What Is The Average Weight Of A Newborn Baby

How Often Should You Weigh Your Baby

Is Infant Weight Loss Normal? | Baby Development

Its very easy to become a little obsessive about your babys weight, but after the first two weeks of birth, you really dont need to weigh your baby that often. As a general guide, you should weigh your baby:

  • Once a month, up to six months of age

  • Once every two months from 6-12 months of age

  • Once every three months over the age of one

Obviously, you can weigh your baby as often as you like, and you dont need to wait until your next appointment. You can go to your local baby clinic or see your health visitor at any time, but your midwife will probably only weigh your baby more often if they have concerns about your little ones development.

Baby Weight Chart By Age

Weight charts can help a person tell what percentile their babys weight falls into. For example, if their weight is in the 60th percentile, it means that 40% of babies of the same age and sex weigh more, and 60% of these babies weigh less.

This does not necessarily mean that any baby weighs too much or too little. It can simply indicate where a babys weight falls on a spectrum.

The chart below shows baby weights in the 50th percentile. This is the average weight. Male babies tend to weigh a little more than female babies, so the chart is divided by sex.

Baby age

Your Toddler’s Weight And Height

Your child’s height after the age of 2 gives some indication of how tall they will be when they grow up. If you like, you can use the adult height predictor in your baby’s red book to work it out.

Once your child gets to the age of 2, a health visitor may use their weight and height to calculate their body mass index and plot it on a centile chart. This is a way of checking whether your child’s weight is in the healthy range or not.

If they’re overweight or underweight, a health visitor can give you advice about your child’s diet and physical activity levels.

You can also use our BMI calculator to check your child’s BMI .

For more information about your baby or toddler’s weight or height, talk to a health visitor or GP.

Recommended Reading: How To Soothe A Newborn To Sleep

Not All Growth Charts Are Equal

Just as all children are different, it is important to realize that not all growth charts are the same. The Centers for Disease Control and Prevention provides a set of growth charts that include older data and information from a combination of feeding methods. The CDC growth charts are a reference and show how children grew during a specific period in the United States.

The World Health Organization growth charts contain more data from breastfed babies. Mothers are breastfeeding more and more and the WHO charts are considered a standard on how children should grow.

The CDC recommends using the WHO growth charts for all babies during the first two years. The American Academy of Pediatrics agrees with the CDC recommendation.

Where To Record Your Babys Weight


Towards the end of your pregnancy or after youve given birth, your doctor or midwife will give you a little red book. This is your babys personal child health record . Dont worry, its not as scary as it sounds!

You should use this book to record your little ones weight and height. Some parents like to keep a record of their babys vaccinations and illnesses as well, but your little red book should be kept up-to-date with your babys weight and height changes. Its a good way to track your little ones development, so make sure you take it to the baby clinic or your doctor. Youll find it very useful – and its also a lovely record to look back on when your little one is all grown up.

You May Like: Can Newborns Have Acid Reflux

Lets Also Understand A Little About The Reasons Affecting The Average Weight Of A Newborn Baby:

1. The weight and height of the mother and father have an effect on the newborns average height and weight.

2. As mentioned earlier, premature kids might have a lower average weight and height percentile.

3. The lifestyle of the mother and the family also affects the childs birth weight and height.

4. Giving birth to twins, triplets? As per research, the average weight of the other kid/s would be lower.

What The Centile Lines Mean

The curved lines on the charts are called centile lines. These show the average weight and height gain for babies of different ages.

Your baby’s weight and height may not follow a centile line exactly. Their measurements may go up or down by 1 centile line, but it’s less common for them to cross 2 centile lines. If this happens, talk to a health visitor, who can advise you.

It’s normal for your baby to be on different centiles for weight and length, but the 2 are usually fairly similar.

All babies are different, and your baby’s growth chart will not look exactly the same as another baby’s, even their own brother or sister.

Don’t Miss: Why Do Newborns Get Eczema

Parents Assemble Theres A Mega 458 Off In This Amazing Snoo Black Friday Baby Deal

Your baby will rely on either breast or bottle to give them the nutrients that they need to keep them growing at the right pace. You can check if your baby is taking in all those nutrients properly by looking out for some of these signs. Heres a rough checklist that should show if theyre getting enough nutrition in their milk:

  • They have yellowy, seedy poo five times a day to begin with, slowing to an average of one a day from three months onwards
  • Their nappy is wet and/or heavy. Hold a fresh one in the other hand and compare the weight of the two if youre unsure
  • Their wee is clear. If its yellow your baby could be dehydrated and not getting enough to drink
  • A bottle has the advantage of giving an accurate measure of how much theyve taken
  • At the breast, your baby should be making gulping and swallowing noises
  • Theyre happy after a feed and dont cry for more
  • Theyre following the height and weight chart to the satisfaction of your doctor or health visitor

Remember, its normal to go a few weeks where theres no gain, sometimes even a small weight loss, usually followed by a growth spurt

Average Baby Weight By Month


Thereâs no single average baby weight in the first 12 months thatâs relevant for all babies and all families. As youâve read above, what’s key is that your baby gains weight steadily based on her own growth rate. A baby whoâs in the 50th percentile is not necessarily any healthier than a baby in a lower or higher percentile.

As a general guideline: During your little oneâs first month, your baby may gain about 1 ounce per day on average. Then, your baby may double her birth weight by 5 or 6 months of age, and triple it by 12 months.

As your babyâs weight changes, you may need to go up a diaper size. Check out this Pampers size and weight chart to make sure you choose the best diaper size for your baby.

Read Also: How To Get My Newborn To Sleep More At Night

Should I Worry If My Baby Loses Weight After Birth

Newborns carry extra fluid, so it’s perfectly normal for their weight to drop by seven to 10 per cent in the first few days.

Their birth weight should, however, be regained by about two weeks.

The NHS gives new parents growth charts in a red book, so you can track their growth.

The curved plotted lines are based on data by the World Health Organisation and show the pattern a healthy child should follow.

Issues With The Balance Of Labor

People may experience an imbalance of labor when one caregiver takes sole responsibility for feeding the baby.

Infants eat many times each day, and this can leave the person who is breastfeeding with very little time.

Pumping milk is the better choice compared to formula, but it does not offer as many health and immune system benefits.

Some drawbacks of pumping breast milk include:

You May Like: How Often To Bathe Your Newborn

Why Your Babys Weight Is Important

During your babyâs first year, and beyond, your childâs weight gives his healthcare provider one indication of whether there are any medical or development issues, and whether your little one is getting enough to eat.

Although a single weight measurement can offer valuable information, your baby’s healthcare provider also wants to see how your baby grows over time. For example, if your baby is growing at a steady, predictable rate during the first six months but then suddenly starts growing at a slower pace, the provider can start to look into why that may be happening.

If there is any issue, your provider will be able to make a diagnosis and recommend a course of action.

Keep in mind that when it comes to weight there is a broad spectrum of whatâs healthy and normal. Your baby gaining weight steadily is more important than how much your baby weighs at any given time compared to others. Trust what your healthcare provider tells you about whether your baby is on track.

Customized Food For Baby

Birth Weight Statistics: Trends in Newborn Growth

Breast milk is customized food for a baby based on feedback from the babys body. Letting a baby feed at the breast allows its saliva to interact with the milk. This interaction sends messages to the womans brain about what the baby needs.

According to a 2013 study , this interaction between the breastfeeding woman and the baby ensures the baby gets the nutrients required, as well as antibodies that can protect against infections.

The breast milk has specific components if the baby is premature and changes composition as it ages. The milk also changes according to the time of day and even during a given feeding.

Recommended Reading: How To Help Newborn Fall Asleep

Newborn Baby Birth Weight: What Is Normal Average And Low

Did you ever wonder what is the normal weight of a newborn baby?

You may be concerned about your own babys health or you just may be curious.

Either way keep on reading to find out what still counts as normal weight, what is the averga baby birth weight and what causes babies to be either tiny or heavy.

Factors That Affect The Average Newborn Length

Normally, babies grow up to an inch per month from birth to six months. As they go beyond the sixth month to 12 months, their growth rate slows to half an inch per month. A baby boys average length at six months is around 26.5 inches or 67.6 centimeters, while a baby girl will be around 25.75 inches or 65.7 centimeters. By the time baby boys reach their first year, their length will be at 29.75 inches while girls measure at 29 inches.

Sometimes, a childs skeletal age must be determined. A skeletal age assessment is a clinical procedure used to determine the skeletal age of children and teens . An SAA assesses skeletal maturity, growth potential and growth disorders such as growth hormone deficiency and hypothyroidism. A single x-ray is taken of the left wrist, hand and fingers. This is compared with a standard atlas of the same bones from large numbers of other children of the same gender and age .

Bone development can be influenced by nutrition, hormonal secretions and genetics.

There are many factors that affect a babys size:

Also Check: What Causes Sids In Newborns

Giving Birth To A Large Baby

Most large babies who weigh more than 4.5kg do not have a difficult birth. But there are still some risks associated with having a big baby.

Labour may take longer and be more likely to involve complications. There’s an increased risk of having a forceps or vacuum-assisted delivery or a caesarean, and of birth injury to the mother or baby.

There is a link between fetal macrosomia and shoulder dystocia. Shoulder dystocia occurs during a vaginal birth when the baby’s head has been born, but one of the shoulders becomes stuck behind the mother’s pelvic bone. The baby’s shoulders need to be released quickly so the baby’s body can also be born, and they can start breathing.

Shoulder dystocia can happen during any birth. At least half of all babies who experience shoulder dystocia at birth weigh less than 4kg.

Large babies can be born via a normal, vaginal delivery but it’s best to give birth where you can access specialist medical services, just in case things don’t go according to plan. Every pregnancy and birth is unique, so talk to your doctor or midwife about the best place for you to give birth.

When Is Your Babys Weight Checked

What Affects Your Babyâs Weight | Average Baby Weight

Your babyâs first weigh-in will likely happen soon after birth. Then your babyâs pediatrician will be checking your childâs weight and other measurements like length and head circumference at each well-child visit. In the first year, these are the times and ages when the well-child visits are typically scheduled:

  • The first week

Youâll likely be asked to undress your baby for the weigh-in, so make sure your baby is dressed in clothes that are easy to take off and put back on.

You May Like: How To Let Newborn Sleep At Night

Your Newborns Weight Gain

Newborns are often weighed throughout their stay in the hospital and sometimes again 48-72 hours after discharge. Newborns are then weighed a week after birth and sometimes again at two weeks after birth. If a baby has any health concerns, weight checks may be scheduled more frequently.If parents dont have a scale at home, they can monitor their babys intake of food in other ways:

  • After the first week, a newborn should be having at least 5-7 wet diapers a day and at least about 3-4 dirty diapers a day.
  • You can also monitor your babys intake by noticing if your baby seems satisfied at least for a little while after feeding.

If you have any questions or concerns regarding your babys weight gain, dont hesitate to ask your health care provider.Endorsed by physicians worldwide, Nordic Naturals products are non-GMO, sustainably sourced, allergen-free and third-party verified for freshness and purity. The company is committed to delivering the worlds safest, most effective omega oils for the entire family. Please visit Nordic Naturals to learn more about DHA and Nordic Naturals commitment to the American Pregnancy Association and the health and wellness of families.

Baby Weight Chart: Whats The Average Weight For A Newborn

  • We earn a commission for products purchased through some links in this article.
  • Find out the average baby weight for your child by using our baby weight chart.

    Every baby is unique and each childs weight and length will differ, but there are some factors that can contribute to how much your baby weighs, such as genetics and the substance of their food which can depend on the mothers diet. If you yourself were a bigger baby, theres a chance your little one is more likely to be bigger too. And if you ensure youre eating plenty of nutrients, your breast milk will have all the ingredients to help your baby grow as big and strong as possible.

    In a recent study in the Journal of Epidemiology, researchers from the University of Bristol concluded that avoiding alcohol completely throughout pregnancy will also help babies to reach a healthy birth weight even before they are born.

    The first thing babies do on their pattern of growth after birth is shrink. It takes a while for your newborn to get used to drinking milk rather than getting food through the placenta , which means they can lose up to 10 per cent of their weight in the days following birth.

    But by about 10 days old, your baby should start to put it on again.

    Recommended Reading: What Happens At 2 Week Check Up For Newborn

    Related Posts

    Popular Articles