and subtract its value.

3. It is best to measure it when the baby is on an empty stomach, and it is best to measure it after defecation.

Baby height measurement

Measure the height of the baby, it is best to do it by two people. One person uses his hands to fix the baby's knee, hip and head, and the other uses a tape measure to measure it from the highest point on the top of the baby's head to the highest point on the foot. The measured value is the baby's height.

Props: Two heavy, hard to move books (such as dictionaries) and a tape measure.

Method: When the baby is sleeping, gently press a book against the baby's head; then straighten the baby's body, while pressing the baby with one hand, press the other book behind the baby's soles with the other hand; finally, after both books are firmly held, gently move the baby away. At this time, the distance between the two books is the baby's height.

Reminder: There is no need to measure the height of the baby every day, just measure it once every two or three weeks.

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