In the joined States, the median baby weighs around 7 pounds 3 ounces (3.3 kg) in ~ birth. Where does her baby loss on the expansion charts and also what wake up next? This post covers average height and weight for children from birth to age 8, determinants that influence growth, and what development percentiles mean.

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Lots of parents wonder even if it is their child is bigger or smaller sized than other youngsters their age. The charts below give you an idea of just how your child"s weight and height (length for babies) compare to the mean weight and also height of kids in their period group.

The number in these charts are simply a benchmark. It"s most likely your child"s weight and also height is higher or lower than the average. If so, don"t worry – that doesn"t average there"s noþeles wrong v your child.

Children thrive at different rates, and it"s normal for weight and height to differ significantly between kids of the same age. What"s an ext important is that your child is growing steadily.

Your child"s healthcare provider will certainly weigh and measure him during each well-child visit come make sure his development is top top track. (If your kid is 24 months old or younger, she"ll likewise measure her baby"s head circumference, which provides information around his cultivation brain). Be certain to talk through the medical professional if friend have any kind of concerns about your child"s growth.

For much more personalized information about how her child"s size compares to other children"s, and also to track her child"s height and also weight over time, check out our child expansion chart calculator.

Here"s much more information about growth charts and understanding the results.

Average infant weight and also length chart by month

In the united States, the mean baby weighs about 7 pounds 3 ounces (3.3 kg) in ~ birth. Girls (at 7 pounds, 1 ounce/3.2 kg) space a little smaller 보다 boys (at 7 pounds 4 ounces/3.3 kg) ~ above arrival. The typical newborn is 19 1/2 customs (49.5 cm) long, with girls measuring 19 inch (49 cm) and also boys measure up 19 3/4 inch (50 cm).

While most babies (both formula and breastfed) lose weight during the first couple of days the life, in ~ a couple of main they"re back to their birth weight. Till 3 months of age, many babies gain about an ounce each day. By period 4 months, many infants have doubled their birth weight, and by 1 year, most have tripled it. Most babies also grow around 10 customs (25 cm) by their an initial birthday.

Keep in mind that babies and also children have development spurts, also – which method that growth isn"t constantly a gradual, predictable process. Just when you begin to wonder whether her child has actually grown enough lately, he may climb the charts!

The data in the charts listed below comes native the civilization Health organization for youngsters younger 보다 2, and the U.S. Centers for disease Control and also Prevention for kids age 2 and older.

Quick tip: for babies born prematurely, use gestational age (not age because birth) as soon as you watch up their numbers in this chart. You can likewise find growth charts specifically for preterm babies here. If you have a special-needs child, your physician may give you a different chart.

AgeSizeBoysGirls
BirthWeight7 lb 4 oz (3.3 kg)7 lb 1oz (3.2 kg)
Length19 3/4 inches (49.9 cm)19 1/4 customs (49.1 cm)
1 monthWeight9 lb 15 oz (4.5 kg)9 lb 4 oz (4.2 kg)
Length21 1/2 in (54.7 cm)21 in (53.7 cm)
2 monthsWeight12 lb 6 oz (5.6 kg)11 lb 4 oz (5.1 kg)
Length22 3/4 in (57.9 cm)22 1/2 in (57.1 cm)
3 monthsWeight14 lb 2 oz (6.4 kg)12 lb 13 oz (5.8 kg)
Length24 in (60.8 cm)23 1/2 in (59.8 cm)
4 monthsWeight15 lb 7 oz (7 kg)14 lb 2 oz (6.4 kg)
Length25 1/4 in (63.9 cm)24 1/2 in (62.1 cm)
5 monthsWeight16 lb 9 oz (7.5 kg)15 lb 3 oz (6.9 kg)
Length26 in (65.9 cm)25 1/4 in (64 cm)
6 monthsWeight17 lb 7 oz (7.9 kg)16 lb 2 oz (7.3 kg)
Length26 1/2 in (67.6 cm)26 in (65.7 cm)
7 monthsWeight18 lb 5 oz (8.3 kg)16 lb 12 oz (7.6 kg)
Length27 1/4 in (69.2 cm)26 1/2 in (67.3 cm)
8 monthsWeight18 lb 15 oz (8.6 kg)17 lb 7 oz (7.9 kg)
Length27 3/4 in (70.6 cm)27 in (68.7 cm)
9 monthsWeight19 lb 10 oz (8.9 kg)18 lb 2 oz (8.2 kg)
Length28 1/4 in (72 cm)27 1/2 in (70.1 cm)
10 monthsWeight20 lb 5 oz (9.2 kg)18 lb 12 oz (8.5 kg)
Length29 in (73.3 cm)28 1/4 in (71.5 cm)
11 monthsWeight20 lb 12 oz (9.4 kg)19 lb 3 oz (8.7 kg)
Length29 1/4 in (74.5 cm)28 3/4 in (72.8 cm)

Want much more information about how babies grow and develop prior to age 1? discover out around your baby"s developmental milestones and how much your baby will prosper in the very first year. Girlfriend can also check whether your newborn"s weight obtain is healthy and balanced or not.


Typical toddler weights and also heights

Between 12 and 24 months, many toddlers grow about 4 or 5 customs (10 come 12 cm) and also gain around 5 pounds (2.27 kg). Your little one will start looking much more like a kid than a baby as he starts come slim under a bit and also become much more muscular.

AgeSizeBoysGirls
12 monthsWeight21 lb 3 oz (9.6 kg)19 lb 10 oz (8.9 kg)
Height30 in (75.7 cm)29 in (74 cm)
15 monthsWeight22 lb 11 oz (10.3 kg)21 lb 3 oz (9.6 kg)
Height31 in (79.1 cm)30 1/2 in (77.5 cm)
18 monthsWeight24 lb 1 oz (10.9 kg)22 lb 8 oz (10.2 kg)
Height32 1/2 in (82.3 cm)31 3/4 in (80.7 cm)
21 monthsWeight25 lb 6 oz (11.5 kg)24 lb 1 oz (10.9 kg)
Height33 1/2 in (85.1 cm)33 in (83.7 cm)
22 monthsWeight26 lb (11.8 kg)24 lb 8 oz (11.1 kg)
Height34 in (86 cm)33 1/4 in (84.6 cm)
23 monthsWeight26 lb 7 oz (12 kg)24 lb 15 oz (11.3 kg)
Height34 1/4 in (86.9 cm)33 1/2 in (85.5 cm)

Preschoolerweight and also height chart

Most youngsters gain about 4.4 pounds every year between the eras of 2 years and also puberty. They additionally grow 3 inches (8 cm) in height in between 2 and 3 year old, and also 2 3/4 customs (7 cm) between 3 and also 4 year old. You could not think it to look at them, but by 24 to 30 months, children reach half their adult height.

AgeSizeBoysGirls
2 yearsWeight28 lb (12.7 kg)26 lb 11 oz (12.1 kg)
Height2 ft 11 in (87.7 cm)2 ft 10 in (86.2 cm)
2½ yearsWeight30 pounds (13.6 kg)28 lb 11 oz (13 kg)
Height3 ft (92.1cm)3 ft (91.1 cm)
3 yearsWeight31 lb 12oz (14.4 kg)30 lb 10 oz (13.9 kg)
Height3 ft 2 in (95.3 cm)3 ft 1 in (94.2 cm)
3½ yearsWeight33 lb 12 oz (15.3 kg)32 lb 14 oz (14.9 kg)
Height3 ft 3 in (99 cm)3 ft 2 in (97.6 cm)
4 yearsWeight35 lb 15 oz (16.3 kg)35 lb 1 oz (15.9 kg)
Height3 ft 4 in (102.5 cm)3 ft 4 in (101 cm)
4½ yearsWeight38 lb 6 oz (17.4 kg)37 lb 4 oz (16.9 kg)
Height3 ft 6 in (105.9 cm)3 ft 5 in (104.5 cm)

Big kidweight and height averages

Between the ages of 5 and 8 years, youngsters grow about 2 come 3 inch (5 come 8 cm) every year. They additionally gain between 4 and also 7 pounds (2-3 kg) every year in between the ages of 6 and puberty.

AgeSizeBoysGirls
5 yearsWeight40 lb 13 oz (18.5 kg)39 lb 11 oz (18 kg)
Height3 ft 7 in (109.2 cm)3 ft 7 in (108 cm)
6 yearsWeight45 lb 14 oz (20.8 kg)44 lb 12 oz (20.3 kg)
Height3 ft 10 in (115.7 cm)3 ft 9 in (115 cm)
7 yearsWeight51 lb 2 oz (23.2 kg)50 lb 8 oz (22.9 kg)
Height4 ft (122 cm)4 ft (121.8 cm)
8 yearsWeight56 lb 14 oz (25.8 kg)56 lb 14 oz (25.8 kg)
Height4 ft 2 in (128.1 cm)4 ft 2 in (127.8 cm)

What components can influence my child"s weight and also height?

Your child"s genes space the biggest variable determining just how tall he"ll get and also how hefty he"ll be. But there are various other factors, too:

Gender: infant girls are typically a small smaller (length and weight) at birth than baby boys.Hormones. If your child has actually a hormone imbalance, such together low expansion hormone level or a low thyroid level, it can slow his growth.Medications. particular medications, such as regular use the corticosteroids, could slow growth.

What do development chart percentiles mean?

Growth charts give you a basic idea of exactly how your son is growing. They usage percentiles come compare your baby"s development to various other babies the the very same age and also sex.

The charts below show the height and weight (or length, because that babies) for kids of both genders in the 50th percentile, which is the average. Anything higher means your son is bigger than average. Noþeles lower way he is smaller than average.

For example, if your 2-month-old daughter weighs 13 pounds, she is heavier than average. If she is 20 inches long, she is smaller sized than average.

Your medical professional will typically calculate your child"s weight and also height together a percentile. If your son is in the 75th percentile for weight, for example, that method 74 percent of children her age and gender weigh less, and 24 percent weigh more.

Doctors commonly use different growth charts relying on your child"s age. Youngsters younger than 2 are measured utilizing charts indigenous the world Health organization (WHO), i beg your pardon are based on healthy development patterns for breastfed children and endorsed through the Centers for an illness Control and Prevention (CDC) and also the American Academy of Pediatrics. When your child turns 2, your physician will more than likely use the CDC"s expansion charts.

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Learn more:

What growth chart numbers yes, really mean

Child development Chart Calculator

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Failure to get weight

Helping one overweight child

Chart: median fetal length and also weight

Do breastfed babies grow an ext slowly in ~ first?

I"m concerned my baby"s as well fat

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CDC. 2020. CDC development Charts. Centers for an illness Control and also Prevention. Https://www.cdc.gov/growthcharts/cdc_charts.htm

CDC. 2013. Use and interpretation of the WHO and also CDC development charts for children from birth to 20 years in the unified States. Centers for disease Control and Prevention. Https://www.cdc.gov/nccdphp/dnpa/growthcharts/resources/growthchart.pdf

HealthyChildren.org. 2015. Just how to check out a growth chart: Percentiles explained. Https://www.healthychildren.org/English/health-issues/conditions/Glands-Growth-Disorders/Pages/Growth-Charts-By-the-Numbers.aspx

WHO. 2006. Who child growth standards. People Health Organization. Https://www.who.int/childgrowth/standards/Technical_report.pdf