Weight percentile chart for boys
Child height predictor: How tall your child will be
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Curious to find out how tall your child will be when they grow up? We can't see the future, but with a little math and science, we can make a pretty good guess about how tall they'll be when they're 18 – with a margin of error under 2 inches.
This calculator works for children age 2 and up. (Depending on your child's age, we'll use some or all of the information you entered in our calculations.) You may get inaccurate results for children who are exceptionally tall or are already taller than both their parents.
The Height Predictor is meant to be a fun tool, and doesn't guarantee your child will be this height when they grow up. If you're concerned about your child's growth, talk to their healthcare provider.
How to tell how tall your child will be
There are a few different methods of predicting how tall your child will be when they grow up. Our Child Height Predictor tool uses the Khamis-Roche method, which is based on a study conducted in the 1990s with about 400 participants.
The method takes a child's height, weight, and the average height of their parents, then uses ratios to determine how to calculate the child's predicted height at age 18. A previous method also used the child's skeletal age, which is how mature a child's bones are and requires an X-ray. But the Khamis-Roche researchers wanted to find a way parents could predict their child's height without having to get an X-ray taken.
If you want to test out other ways to predict your child's height at home, these are a couple methods you can try:
Two years times two
Children grow a ton in their first few years of life – in fact, their first growth spurt from baby to toddler accounts for about half of their adult height. One simple way to predict how tall your child will be when they grow up is to take their height at age 2 if they're a boy or 18 months if they're a girl and double it.
(Girls grow a little faster than boys.)
This method has been around for a long time, but there isn't any scientific research about how accurate it is.
Mid-parental method
Another way to estimate your child's adult height is to add together the height of both parents and divide it by two.
Then, some methods say to add 5 inches if they're a boy and subtract 5 inches if they're a girl; others say to only add or subtract 2 ½ inches. There's a high margin of error with this method – it could be off by 4 inches.
Rebekah Wahlberg
Rebekah Wahlberg is an associate editor at BabyCenter, the world's number one digital parenting resource. She lives in Southern California with her silly dog Booger, where she enjoys hiking, yoga, and watching Netflix when she "should" be reading. Wahlberg is passionate about creating content that helps parents and parents-to-be equip themselves with everything they need to succeed.
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Height and weight chart from newborn to 8 years: Average child and baby weight by age
In the United States, the average baby weighs just over 7 pounds (3 kg) at birth.
Where does your child fall on the growth charts and what happens next? This article covers average height and weight for kids from birth to age 8, factors that affect growth, and what growth percentiles mean.
Lots of parents wonder whether their child is bigger or smaller than other kids their age. The charts below give you an idea of how your child's weight and height (or length, for babies) compare to the average weight and height of kids in their age group.
The numbers in these charts are just a benchmark. It's likely your child's weight and height are higher or lower than the average. If so, don't worry – it doesn't mean there's anything wrong.
Children grow at different rates, and it's normal for weight and height to vary significantly between kids of the same age. What's more important is that your child is growing steadily.
The doctor will weigh and measure your child during each well-child visit to make sure their growth is on track. (They'll also measure your baby's head circumference, which provides information about their growing brain).
Be sure to talk with the doctor if you have any concerns about your child's growth.
For more, personalized information about how your child compares to other children in size, and to track your child's height and weight over time, check out our child height and weight tracker.
Average baby weight and length chart by month
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).
While most babies lose weight during the first few days of life, within a couple of weeks they're back to their birth weight. Until 3 months old, most babies gain about an ounce each day. By 4 months old, most babies have doubled their birth weight, and by 1 year, most have tripled it. Most babies also grow about 10 inches (25 cm) by their first birthday.
Keep in mind that babies and children have growth spurts, too – which means that growth isn't always a gradual, predictable process. Just when you start to wonder whether your child has grown enough lately, they may climb the charts!
The data in the charts below comes from the World Health Organization (WHO) for children younger than 2 and the U.S. Centers for Disease Control and Prevention (CDC) for children age 2 and older.
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The CDC recommends that healthcare providers use the WHO growth charts to monitor growth for infants and children ages 0 to 2 years, and use the CDC growth charts for those 2 years and older. The WHO charts are based on healthy growth patterns for breastfed children and are endorsed by the CDC and the American Academy of Pediatrics.
Quick tip: For babies born prematurely, use their adjusted age rather than chronological age when you look up their numbers on this chart. (Adjusted age is the age your baby would be if they had been born full term.
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| Age | Size | Boys | Girls |
|---|---|---|---|
| Birth | Weight | 7 lb 8 oz (3.4 kg) | 7 lb 1oz (3.2 kg) |
| Length | 19.7 inches (49.9 cm) | 19.4 inches (49.2 cm) | |
| 1 month | Weight | 9 lb 15 oz (4.5 kg) | 9 lb 4 oz (4.2 kg) |
| Length | 21.5 in (54.7 cm) | 21.1 in (53.7 cm) | |
| 2 months | Weight | 12 lb 6 oz (5.6 kg) | 11 lb 4 oz (5.1 kg) |
| Length | 23 in (58.4 cm) | 22.5 in (57.1 cm) | |
| 3 months | Weight | 14 lb 2 oz (6. 4 kg) | 13 lb (5.9 kg) |
| Length | 24.2 in (61.4 cm) | 23.5 in (59.8 cm) | |
| 4 months | Weight | 15 lb 7 oz (7 kg) | 14 lb 2 oz (6.4 kg) |
| Length | 25.2 in (63.9 cm) | 24.5 in (62.1 cm) | |
| 5 months | Weight | 16 lb 9 oz (7.5 kg) | 15 lb 3 oz (6.9 kg) |
| Length | 26 in (65.9 cm) | 25.2 in (64 cm) | |
| 6 months | Weight | 17 lb 7 oz (7.9 kg) | 16 lb 2 oz (7.3 kg) |
| Length | 26.6 in (67.6 cm) | 25.9 in (65.7 cm) | |
| 7 months | Weight | 18 lb 5 oz (8. 3 kg) | 16 lb 12 oz (7.6 kg) |
| Length | 27.2 in (69.2 cm) | 26.5 in (67.3 cm) | |
| 8 months | Weight | 18 lb 15 oz (8.6 kg) | 17 lb 10 oz (8 kg) |
| Length | 27.8 in (70.6 cm) | 27.1 in (68.8 cm) | |
| 9 months | Weight | 19 lb 10 oz (8.9 kg) | 18 lb 1 oz (8.2 kg) |
| Length | 28.4 in (72 cm) | 27.6 in (70.1 cm) | |
| 10 months | Weight | 20 lb 5 oz (9.2 kg) | 18 lb 12 oz (8.5 kg) |
| Length | 28.9 in (73.3 cm) | 28.2 in (71.5 cm) | |
| 11 months | Weight | 20 lb 12 oz (9. 4 kg) | 19 lb 3 oz (8.7 kg) |
| Length | 29.3 in (74.5 cm) | 28.7 in (72.8 cm) | |
Want more information about how babies grow and develop before age 1? Find out about your baby's developmental milestones and how much your baby will grow in the first year. You can also check whether your newborn's weight gain is healthy or not.
Typical toddler weights and heights
Between 12 and 24 months, most toddlers grow about 4 or 5 inches (10 to 12 cm) and gain about 5 pounds (2.27 kg). Your little one will start looking more like a child than a baby as they start to slim down a bit and become more muscular.
| Age | Size | Boys | Girls |
|---|---|---|---|
| 12 months | Weight | 21 lb 6 oz (9.7 kg) | 19 lb 14 oz (9 kg) |
| Height | 29. | 29.1 in (74 cm) | |
| 13 months | Weight | 21 lb 13 oz (9.9 kg) | 20 lb 5 oz (9.2 kg) |
| Height | 30.3 in (76.9) cm | 29.6 in (75.2cm) | |
| 14 months | Weight | 22 lb 4 oz (10.1 kg) | 20 lb 12 oz (9.4 kg) |
| Height | 30.8 in (78.1 cm) | 30.1 in (76.4 cm) | |
| 15 months | Weight | 22 lb 11 oz (10.3 kg) | 21 lb 3 oz (9.6 kg) |
| Height | 31.2 in (79.2 cm) | 30.5 in (77.5 cm) | |
| 16 months | Weight | 23 lb 2 oz (10. | 21 lb 10 oz (9.8 kg) |
| Height | 31.6 in (80.2 cm) | 31 in (78.6 cm) | |
| 17 months | Weight | 23 lb 9 oz (10.7 kg) | 22 lb 1 oz (10 kg) |
| Height | 32 in (81.3 cm) | 31.4 in (79.7 cm) | |
| 18 months | Weight | 24 lb 1 oz (10.9 kg) | 22 lb 8 oz (10.2 kg) |
| Height | 32.4 in (82.3 cm) | 31.8 in (80.7 cm) | |
| 19 months | Weight | 24 lb 8 oz (11.1 kg) | 22 lb 15 oz (10.4 kg) |
| Height | 32.8 in (83. | 32.2 in (81.7 cm) | |
| 20 months | Weight | 25 lb 2 oz (11.4 kg) | 23 lb 9 oz (10.7 kg) |
| Height | 33.2 in (84.2 cm) | 32.6 in (82.7 cm) | |
| 21 months | Weight | 25 lb 9 oz (11.6 kg) | 24 lb 1 oz (10.9 kg) |
| Height | 33.5 in (85.1 cm) | 33 in (83.7 cm) | |
| 22 months | Weight | 26 lb (11.8 kg) | 24 lb 8 oz (11.1 kg) |
| Height | 33.9 in (86.1 cm) | 33.3 in (84.6 cm) | |
| 23 months | Weight | 26 lb 7 oz (12 kg) | 24 lb 15 oz (11. 3 kg) |
| Height | 34.2 in (86.9 cm) | 33.7 in (85.5 cm) | |
8 in (75.8 cm)
5 kg)
2 cm)Preschooler weight and height chart
Most children gain about 4.4 pounds each year between 2 years old and puberty. They also grow 3 inches (8 cm) in height between 2 and 3 years old, and 2 3/4 inches (7 cm) between 3 and 4 years old. You might have trouble visualizing it, but by 24 to 30 months, children reach half their adult height.
| Age | Size | Boys | Girls |
|---|---|---|---|
| 2 years | Weight | 28 lb (12.7 kg) | 26 lb 11 oz (12.1 kg) |
| Height | 2 ft 10 in (86.5 cm) | 2 ft 9.5 in (85 cm) | |
| 2.5 years | Weight | 30 pounds (13.6 kg) | 28 lb 11 oz (13 kg) |
| Height | 3 ft (91. 3 cm) | 2 ft 11.5 in (90.3 cm) | |
| 3 years | Weight | 31 lb 12oz (14.4 kg) | 30 lb 10 oz (13.9 kg) |
| Height | 3 ft 1.5 in (95.3 cm) | 3 ft 1 in (94.2 cm) | |
| 3.5 years | Weight | 33 lb 12 oz (15.3 kg) | 32 lb 14 oz (14.9 kg) |
| Height | 3 ft 3 in (99 cm) | 3 ft 2.5 in (97.7 cm) | |
| 4 years | Weight | 35 lb 15 oz (16.3 kg) | 35 lb 1 oz (15.9 kg) |
| Height | 3 ft 4.5 in (102.5 cm) | 3 ft 4 in (101 cm) | |
| 4.5 years | Weight | 38 lb 6 oz (17. 4 kg) | 37 lb 4 oz (16.9 kg) |
| Height | 3 ft 5.5 in (105.9 cm) | 3 ft 5 in (104.5 cm) | |
Big kid weight and height averages
Between the ages of 5 and 8 years, children grow about 2 to 3 inches (5 to 8 cm) per year. They also gain between 4 and 7 pounds (2 to 3 kg) per year between the ages of 6 and puberty.
| Age | Size | Boys | Girls |
|---|---|---|---|
| 5 years | Weight | 40 lb 13 oz (18.5 kg) | 39 lb 11 oz (18 kg) |
| Height | 3 ft 7 in (109.2 cm) | 3 ft 6.5 in (108 cm) | |
| 6 years | Weight | 45 lb 14 oz (20.8 kg) | 44 lb 12 oz (20.3 kg) |
| Height | 3 ft 9. 5 in (115.7 cm) | 3 ft 9 in (115 cm) | |
| 7 years | Weight | 51 lb 2 oz (23.2 kg) | 50 lb 8 oz (22.9 kg) |
| Height | 4 ft (122 cm) | 4 ft (121.8 cm) | |
| 8 years | Weight | 56 lb 14 oz (25.8 kg) | 56 lb 14 oz (25.8 kg) |
| Height | 4 ft 2.5 in (128.1 cm) | 4 ft 2.5 in (127.8 cm) | |
What factors can affect my child's weight and height?
Your child's genes are the biggest factor determining how tall they'll get and how heavy they'll be. But there are other factors, too:
- Gestation. If your baby arrived after their due date, they may be larger than average, and if they were born prematurely, they'll probably be smaller.
(Because multiples are typically born early, they tend to be smaller, too.) - Your pregnancy health. If you smoked, used drugs, or didn't eat well during pregnancy, you're more likely to give birth to a smaller baby. If you gained a great deal of weight during pregnancy or had gestational diabetes, you're more likely to give birth to a larger baby.
- Sex: Baby girls are typically a little smaller (length and weight) at birth than baby boys.
- Breastfed or formula fed. In their first year, breastfed babies gain weight more slowly than formula-fed babies. (For the first few months, the breastfed babies actually grow more quickly, but by 3 months old this changes.) By age 2, breastfed and formula-fed babies weigh about the same.
- Hormones. If your child has a hormone imbalance, such as low growth hormone levels or a low thyroid level, it could slow their growth.
- Medications.
Certain medications, such as regular use of corticosteroids, might slow growth. - Health issues. If your child has a chronic illness (such as cancer, kidney disease, or cystic fibrosis), or any disorder affecting their ability to eat or absorb nutrients (such as gastrointestinal problems), their growth might be slowed.
- Genetic conditions. Your child's general genetic makeup affects their growth. So could having certain genetic conditions – such as Down syndrome, Noonan syndrome, or Turner syndrome.
- Sleep. Growth spurts in babies are related to increases in sleep. One study found that getting more sleep directly increases a baby's probability of growing more in length. In fact, growth spurts occurred within 48 hours after added sleep.
What do growth chart percentiles mean?
Baby growth charts give you a general idea of how your child is growing. They use percentiles to compare your baby's growth to other babies of the same age and sex.
The charts show the height and weight (or length, for babies) for children of both sexes in the 50th percentile, which is the average. Anything higher means your child is larger than average. Anything lower means they're smaller than average.
For example, the average weight for a 2-month-old girl is 11 pounds 4 ounces. If your 2-month-old daughter weighs 13 pounds, she's heavier than average. The average length is 22.5 inches, so if your daughter is 20 inches long at 2 months, she's shorter than average.
Your doctor will normally calculate your child's weight and height as a percentile. If your child is in the 75th percentile for weight, for example, that means 75 percent of children their age and sex weigh less, and 25 percent weigh more.
Your child's chart numbers can provide their doctor with valuable information at each well-child visit. The doctor will be looking to see that your child's growing appropriately, that there aren't dramatic changes (from the 75th percentile to the 25th percentile, for example), and that your child's numbers are in an appropriate range for their age.
If one of your child's measurements is below the 10th percentile or above the 90th percentile, their doctor may want to determine why and monitor your child's growth carefully. In general, though, your child's growth pattern over time is more important than where they fall on the chart in terms of percentages.
Learn more:
- Try our child height predictor
- The best way to measure your child
- Failure to gain weight in babies
- Failure to gain weight in children
- Helping an overweight child
- Chart: Average fetal length and weight
Tables of weight and height of the child by months and by years. For boys and for girls.
The height and weight of a child are the main indicators of his physical development. That is why immediately after the birth of the baby, it is imperative to measure the weight of his body and the length of the body and continue to weigh himself daily at the same time until discharge from the hospital.
There are many factors that affect the physical development of a child, for example:0010
How to understand what is the norm?
The All-Russian Health Organization recommended special tables for matching the height and weight of children, or as they are called, centile tables. At each examination, the pediatrician measures the height and weight of the child, compares the obtained values \u200b\u200bwith the standard indicators. Such tables allow you to identify obvious pathologies, for a more accurate analysis, the doctor calculates additional indicators using special formulas.
Monthly infant weight and height chart (up to 1 year)
The table shows the average height and weight of infants (under 1 year of age) by month for boys and girls.
| Age | Girls | Boys | ||||||
| , kg | 9000 9000, KG, KG | 9000 9000, KG, KG 9000 9000, KG, KG 9,000|||||||
| Newborns | 3.33 ± 0.44 | 49.50 ± 1.63 | 3.53 ± 0.45 | 50.43 ± 1.89 | 1 month | 4.15 ± 0.54 | 53.51 ± 2.13 | 4.32 ± 0.64 | 54.53 ± 2.32 |
| 2 months | 5.01 ± 0.56 | 56.95 ± 2.18 | 5 .29 ± 0.76 | 57.71 ± 2.48 | ||||
| 3 months | 6.07 ± 0.58 | 60.29 ± 2.08 903 | 61.30 ± 2.41 | |||||
| 4 months | 6. 55 ± 0.79 | 62.15 ± 2.49 | 6.87 ± 0.74 | 63.79 ± 2.68 | ||||
| 9000 3 months | 7.38 ± 0.96 | 63.98 ± 2.49 | 7.82 ± 0.80 | 66.92 ± 1.99 | ||||
| 6 months | 7.97 ± 0.92 | 66.60 ± 2.44 | 8.77 ± 0.78 | 67.995 ± 2.24 80049 7 months | 8.25 ± 0.95 | 67.44 ± 2.64 | 8.92 ± 1.11 | 69.56 ± 2.61 |
| 9000 3 months 9000 | 8.35 ± 1.10 | 69.84 ± 2.07 | 9.46 ± 0.98 | 71.17 ± 2.24 | ||||
| 9000 9 months | 9.28 ± 1 .01 | 70.69 ± 2.21 | 9.89 ± 1.18 | 72.84 ± 2.71 | ||||
| 10 months | 9.52 ± 1.3572.11 ± 2.86 | 10.35 ± 1.12 | 73.91 ± 2.65 | |||||
| 11 months | 9. 80 ± 0, 0, 80 | 73.60 ± 2.73 | 10.47 ± 0.98 | 74.90 ± 2.55 | ||||
| 10.04 ± 1.16 | 74.78 ± 2.54 | 10.66 ± 1.21 | 75.78 ± 2.79 | |||||
Table of weight and height of the child by years (from 1 to 18 years)
weight of the child by years aged 1 to 18 years for boys and girls.
| Age | Girls | Boys | |||||
| , kg | | 9000 9000, KG, KG | 9000 9000, KG, KG | 9000 9000, KG, KG 9000, KG |||||
| 1 year 3 months | 10.52 ± 1.27 | 76.97 ± 3.00 | 11.40 ± 1.30 | 79.45 ± 3.56 | |||
| 1 year 6 months | 11. 40 ± 1.12 | 80.80 ± 2.98 | 11.80 ± 1.18 | 81.73 ± 3.34 | |||
| 9000. 1 year | 12.27 ± 1.37 | 83.75 ± 3.57 | 12.67 ± 1.41 | 84.51 ± 2.85 | |||
| 12.6.63 ± 1.76 | 86.13 ± 3.87 | 13.04 ± 1.23 | 88.27 ± 3.70 | ||||
| 2 years 6 months | 13.93 ± 1.60 | 91.20 ± 4,28 | 13.96 ± 1.27 | 81.85 ± 3.78 | |||
| 3 years old | 14.85 ± 1.53 | 97.27 ± 3 , 78 | 14.95 ± 1.68 | 95.72 ± 3.68 | |||
| 4 years | 16.02 ± 2.30 | 100.56 ± 5.76 | 17, 14 ± 2.18 | 102.44 ± 4.74 | |||
| 5 years | 18.48 ± 2.44 | 109.00 ± 4.72 038 | 110.40 ± 5.14 | | ||||
| 6 years | 21.34 ± 3.14 | 115. 70 ± 4.32 | 21.20 | 115.98 ± 5.51 | |||
| 7 years old | 24.66 ± 4.08 | 123.60 ± 5.50 | 24.92 ± 4.44 | 123.88 ± 5.40 | |||
| 8 years | 27.48 ± 4.92 | 129.00 ± 5.48 | 27.86 ± 4.72 | 129.94 ± 5.70 | 0049 9 years old31.02 ± 5,92 | 136.96 ± 6.10 | 30.60 ± 5.86 | 9004.64 ± 6.12
| 10 years 10 years old | 888888888834.32 ± 6.40 | 140.30 ± 6.30 | 33.76 ± 5.26 | 140.33 ± 5.60 | |||
| years 11 years | 37.40 ± 7 06 | 144.58 ± 7.08 | 35.44 ± 6.64 | 143.38 ± 5.72 | |||
| 12 years 9004 038 | 152.81 ± 7.01 | 41.25 ± 7.40 | 150.05 ± 6.40 | ||||
| 48.70 ± 9.16 | 156. 85 ± 6.20 | 45.85 ± 8.26 | 156.65 ± 8.00 | ||||
| 14 years old | 51.32 ± 7.30 | 160.86 ± 6.36 | 51 , 18 ± 7.34 | 162.62 ± 7.34 | |||
| 15 years old | 56.65 ± 9.85 | 161.80 ± 7.40 | 56.50 ± 13.50 ± 13.50 | 168.10 ± 9.50 | |||
| 16 years old | 58.00 ± 9.60 | 162.70 ± 7.50 | 62.40 ± 14.10 | 172.60 ± 9.40 | |||
| 17 years old | 58.60 ± 9.40 | 163.10 ± 7,30 | 67.35 ± 12.75 | 176.30 | |||
Deviations of weight or height from tabular values
There is no need to panic if there is a minimal discrepancy with the indicated values in the table, and here's why:
- First of all, the child's height and weight charts contain reference indicators , what should ideally be the weight and height of the child, without taking into account many other factors .
Sometimes parents of premature babies mistakenly use a standard table for comparison, while there are special tables for assessing the development of children born prematurely. - The rate of growth and weight gain for each child is unique . In the first year of life, babies develop in leaps and bounds. For example, during the period of introducing complementary foods, the weight of the baby may not reach the “norm” due to adaptation to a new type of food, and not because of pathology.
This does not mean that deviations from the norm should be ignored , but it is better to regard them as an occasion to pay attention and consult a specialist in order to identify possible health problems, or to make sure that they are not present.
What can cause obvious deviations from the norm?
Earlier we talked about minor deviations from the norm and that there is no need to be scared if your child is not growing and gaining weight strictly according to the chart.
But what to do if the values of the essential have gone beyond the limits of the permissible parameters , or are they at the intersection of norm and pathology?
Reasons for possible deviations can be divided into two groups:
1. Non-endocrine:
- Constitutional growth retardation . Or in another way, the syndrome of late puberty. One of the variants of the norm, when the puberty jump occurs later than in other children.
- Family stunting . It has a hereditary predisposition, in the family of such children there are relatives with short stature. Growth retardation manifests itself from early childhood.
- Prematurity, intrauterine and postnatal injuries.
- Genetic syndromes . As a rule, they have many clinical manifestations, one of which is growth retardation.
- Chronic diseases of the cardiovascular, bronchopulmonary systems, gastrointestinal tract, as well as anemia.
- Fasting .
- Taking certain medications .
2. Endocrine:
- Growth hormone deficiency . Biologically active substance, which is the main regulator of the growth process after 2 years.
- Deficiency of thyroid hormones . More often of a congenital nature, it is clinically characterized by a delay in physical and intellectual development from birth.
- Type 1 diabetes mellitus . A disease in which, due to insulin deficiency, the flow of glucose into the cells of the body is impaired, the so-called. "starvation" of cells, as a result, growth rates slow down.
- Itsenko-Cushing's disease (or syndrome) . At the same time, the production of hormones of the adrenal cortex, glucocorticoids, is increased, which in large doses leads to a violation of the secretion of growth hormone.
- Rickets .
A lack of vitamin D leads to bone destruction and skeletal deformities, which in turn is manifested, among other things, by a decrease in growth. - Other rare disorders of the endocrine system.
As you can see, there are a lot of reasons.
If the child's growth is stunted, parents should consult a doctor to identify the causes of short stature and correct it in a timely manner.
Which specialist should I contact? First, you should make an appointment with a pediatrician. Also, in most cases, consultation with a pediatric endocrinologist is required.
Remember that for the normal growth of the child you need a complete, balanced diet with enough vitamins and minerals, as well as dosed physical activity.
Percentiles in infants and children, what are they for? How are they calculated?
As a child grows throughout their childhood, when they go to the pediatrician, they check growth charts to see if physical development is optimal for their age.
Growth charts or percentiles help doctors and parents evaluate and monitor a child's growth. Although growth charts can provide important information, this information should not be the only diagnostic tool a clinician uses. Percentiles are an analysis of information, but each child is different and does not always have to be accurate for everyone.
Index
- 1 What are percentiles?
- 2 Children's percentiles
- 3 Children's percentiles
- 4 How to calculate percentiles
- 5 Children's percentile chart
- 6 Girls' percentile chart
What are percentiles?
Percentiles are growth curves or charts that measure and compare children's height. regarding general and standard data. These parameters show height, weight and head circumference, which are considered normal at a certain age, taking into account, first of all, the first years of a baby's life.
But it should be noted that every child is a world, and that the doctor himself will evaluate whether the boy or girl is really within the normal range or if there is something to be considered regarding their health.
Growth curves contain a set of percentiles ranging from 5 to 95%. Doctors measure the circumference of the child's head, in children under 3 years old - weight and height. After collecting this data, the doctor plots the growth according to the child's age.
Weight, height and head circumference, if they fall within the graph, will indicate the percentile. This is adequate. Percentiles are a way to compare your child to other children. Higher percentages indicate a fatter or taller child, while lower percentages indicate a lighter or shorter child.
For example, a girl with the 75th weight percentile would be above 75 girls out of 100 and less than 25 girls out of 100. Percentiles also allow the clinician to compare height and weight to determine proportionate height.
A child with a 90th percentile weight and 25th percentile height is likely to be too heavy for their height; whereas a child with the 50th percentile of height and weight has a good ratio.
Childhood Percentiles
If you want to know if your child's percentiles match their age at birth, the first thing you need to do is Consult your pediatrician to determine suitable parameters. . The best percentile charts are the ones your pediatrician will have as they are likely to be based on the WHO charts. The percentile will display your child's weight or height on the growth chart (he may be above or below average), and you have nothing to worry about as they are standard values and everything is fine unless your pediatrician sees something unusual. ordinary, in which case they will have to tell you about it.
The growth of infants and children is influenced by many external factors, such as feeding or movement, but there is also a large influence of genetic factors.
Even if your child or toddler is above or below the standard height, if they are happy, alert, active and in good health, they will rarely suffer from problems. Percentile charts should only be a guide for you, but your pediatrician will always evaluate your child's growth, development, and health.
Percentile children
The same happens with infant percentiles in infant percentiles are indicative values and should not be of any concern. Although, if a child may be obese for his age, it would be wise for parents to take action in his life, not only because of what they invest in the percentile, but also for the good of his health.
Si the doctor appreciates that parents should take some action In particular, thanks to the data in the growth chart and the data your child has regarding his weight, height and age, they will immediately inform the parents in order to find the best solutions for health baby.
How to calculate percentile
Childhood obesity is a serious problem Millions of children in our society are overweight.
Children under 6 years of age are overweight due to malnutrition and a sedentary lifestyle. Obesity can cause developmental and health problems in children, and percentiles can be a great tool to determine if a child is on the path to becoming obese.
But in addition to physical health problems, there can also be emotional health problems that lead to low self-esteem in children when they feel that their body image is negative.
You can find calculators online to automatically calculate your children's percentile, but you can also do it yourself with or without the help of a doctor. To calculate the percentile, you must first calculate your BMI (body mass index), where will give you your ideal weight based on your current weight and height. You must remember that BMI does not calculate body fat, but only adequate weight based on height.
BMI is calculated by dividing weight by height in meters squared. . For example, if your three-year-old son weighs 16'250 kg and is 92 cm tall, his BMI would be 19'19.
The equation to get the BMI would be 16'250 / (0 x 92). Knowing the BMI is not enough to know if a child is overweight, we must take into account the age and whether it is a boy or a girl.
After calculating the BMI, you should look at the growth chart of boys or girls according to the age presented by WHO, after which you can get the percentile corresponding to your son / daughter. Percentiles are an indicator that will help you recognize the relative position of your BMI in relation to your peer group. The average percentile will indicate normal weight, but the lower the risk of weight loss in a child and the higher the risk of being obese or overweight. WHO classification of children:
- Percentile less than 5: underweight
- Percentile 5 to 85: normal weight.
- 85 to 95 percentile: overweight.
- Over 95 percentile: obese
In BMI, the values would be:
- Less than 18: underweight.
- 18 to 24.
