A 2-week-old baby typically drinks 2 to 3 ounces of milk per feeding, eating 8 to 12 times over a 24-hour period. That works out to roughly 16 to 24 total ounces per day, though the exact amount varies from baby to baby. Your infant’s stomach at this age is only about the size of a ping-pong ball (around 2 ounces), so small, frequent feedings are the norm.
How Much Per Feeding at 2 Weeks
In the first days of life, most newborns start with just 1 to 2 ounces per feeding. By 2 weeks, most babies have worked up to 2 to 3 ounces at a time. Some hungrier babies may take slightly more, but overfeeding a stomach this small often leads to spit-up and discomfort rather than extra nutrition.
Feedings at this age happen every 2 to 3 hours, which means you can expect 8 to 12 sessions in a full day, including overnight. That schedule can feel relentless, but it matches your baby’s biology. A tiny stomach empties quickly, and newborns need a steady stream of calories to support the rapid growth happening in these early weeks. Healthy infants gain roughly an ounce of body weight per day during the first three months.
Breastfed vs. Formula-Fed Babies
If you’re breastfeeding, you won’t be measuring ounces at the breast, which can feel uncertain. Breastfed newborns tend to consume slightly less volume overall than formula-fed babies because breast milk is digested more efficiently, delivering about 85 calories per kilogram of body weight per day compared to about 100 calories per kilogram for formula-fed infants. That doesn’t mean breastfed babies are underfed. They simply extract more nutrition from less milk.
Breastfed babies also tend to feed more frequently, sometimes every 1.5 to 2 hours, because breast milk moves through the digestive system faster than formula. If you’re pumping and bottle-feeding breast milk, 2 to 3 ounces per bottle remains a good target at 2 weeks.
Formula-fed newborns typically settle into a slightly more predictable rhythm, feeding every 2 to 3 hours with 2 to 3 ounces per bottle. Over the coming weeks and months, intervals between feedings gradually stretch to every 3 to 4 hours as your baby’s stomach grows and can hold more at once.
How to Tell Your Baby Is Getting Enough
Since every baby is a little different, the best way to confirm your 2-week-old is eating enough is to watch what comes out. After the first five days of life, a well-fed newborn produces at least 6 wet diapers per day. The number of dirty diapers varies more widely, but consistent wet diapers are the most reliable daily indicator of hydration.
Weight is the other key measure. Most pediatricians expect babies to regain their birth weight by about 10 to 14 days old, then continue gaining roughly an ounce per day. Your baby’s 2-week checkup is specifically designed to confirm this trajectory, so that appointment is a good time to ask about feeding volume if you’re unsure.
Reading Your Baby’s Hunger and Fullness Cues
Rather than watching the clock or measuring every ounce precisely, feeding on demand is the approach most pediatric guidelines recommend at this age. Your baby will show you when they’re hungry before they start crying. Early hunger cues include putting hands to their mouth, turning their head toward your breast or the bottle (called rooting), puckering or licking their lips, and clenching their fists. Crying is actually a late hunger signal, so catching those earlier signs makes feeding smoother for both of you.
Fullness cues are just as important. When your baby closes their mouth, turns their head away from the breast or bottle, or visibly relaxes their hands, they’re telling you they’ve had enough. Resist the urge to push them to finish a bottle. A baby who consistently leaves half an ounce in the bottle isn’t wasting food. They’re regulating their own intake, which is exactly what you want.
When Feeding Amounts Change
Two weeks is still very early, and your baby’s intake will increase steadily over the next several months. By one month, many babies take 3 to 4 ounces per feeding. By two months, 4 to 5 ounces is common. The number of daily feedings gradually decreases as the volume per feeding goes up, so the total daily intake rises more slowly than you might expect.
You may also notice cluster feeding, where your baby wants to eat every hour or so for a stretch, then sleeps longer. This is normal and particularly common in breastfed newborns during growth spurts. It doesn’t mean your milk supply is low. It’s your baby’s way of signaling your body to produce more.