What is the average newborn weight and length?
Table of Contents
In the United States, the average baby weighs just over 7 pounds at birth. Girls (at 7 pounds, 1 ounce/3.2 kg) are a bit smaller than boys (at 7 pounds 8 ounces/3.4 kg) on arrival. The average newborn is 19 1/2 inches (49.5 cm) long, with girls measuring 19.4 inches (49.2 cm) and boys measuring 19.7 inches (49.9 cm).
What is the average newborn length?

It’s the same as their height, but height is measured standing up, whereas length is measured while your baby is lying down. The average length at birth for a full-term baby is 19 to 20 inches (about 50 cm). But the range for most newborns is between 18 and 22 inches (45.7 to 60 cm).
Does birth length indicate height?
Birth weight and length are positively associated with later height from infancy to adulthood. Both genetic and individual-specific environmental factors influence the association between birth size and later height.
How much should a normal newborn baby weigh?
Birth Weight The World Health Organization has established standards for infant and child growth. 1 The average weight of a newborn is around 7 to 7 1/2 pounds (3.2 to 3.4 kg). Most full-term healthy newborns weigh anywhere from 5 pounds 11 ounces to 8 pounds 6 ounces (2.6 to 3.8 kg).

Is 17 inches short for a newborn?
The average length for newborns is between 19 and 20 inches long – to be exact, 19 inches for female babies and 19.75 inches for male babies. That said, healthcare providers consider a newborn length anywhere between 18.5 and 20.9 inches to be normal for full-term babies.
What is considered a long baby?
Babies come in all shapes and sizes More than 9 out of 10 babies born at term (37 to 40 weeks) weigh between 2.5kg and 4.5kg. If your baby weighs 4.5kg or more at birth, they are considered larger than normal. This is also known as ‘fetal macrosomia’ and large for gestational age (LGA).
Is 57cm long for a newborn?
The average length of a full-term newborn baby is 19–20 inches (in) , or 48.2–50.8 centimeters (cm)….Average baby sizes through the first year.
Age | Male baby | Female baby |
---|---|---|
2 months | 23.03 in (58.5 cm) | 22.44 in (57 cm) |
3 months | 24.21 in (61.5 cm) | 23.62 in (60 cm) |
Does baby’s length predict future height?
The increase in adult weight per relative birth weight category was greatest for infants who were both heavy and long at birth. Conclusions: Birth length is perhaps a better predictor of adult height and weight than birth weight, and should be considered as a possible risk factor for adult morbidity and mortality.
How much do 1 month olds weigh?
The average one-month-old baby weight is 9.2 pounds for girls and 9.9 pounds for boys, according to the World Health Organization. Of course, if baby weighs or measures much more or much less than the average, it doesn’t mean there’s a problem. Babies—just like adults—come in different shapes and sizes.
What should a 2 month baby weigh?
The average weight of a 2-month-old baby girl is 11.3 pounds; the average baby boy at 2 months weighs in at 12.3 pounds. Height averages are 22.5 inches for girls and 23 inches for boys.
Is a 20 inch baby long?
The average length of a full-term newborn baby is 19–20 inches (in) , or 48.2–50.8 centimeters (cm). However, a length of around 18.5–20.9 in, or 47–53 cm, is also typical. Male babies are slightly longer than female babies. Doctors measure a baby’s length from the top of their head to the heel of their foot.
How do you know if your child will be tall?
Here’s a popular example: Add the mother’s height to the father’s height in either inches or centimeters. Add 5 inches (13 centimeters) for boys or subtract 5 inches (13 centimeters) for girls.