A 5-month-old typically drinks 24 to 32 ounces of breast milk or formula per day, spread across 4 to 6 feedings. The exact amount depends on whether your baby is breastfed or formula-fed, their weight, and whether they’ve started any solid foods.
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 15-pound 5-month-old would need roughly 37.5 ounces in theory, but most babies cap out well below that. The practical recommendation is no more than 32 ounces of formula in 24 hours. Most 5-month-olds fall in the 28 to 32 ounce range.
At this age, babies typically eat 5 to 6 times per day, which works out to about 5 to 6 ounces per bottle. A 5-month-old’s stomach holds around 6 to 7 ounces, so anything beyond that in a single feeding is likely to come back up or cause discomfort. If your baby drains a bottle and still seems hungry, it’s better to offer a small top-up after a brief pause rather than filling a larger bottle from the start.
Daily Totals for Breastfed Babies
Breastfed babies between 1 and 6 months old consume about 24 to 30 ounces of breast milk per day, with each feeding session averaging 3 to 4 ounces. This range stays remarkably stable from about 1 month through 6 months. Unlike formula intake, which gradually increases as a baby grows, breast milk composition changes over time to meet a growing baby’s caloric needs without requiring much more volume.
If you’re pumping and bottle-feeding, those 3 to 4 ounce portions are a good starting point. Breastfed babies who nurse directly will regulate their own intake, and the number of nursing sessions per day can vary widely. Some 5-month-olds nurse 4 times, others 6 or more.
How Solids Affect Milk Intake
Some parents begin introducing solid foods around 5 months, though many pediatricians recommend waiting until closer to 6 months. If your baby has started trying small amounts of pureed food, breast milk or formula should still be the primary source of nutrition. Early solid foods are more about exposure and practice than calories.
That said, solid foods can displace some milk from the diet, especially formula. If your baby is filling up on cereal or purees and then refusing a bottle, it’s worth offering milk first and solids afterward to make sure they’re still getting enough liquid nutrition.
How to Tell Your Baby Is Getting Enough
Counting ounces is one way to track intake, but it’s not the only one. Several reliable signs tell you your baby is well-fed:
- Wet diapers: At least 6 heavy, wet diapers every 24 hours.
- Steady weight gain: At 5 months, babies typically gain around 10 to 20 grams per day (roughly half an ounce to two-thirds of an ounce). This is slower than the rapid gains of the newborn period, which is normal.
- Contentment after feeds: Your baby seems calm, relaxed, and satisfied after most feedings rather than fussy or rooting for more.
- Alertness: Your baby appears healthy and engaged when awake.
For breastfed babies specifically, you can watch for rhythmic sucking and swallowing during feeds, rounded (not hollowed) cheeks while nursing, and your baby coming off the breast on their own when finished.
Night Feedings at 5 Months
Most 5-month-olds still wake at least once or twice overnight to eat, and those feedings count toward the daily total. If your baby is waking more than twice a night to feed, the extra wake-ups may be more about habit or comfort than hunger. That doesn’t mean you need to change anything immediately, but it’s worth knowing that most babies this age can go longer stretches between overnight feedings than they did as newborns.
When calculating whether your baby is hitting the 24 to 32 ounce range, include those nighttime bottles or nursing sessions. A baby who takes four 6-ounce bottles during the day plus one 4-ounce bottle at night is right on track at 28 ounces total.
When Intake Seems Too Low or Too High
Babies have off days just like adults. A single day of lower intake during a mild cold or a fussy stretch isn’t cause for concern. What matters is the pattern over several days and whether your baby is gaining weight appropriately.
If your baby consistently takes less than 24 ounces per day, seems lethargic, or produces fewer than 6 wet diapers daily, that’s worth a conversation with your pediatrician. On the other end, regularly exceeding 32 ounces of formula can lead to excessive weight gain and frequent spit-up. Babies who seem insatiable after full bottles may be sucking for comfort rather than hunger, and a pacifier between feedings can help sort out the difference.