Most 4-month-olds drink between 24 and 32 ounces of breast milk or formula per day, spread across five to six feedings. The exact amount depends on your baby’s weight, whether they’re breastfed or formula-fed, and their individual appetite.
Daily Totals for Formula-Fed Babies
The standard guideline is about 2.5 ounces of formula per day for every pound your baby weighs. So a 14-pound baby would need roughly 35 ounces, while a 12-pound baby would need about 30 ounces. In practice, the upper limit is around 32 ounces in 24 hours. If your baby consistently seems to want more than that, it’s worth bringing up at your next pediatric visit rather than simply increasing the volume.
At this age, most formula-fed babies take five to six bottles a day, with each bottle holding about 4 to 6 ounces. That works out to a feeding roughly every three to four hours during the day. Formula feeding should follow your baby’s cues rather than a rigid schedule, so some feedings may be a bit bigger or smaller than others.
Daily Totals for Breastfed Babies
Breastfed 4-month-olds typically nurse about six times a day. If your baby takes breast milk from a bottle (because you’re pumping, for example), expect them to drink 3 to 5 ounces per feeding. That puts the daily total somewhere around 18 to 30 ounces, though direct nursing makes it hard to measure exactly.
Breastfed babies tend to self-regulate their intake more precisely than formula-fed babies, so the range is wider and that’s completely normal. If your baby is gaining weight steadily and producing plenty of wet diapers, they’re getting enough even if you can’t count every ounce.
Why Feedings Stay Relatively Small
A 4-month-old’s stomach holds roughly 6 to 7 ounces at a time. That physical limit is why smaller, more frequent feedings work better than fewer large ones. Offering more than the stomach can comfortably hold often leads to spit-up, gassiness, or fussiness rather than a more satisfied baby.
How to Tell If Your Baby Is Hungry or Full
Crying is actually a late hunger signal, not the first one. Before that point, a hungry baby will bring fists to their mouth, smack their lips, turn their head as if searching for a breast, and become more alert and active. Catching these early cues and offering a feeding right away tends to make the whole experience calmer for both of you.
When your baby has had enough, the signs are equally clear: they’ll pull away from the bottle or breast, turn their head, and visibly relax their body. You may notice their fists unclenching. If they don’t seem interested in latching or keep breaking the seal, the feeding is done. Pushing a baby to finish a bottle they’ve lost interest in can override their natural sense of fullness over time.
Night Feedings at 4 Months
By 4 months, most formula-fed babies no longer need a middle-of-the-night feeding, especially once they weigh more than 12 pounds. Many can go five or more hours between feedings overnight. That said, breastfed babies sometimes still wake once or twice, and that’s within the normal range.
If your baby is waking to feed more than twice a night at this age, the extra wake-ups may be habit rather than hunger. Gradually stretching the time between night feedings, or offering slightly larger feedings during the day, can help shift more of the daily intake into waking hours.
Tracking Healthy Weight Gain
At 4 to 6 months, healthy babies gain about 1 to 1.25 pounds per month. Your pediatrician tracks this on a growth chart, and the trend matters more than any single weigh-in. A baby who consistently follows their own curve, whether it’s the 25th percentile or the 75th, is doing well.
If weight gain stalls or your baby drops off their usual curve, the feeding volume or frequency may need adjusting. On the flip side, rapid weight gain beyond what’s expected could mean feedings are larger than necessary.
What About Starting Solid Foods?
At 4 months, breast milk or formula should still be your baby’s only food. Both the American Academy of Pediatrics and the CDC recommend waiting until about 6 months to introduce solids, and starting before 4 months is specifically not recommended. Some pediatricians give the green light closer to 4 to 5 months for babies showing strong readiness signs (sitting with support, showing interest in food, good head control), but milk remains the primary source of nutrition well into the second half of the first year regardless of when solids begin.