A 5-month-old typically drinks 6 to 8 ounces of formula per feeding, with 4 to 5 feedings spread across 24 hours, totaling roughly 24 to 32 ounces per day. Breastfed babies follow a slightly different pattern, nursing 8 to 12 times a day in shorter, more frequent sessions. These ranges vary based on your baby’s weight, appetite, and whether they’ve started showing interest in solid foods.
Formula Intake by Weight
The simplest way to estimate your baby’s daily formula needs is a weight-based calculation: about 2.5 ounces of formula per pound of body weight per day. A 14-pound baby, for example, would need around 35 ounces, while a 12-pound baby would land closer to 30. That said, most pediatric guidelines cap the recommended daily intake at about 32 ounces. Babies getting 32 ounces or more of formula each day are already meeting their nutritional needs, including vitamin D, and consistently exceeding that amount can mean your baby is taking in more calories than they need.
At 5 months, most formula-fed babies eat every 3 to 4 hours, which works out to 4 or 5 bottles a day. Each bottle will typically hold 6 to 8 ounces. Some feedings will be bigger than others, and that’s completely normal. Your baby might drain a full 8-ounce bottle after a long nap and only take 5 ounces an hour before bedtime.
How Breastfed Babies Differ
Measuring ounces is trickier when you’re breastfeeding, because you can’t see exactly how much your baby is taking in. Instead of counting ounces, the better markers are feeding frequency and your baby’s behavior. Breastfed babies nurse every 2 to 4 hours on average, for a total of 8 to 12 sessions in 24 hours. Some of those sessions will be long and leisurely, others quick. Both patterns are normal. Babies generally take what they need and stop when they’re full.
If you’re pumping and bottle-feeding breast milk, the daily total is often slightly less than the formula equivalent because breast milk is more efficiently absorbed. Many breastfed babies take 24 to 30 ounces of pumped milk per day at this age, though individual variation is wide.
Reading Your Baby’s Hunger Cues
No chart can tell you exactly what your individual baby needs on a given day. Your baby’s own signals are the most reliable guide. Hunger cues at this age include putting hands to their mouth, turning their head toward the breast or bottle, smacking or licking their lips, and clenching their fists. These signs appear before crying. If you wait until your baby is upset, feeding can be harder because a frustrated baby has trouble latching or settling into a bottle.
Fullness cues are just as important to watch for. When your baby closes their mouth, turns their head away from the breast or bottle, or relaxes their hands, they’re telling you they’ve had enough. Pushing past these signals to finish a bottle can override your baby’s natural ability to regulate their own intake.
Night Feedings at 5 Months
Most 5-month-olds still wake at least once during the night to eat, and some wake two or three times. This is especially common for breastfed babies. As babies get older, nighttime feeds naturally decrease in frequency. For formula-fed babies, phasing out night feeds is generally reasonable to consider starting around 6 months. For breastfed babies, night feeds often continue longer, and many experts suggest waiting until around 12 months before actively weaning off nighttime nursing.
If your baby is waking frequently but not eating much at each feeding, they may be waking for comfort rather than hunger. But at 5 months, genuine overnight hunger is still developmentally appropriate.
Should You Offer Solids Yet?
Five months falls in a gray zone. Solid foods shouldn’t be introduced before 4 months, and most guidelines recommend waiting until around 6 months. However, some babies are developmentally ready a bit earlier. The signs to look for: your baby can sit up with support, has good head and neck control, opens their mouth when food is offered, swallows food instead of pushing it out with their tongue, and is reaching for objects and bringing them to their mouth.
If your baby checks most of those boxes, a small amount of pureed food (a tablespoon or two) can complement their milk intake. At this age, solids are practice, not a calorie source. Breast milk or formula should still make up the vast majority of your baby’s diet.
Skip the Water for Now
Breast milk and formula provide all the hydration a 5-month-old needs. Giving water to babies under 6 months carries real risk. Too much water dilutes sodium levels in a baby’s blood, which can lead to seizures, brain damage, or worse. If you feel your baby needs a small amount of water (during hot weather, for example), limit it to 2 to 3 ounces at a time and only after they’ve finished a full feeding of milk or formula. But in most cases, extra water simply isn’t necessary.
Signs Your Baby Is Getting Enough
The best evidence that your baby is eating well isn’t on a measuring cup. It’s on the growth chart. Steady weight gain along your baby’s own curve, 6 or more wet diapers a day, and a baby who seems alert and content between feedings all point to adequate intake. Babies go through growth spurts where they’ll suddenly want to eat more for a few days, then settle back to their usual pattern. A single day of eating less or more than average is rarely a concern. The trend over weeks is what matters.