A 2-week-old baby typically eats 2 to 3 ounces per feeding, about 8 to 12 times in a 24-hour period. That works out to roughly every 2 to 3 hours around the clock. The exact amount varies depending on whether your baby is breastfed or formula-fed, how big they are, and whether they’re in the middle of a growth spurt.
Formula-Fed Babies at Two Weeks
For formula-fed newborns, a reliable rule of thumb is 2.5 ounces of formula per day for every pound of body weight. So an 8-pound baby would need about 20 ounces spread across the day. Divided over 8 feedings, that’s roughly 2.5 ounces per bottle. Most formula-fed infants this age eat every 3 to 4 hours, though some still want a bottle every 2 to 3 hours.
These numbers are averages. Some feedings your baby will drain the bottle, and others they’ll lose interest halfway through. That’s normal. What matters is the overall pattern across the day, not any single feeding.
Breastfed Babies at Two Weeks
Breastfeeding makes it harder to measure exact ounces, and that’s by design. Breastfed babies tend to eat more frequently, typically 8 to 12 times in 24 hours, because breast milk digests faster than formula. Each nursing session might last anywhere from 10 to 20 minutes per side, though the length varies widely from baby to baby.
Rather than tracking ounces, the best way to know your breastfed baby is getting enough is by watching what comes out. After the first five days of life, your newborn should produce at least 6 wet diapers per day. The number of dirty diapers varies more, but you should see them regularly. If those diapers are showing up consistently, your baby is almost certainly eating enough.
Your Baby’s Stomach Is Still Tiny
By day 10, a newborn’s stomach is about the size of a ping-pong ball, holding roughly 2 ounces at a time. This is why small, frequent feedings make more sense than trying to get your baby to take larger amounts less often. Overfeeding can lead to spit-up and discomfort because there’s simply not much room in there yet. If your baby consistently spits up large amounts after feeding, they may be taking in more than their stomach can handle.
The 2-Week Growth Spurt
If your baby suddenly seems hungrier than usual right around the two-week mark, you’re not imagining it. A growth spurt commonly hits between 2 and 3 weeks of age, and it can temporarily change feeding patterns in ways that feel alarming. Babies going through a growth spurt may want to nurse as often as every 30 minutes, act fussier than usual, and seem unsatisfied even after a full feeding.
This is normal and temporary. Growth spurts typically last only a few days. During this time, feed your baby whenever they show hunger signs rather than trying to stick to a schedule. For breastfeeding parents, the increased demand also signals your body to produce more milk, so the frequent nursing serves a dual purpose.
How to Tell Your Baby Is Hungry
Crying is actually a late sign of hunger. By the time your baby is wailing, they’ve already been signaling for a while. The earlier cues to watch for: putting their hands to their mouth, turning their head toward your breast or the bottle (called rooting), smacking or licking their lips, and clenching their fists. Catching these signs early makes feeding easier because a calm baby latches and eats more effectively than a frantic one.
When your baby is full, the signals flip. They’ll close their mouth, turn their head away from the breast or bottle, and relax their hands. These are clear stop signs. Pushing more milk after your baby shows fullness cues can lead to overfeeding and discomfort.
Signs Your Baby Is Getting Enough
The most concrete measure is weight. Newborns lose some weight in the first few days after birth, but they should regain their birth weight by 10 to 14 days old. Your pediatrician will check this at the two-week visit. After that, steady weight gain of about 5 to 7 ounces per week is typical for the first few months.
Between weigh-ins, diaper counts are your best daily indicator. At least 6 wet diapers per day after the first week tells you your baby is well-hydrated. Your baby should also seem generally satisfied after feedings, not persistently fussy or rooting immediately after eating. A baby who is alert during wakeful periods and meeting those diaper minimums is almost certainly eating well.
When Feeding Feels Off
Some things are worth paying attention to. A baby who consistently falls asleep within a minute or two of starting to feed may not be getting enough. A baby who wants to eat constantly, beyond what a growth spurt would explain, for more than a few days could be having trouble transferring milk efficiently during breastfeeding. And if your baby hasn’t regained their birth weight by the two-week checkup, your pediatrician will want to evaluate what’s going on and may suggest adjustments to your feeding approach.
Fewer than 6 wet diapers a day, a sunken soft spot on the head, or dark concentrated urine are signs of dehydration that need prompt attention.