A 6-month-old typically drinks 24 to 32 ounces of breast milk or formula per day, spread across 4 or 5 feedings. That works out to roughly 6 to 8 ounces per feeding. The exact amount varies from baby to baby, and it shifts once solid foods enter the picture.
Daily Totals and Per-Feeding Amounts
At 6 months, most babies settle into a pattern of 4 or 5 bottle or breastfeeding sessions every 24 hours, taking in 6 to 8 ounces each time. Formula-fed babies should generally stay at or below 32 ounces (960 mL) of formula per day. There’s no exact equivalent measurement for breastfed babies since you can’t measure what comes directly from the breast, but the caloric intake is similar.
If your baby consistently wants more than 32 ounces of formula in a day, that’s worth mentioning to your pediatrician. It can sometimes signal that feedings are being used to soothe fussiness rather than actual hunger, or it may simply mean your baby is ready for solid foods to round out their nutrition.
How Solid Foods Change Milk Intake
Six months is the age most pediatricians recommend introducing solid foods, and this directly affects how much milk your baby drinks. Babies have a built-in self-regulating mechanism: as they take in more calories from solids, they naturally cut back on milk. Research from UC Davis found that breastfed infants who started solids reduced both the frequency and duration of nursing sessions, while exclusively breastfed babies of the same age maintained their usual intake.
This is normal and expected. The key is that breast milk or formula remains the primary source of nutrition at 6 months. Solids at this stage are more about exposure to new textures and flavors than caloric replacement. A few tablespoons of pureed vegetables or cereal won’t dramatically change daily milk volume, but as your baby eats more solid food over the coming weeks, you’ll likely notice shorter or fewer milk feedings.
Breastfed vs. Formula-Fed Babies
Formula-fed babies tend to follow more predictable volume patterns because you can see exactly how many ounces go into the bottle. The 6 to 8 ounce range per feeding is a reliable guide. Breastfed babies, on the other hand, regulate their own intake at the breast, and individual feedings can vary widely. One session might be a quick 5-minute snack, and the next could be a long, full feeding.
If you’re pumping and bottle-feeding breast milk, the same general volumes apply. Some breastfed babies prefer slightly more frequent, smaller feedings compared to formula-fed babies, which is perfectly fine as long as the overall daily intake stays in a healthy range.
How to Tell Your Baby Is Getting Enough
Since you can’t always measure intake precisely, especially with breastfeeding, wet diapers are the most reliable everyday indicator. A well-hydrated baby produces at least 6 wet diapers per day, with no gap longer than 8 hours between them. If you’re consistently hitting that number, your baby is almost certainly getting enough milk.
Weight gain is the other important marker. By 6 months, the rapid growth of early infancy slows down. Many babies gain about 10 grams or less per day at this age, which is noticeably slower than the first few months. Your pediatrician tracks this on a growth chart, and what matters most is a consistent curve, not a specific number on the scale.
Reading Your Baby’s Hunger and Fullness Cues
At 6 months, babies are better at communicating when they’ve had enough. Fullness cues include pushing the bottle away, turning their head to the side, closing their mouth, or using hand motions and sounds to signal they’re done. These are reliable signals. Your baby doesn’t need to finish every bottle or empty both breasts at every feeding.
Hunger cues at this age go beyond crying. Reaching for the bottle, opening the mouth when food is nearby, or getting excited at the sight of a feeding are all signs your baby is ready to eat. Feeding on demand, rather than on a rigid schedule, helps babies maintain that natural ability to self-regulate their intake.
Water and Other Drinks
Once your baby turns 6 months, you can start offering small amounts of water, particularly alongside solid foods. The CDC recommends 4 to 8 ounces of water per day for babies between 6 and 12 months. This is a supplement, not a replacement for milk. Offering water in a sippy cup during meals helps your baby practice drinking and supports digestion of new solid foods, but breast milk or formula should still make up the vast majority of their fluid intake.
Juice, cow’s milk, and plant-based milks are not appropriate at this age. Stick with breast milk, formula, and small amounts of plain water.