Last Updated: March 2026
(Originally published February, 2022)
You might find yourself staring at the bottle, the clock, or your newborn’s mouth, trying to piece it all together.
They just fed, or at least you think they did.
You are trying to remember how much that was, whether it was 40 millilitres or 60, and whether that was actually enough.
So you end up Googling it. “How much should a newborn eat?” And the internet gives you charts.
Week one: 30-60ml.
Week two: 60-90ml.
Eight to twelve feeds per day.
The numbers sit there, clean and certain. But your newborn does not follow those same tidy numbers. They took 50ml, then cried an hour later, then slept, then wanted more. Is that too little, too much, or just too often?
Because the question underneath the millilitres is not really mathematical.
It’s: is this normal?
The First Week Does Not Look Like The Chart
In the first few days, a newborn’s stomach is tiny. At birth, it is about the size of a marble. That is why feeding amounts look small.
If you are breastfeeding, the first milk is colostrum. It is produced in days one to three. It is thick and concentrated and made in small volumes. That small volume matches that small stomach.
It does not look impressive, and it can make you doubt.
If you are formula feeding, you can see the numbers. In week one, many newborns take somewhere between 30 and 60 millilitres per feed.
But even that range is just a range.
Some feeds will be 25ml.
Some will be 70ml.
Some will be followed by a cry twenty minutes later.
Most newborns feed at least eight to twelve times in 24 hours. Sometimes more during growth spurts. The Australian parenting website Raising Children notes that many exclusively breastfed babies feed 8 to 12 times in 24 hours in the early weeks.
Small stomach and frequent feeds go together. It can feel relentless, but that pairing is normal.
When The Amount Suddenly Changes
Around days seven to ten, something shifts.
Your newborn may suddenly want more. Or more often. Or both.
This is usually a growth spurt.
Growth spurts often mean your baby feeds more often, and sometimes a little more at each feed. They do not mean you underfed them yesterday. They mean their body is asking for more today.
Breast milk supply responds to removal. More feeding signals more production.
Formula-fed newborns may increase from around 60ml to 90ml per feed over the first couple of days.
But not all babies follow that pattern. Some babies drink steadily larger feeds. Some stay smaller but feed more often. Both patterns can be normal.
If you are breastfeeding, there is no bottle to hold up to the light. No line to check.
Most breastfed newborns feed often. Usually, at least 8 to 12 times in 24 hours, sometimes more during growth spurts.
Instead of measuring a number, you start noticing other things. The sound of swallowing once the quick little sucks settle into a rhythm. Your breast feels lighter afterwards. Your baby’s hands loosen as they drift off.
Over the course of a day, wet nappies and slow, steady weight gain begin to tell the fuller story.
You cannot see the volume, but you can see the pattern.
The Scale And The Spiral
Then there is the weigh-in.
In Australia, your maternal child health nurse or GP will track your newborn’s weight. You stand there, trying not to look too invested while the number settles on the scale.
Some newborn weight loss in the first few days is expected. Up to 7 to 10 per cent of birth weight can drop as they adjust to life outside the womb.
What matters is the trend.
After the first week or so, weight should begin to rise. Many newborns regain their birth weight by 10 to 14 days.
In early weeks, average weight gain is often around 150 to 200 grams per week. That works out to roughly 15 to 30 grams per day. It is not a performance score; it is a trend.
If weight is climbing and nappies are wet, the feeding amount is very likely appropriate. Even if it feels messy.
The Nappy Reality Check
When your brain wants certainty, nappies are steadier than millilitres.
By around day five, most newborns who are eating enough will produce at least six heavy wet nappies in 24 hours. Urine should be pale.
Dirty nappies vary, especially between breastfed and formula-fed babies, but in the early weeks, several per day is common.
Wet nappies are not influenced by comparison or guesswork. They give you something steadier to hold onto. If nappies are consistent and weight is trending upward, the feeding amount is working for your baby.
When Feeding Feels Off
Sometimes the question is not about numbers. It is about something feeling not quite right.
If your newborn has fewer wet nappies than expected.
If weight continues to fall rather than rise.
If they are very sleepy and difficult to wake for feeds.
If urine is dark.
If there are signs of dehydration, such as dry lips or a sunken soft spot.
That is worth discussing with someone you trust.
Increasing jaundice can also make newborns sleepier and affect feeding. If your baby appears more yellow or increasingly sleepy, seek medical advice.
If breastfeeding is painful beyond the first moments of latch, or if you suspect tongue tie affecting milk transfer, an International Board Certified Lactation Consultant can assess a full feed.
Your GP, paediatrician, or maternal child health nurse can monitor growth and feeding patterns. The Australian Breastfeeding Association offers 24-hour support for breastfeeding questions.
Asking for help does not mean you miscalculated. It means you are attentive.
The Part Nobody Says Out Loud
Sometimes, the feeding amount question is not about feeding at all. Often, it is really about wanting some sense of control. You measure because it feels like something solid.
In early motherhood, sleep is fractured. Your body is healing. Your newborn’s cues are new and inconsistent. Of course, you want a number to hold onto.
But newborn feeding is usually rhythmic before it is arithmetic.
Small stomach, frequent feeds, gradual increases and temporary growth spurts.
If your baby sometimes takes 50ml and sometimes 80ml, that does not mean you have failed the chart. It means you are feeding a newborn who does not read charts.
If You Are Staring at a Bottle Right Now
Try looking at your baby, not just the number.
Are there wet nappies?
Is weight slowly climbing?
Are there alert stretches during the day?
If yes, the feeding amount is very likely enough. It may not look tidy. It may not match your friend’s baby. It may not match the internet’s perfect progression.
But newborns are not averages. They are individuals with marble-sized stomachs and unpredictable appetites.
You are allowed to feel unsure, and you are allowed to ask.
If you are worried about your baby’s weight, or if your gut instinct is telling you something is off, please reach out to your GP, child health nurse, or the Australian Breastfeeding Association 24/7 helpline (1800 686 268) for expert support.
Feeding is not a test you pass or fail, but a rhythm you and your baby are learning together.”
