How many pounds should a 1 month old baby weigh?

As a new parent, it’s understandable to worry about your baby’s growth and development. One of the most common questions new parents ask is, “How many pounds should a 1 month old baby weigh?” Well, have no fear because we’ve got all the information you need right here!

What Is Considered ‘Normal’ for a 1 Month Old Baby Weight?

The average weight for newborns at birth is around 7.5 pounds but this can vary greatly as some babies are born much smaller or larger than others. Within their first few days of life, they will typically lose around 5-10% of their body weight due to fluid loss through urine and stool.

By one month old though, they should start to regain that lost weight and then some! On average, most healthy infants will gain between 4-8 ounces per week, which amounts to roughly 1.6-3.2 pounds by one month old.

Factors That Affect Baby Weight

It’s important to keep in mind that there are several factors that may affect how quickly (or slowly) your little one puts on those precious pounds:

Breastfeeding VS Formula Feeding

Babies who are breastfed tend to gain weight more slowly than those fed with formula as breast milk supply depends on the feeding frequency and efficiency since milk production doesn’t get stimulated without adequate removal from breasts.


Just like adults come in different shapes and sizes based partly upon genetics, so do babies. Babies inherit genes from both parents which can influence whether or not they’re likely to be big or small individuals later in life.

Health Issues

Some medical conditions can make it difficult for babies to absorb nutrients properly leading them fail thrive resulting poorly nutritious state usually associated with slow growth if untreated such as gastroesophageal reflux disease (GERD).

Food Intake

A baby who does not get enough milk or food may lose weight or gain it on a very slow rate.

Monitoring Your Baby’s Weight Gain

In order to make sure that your little one is growing and developing properly, you should schedule regular visits with their pediatrician. By routinely measuring your baby’s length, head circumference, and weight, the doctor can help determine whether they’re progressing at an appropriate rate for their age.

If there are concerns regarding any decrease in growth rate or abnormal increase in weight, necessary investigations relating to health problems will be conducted by doctors.

How to Promote Healthy Growth & Development for Your Newborn?

The key thing is providing consistent nutrition as per the feeding recommendations like exclusive breastfeeding during first few months of life while giving extra attention if necessary such as frequent doctor consultations after birth period especially if preterm infants ^[1].

Feeding Schedule

Make sure your infant has full feeds (five-to-ten minutes each breast alternately) round-the-clock ideally every two hours resulting eight times daily until six weeks when frequency decreases a bit ^[2].

Formula-fed babies may generally feed less frequently than those fed with breast milk since formula stays longer inside stomach than breastmilk hence need more time before gets hungry again- typically three-eight hours between feeds at least amounting 24 ozu=nces of formula needed per day during this period^ [3].

Sleep and Rest Time Table

In addition to feeding needs , taking rest from all stimulus increased sleep requirements compared adults our infants need minimum sometimes up to twenty hours of sleep time every day so creating a designated place primary spot solely meant for him/her sleeping practices also show that environment could relate anxiety levels depending on what kind established over time^[4]

Babies thrive well developmentally wellbeing assessed through various abilities comprehensively tested reach milestones implementation best-trained baby caregivers .

And there you have it—the ins and outs of how many pounds a 1 month old baby should weigh. Just remember, if you ever have any concerns about your little one’s growth or development, don’t hesitate to reach out to your pediatrician.

1- Bottomley C, Bourne T. Growth during the first year differs according to feeding mode in healthy infants: a prospective cohort study. J Hum Lact Off J Int Lact Consult Assoc [Internet]. 2013 May [cited 2022 high];29(2):191–4


3- BabyCentre UK How often should I formula-feed my baby? Available at:

4-Davis KF et al Parents are not sleeping enough either: A cross-sectional survey of sleep durations for partnered co-sleepers with children n=905 United States sample Sleep Med 2018 Aug;48(ehr022) :31-38 doi:pier10037angstrome

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