A 2-week-old typically drinks 2 to 3 ounces of formula per feeding, eating every 2 to 3 hours for a total of about 8 to 12 feedings in 24 hours. That works out to roughly 16 to 24 ounces per day for most formula-fed newborns. If you’re breastfeeding, measuring ounces isn’t practical, but the same feeding frequency applies, and there are reliable ways to tell your baby is getting enough.
Formula Feeding Amounts at Two Weeks
In the first days of life, most newborns start at 1 to 2 ounces per feeding. By two weeks, most babies have worked up to 2 to 3 ounces per bottle. This tracks with stomach size: by day 10, a newborn’s stomach is roughly the size of a ping-pong ball, holding about 2 ounces. Over the following days, capacity continues to grow slightly, which is why some two-week-olds comfortably take 3 ounces while others are satisfied with 2.
Feedings happen every 2 to 3 hours, and that interval is measured from the start of one feeding to the start of the next, not from when the last one ended. So if your baby starts a bottle at 6 a.m. and finishes by 6:20, the next feeding would begin around 8 or 9 a.m. At this pace, you’ll be feeding 8 to 12 times in a 24-hour period, including overnight.
Don’t try to get your baby on a strict schedule at this age. Two-week-olds vary their intake from one feeding to the next. Your baby might drain 3 ounces at one feeding and only want 1.5 ounces two hours later. That’s normal. What matters is the overall pattern across the day, not any single bottle.
Breastfeeding at Two Weeks
If you’re breastfeeding, you won’t know exactly how many ounces your baby takes per session, and that’s fine. The American Academy of Pediatrics recommends unrestricted nursing on demand, aiming for at least 8 to 12 sessions per day. Most exclusively breastfed babies feed every 2 to 4 hours at this age.
Breastfed newborns often cluster feed, meaning they’ll want to nurse several times within a short window and then sleep for a longer stretch. This is especially common in the evening. Cluster feeding doesn’t mean your supply is low. It’s a normal pattern that actually helps build your milk production to match your baby’s growing needs.
How to Tell Your Baby Is Getting Enough
Since you can’t peer inside your baby’s stomach, diapers and weight gain are your two best indicators.
After the first five days of life, a well-fed newborn produces at least 6 wet diapers per day. The number of soiled diapers varies more, but you should see them regularly. If your baby is consistently producing fewer wet diapers than that, it’s worth checking in with your pediatrician.
Weight gain is the other reliable measure. Newborns typically lose some weight in the first few days after birth, but by two weeks most have regained their birth weight. From there, the expected gain is about 1 ounce (28 grams) per day through the first few months. Your pediatrician will track this at well-baby visits, which usually happen around 2 weeks of age.
Reading Your Baby’s Hunger and Fullness Cues
Your baby communicates hunger before crying. Early hunger signals include putting hands to the mouth, turning toward the breast or bottle (called rooting), lip smacking or licking, and clenched fists. Crying is actually a late hunger cue. Feeding is easier and calmer when you catch the earlier signs.
Fullness signals are just as important. When your baby has had enough, they’ll close their mouth, turn their head away from the breast or bottle, and relax their hands. Resist the urge to coax them into finishing the last half-ounce. Newborns are good at self-regulating their intake, and pushing past fullness cues can lead to spit-up and discomfort.
When Intake Looks Different Than Expected
Some babies consistently eat on the lower end of the range, and some on the higher end. A baby who was born smaller may take less per feeding but eat more frequently. A larger newborn might comfortably take 3 ounces and go a full 3 hours between feedings. Both patterns are normal as long as weight gain stays on track and diaper output is adequate.
A few things that warrant attention: if your baby is sleeping through feedings and going more than 4 hours without eating, isn’t back to birth weight by two weeks, is producing fewer than 6 wet diapers a day, or seems lethargic and difficult to wake for feedings. These can signal that intake isn’t sufficient, and your pediatrician can help troubleshoot whether the issue is latch, supply, or something else.
Keep in mind that feeding amounts increase quickly. By 1 month, most formula-fed babies take 3 to 4 ounces per feeding. Your baby will naturally ask for more as their stomach grows and their calorie needs increase, so what feels like a lot of feeding right now does space out over the coming weeks.