It's completely normal to be unsure about how much milk a newborn should have, especially in the first few days when both appetite and milk supply can fluctuate. I'll guide you with practical rules of thumb and concrete signs to look out for. Remember that babies don't always drink "on schedule" - and that breastfeeding and bottle feeding often need to be assessed a little differently.
How many ml of milk should a newborn have per day?
If you are bottle-feeding (breast milk or formula), amounts are often measured in ml. A common professional rule of thumb is approx. 150 ml per kg of body weight per day, once breastfeeding/nutrition is established. Some babies may be lower or higher, and the need can change, for example, during growth spurts.
It can help to think in terms of daily intake rather than per feeding, as newborns often eat unevenly throughout the day.
Practical calculation example
If your baby weighs 3.5 kg, for example, the rule of thumb gives approx. 3.5 x 150 ml = 525 ml per day. This is just a guideline, not a requirement.
How many ml per feeding for a newborn?
Per feeding depends on how often the baby eats. Many newborns eat 8 to 12 times a day, some even more often at times. If you distribute an approximate daily amount over many feedings, individual doses may therefore seem "small" - and this can still be completely normal.
Tip if you are bottle-feeding
It's better to start with a smaller amount and offer more if there are clear signs of hunger. This reduces the risk of the baby becoming overfed or spitting up a lot. Take breaks along the way so the baby can feel full.
How often should a newborn eat?
Frequent feeding is normal, especially at the beginning. Some babies have several feedings close together (cluster feeding), and it can feel intense, but it's often part of building up milk production and meeting their needs.
Signs of hunger you can react to
- Smacking, licking around the mouth, rooting with the head
- Hands to mouth, small sounds and restlessness
- Crying is often a late sign, so try to offer before it gets to that point
Signs that a newborn is getting enough milk
Focus on signs of well-being rather than "guessing" amounts at the breast, where you can't measure in ml. It's typically the health visitor who helps with the overall assessment.
What you can look out for at home
- Baby appears awake and has periods of calm after feedings
- There is an appropriate number of wet nappies (the health visitor can provide numbers for age)
- Weight development is monitored, and the baby gains weight over time after the initial normal starting period
Contact your health visitor or doctor if you are concerned about lethargy, very few wet nappies, persistent dissatisfaction after many feedings, or if weight development is not as expected.
Breastfeeding vs. bottle feeding: what does it mean for the quantity?
With breastfeeding, the amount varies from feeding to feeding, and the baby often regulates both frequency and duration themselves. Skin-to-skin contact can also support calm and bonding, which many experience as helpful in the beginning.
With bottle feeding, you can measure the amount, but it can also make you more focused on numbers than necessary. Try to combine ml with the baby's signals: pace, breaks, and fullness.
Products that can support the first breastfeeding period (optional)
If you are breastfeeding frequently, comfort can make a big difference in everyday life. A soft nursing bra without underwire is important, as metal underwires can press and irritate the tissue. A supportive alternative could be a gel solution designed to provide more flexible support: Gel-Support® maternity and nursing bra. For leakage, washable breast pads can also be practical: Breast pads. And if you want to get the basics for the first period, a packaged solution can be easy: Packs.