A 7-month-old typically drinks 24 to 32 ounces of breast milk or formula per day, spread across five or six feedings. That total gradually shifts downward as your baby eats more solid food, but breast milk or formula remains the primary source of nutrition at this age.
Daily Milk Intake at 7 Months
For formula-fed babies, the standard guideline from UC Davis Health is 5 to 7 ounces per bottle, offered every 3 to 4 hours during the day, for about five or six feedings total. That works out to roughly 25 to 35 ounces daily, though most babies land somewhere around 24 to 32 ounces once solids are part of the routine.
If you’re breastfeeding, the math is less precise because you can’t measure what your baby takes at the breast. Most breastfed 7-month-olds nurse about five or six times in 24 hours, on demand. As long as your baby is gaining weight steadily and producing plenty of wet diapers (six or more per day), they’re almost certainly getting enough.
How Body Weight Affects the Number
A more personalized way to estimate formula needs: babies generally need about 2.5 ounces of formula per pound of body weight per day, according to the American Academy of Pediatrics. So a 17-pound baby would need roughly 42.5 ounces if they were on formula alone. But because a 7-month-old is also eating solids, the actual formula intake is lower. This weight-based calculation is most useful as an upper ceiling, not a daily target.
If your baby consistently drinks well below that number and is also refusing solids, that’s worth mentioning to your pediatrician. But most babies self-regulate their intake surprisingly well.
How Solid Foods Change the Equation
At 7 months, your baby is still relatively new to solid foods. The CDC recommends offering something to eat or drink every 2 to 3 hours, which adds up to about three meals and two or three snacks throughout the day. Portion sizes are small at this stage: start with 1 or 2 tablespoons of food and let your baby guide how much they eat.
Solids at this age are more about learning to eat than providing major calories. Breast milk or formula should still make up the majority of your baby’s diet. A practical way to handle this: offer the breast or bottle first, then follow with solids about 20 to 30 minutes later. That way, your baby gets the nutrition they need from milk before filling up on food that’s lower in calories and fat.
You’ll likely notice that as your baby gets more enthusiastic about solids over the next few months, they naturally start dropping an ounce here or a feeding there. That’s normal. The transition is gradual, and by 12 months, solid food takes over as the primary nutrition source.
What About Water?
Once babies start eating solids, small amounts of water are appropriate. The CDC recommends 4 to 8 ounces of water per day for babies between 6 and 12 months old. Offer it in an open cup or straw cup with meals. The goal isn’t hydration (breast milk and formula handle that) but rather getting your baby used to drinking water and practicing cup skills.
Keep water to that range. Too much can fill your baby’s small stomach and displace the breast milk or formula they actually need. Juice, cow’s milk, and other beverages are not recommended before 12 months.
Signs Your Baby Is Getting Enough
Counting ounces is one approach, but your baby gives you plenty of other signals. A well-fed 7-month-old will produce at least six wet diapers a day, gain weight consistently (your pediatrician tracks this at well-child visits), seem satisfied after feedings rather than fussy and rooting, and stay alert and active during wake windows.
Some days your baby will drink more, and some days less. Growth spurts, teething, minor illnesses, and even the weather can shift intake day to day. A single low day isn’t a concern. A pattern of consistently low intake over several days, especially paired with fewer wet diapers or weight loss, is worth a call to your pediatrician.
Common Reasons a 7-Month-Old Drinks Less
Teething is the most frequent culprit at this age. Sore gums can make sucking uncomfortable, and your baby may take shorter, more frequent feedings instead of full bottles. Distractibility is another factor: babies at 7 months are far more interested in the world around them than they were as newborns, and they may pop off the breast or push the bottle away to look at something more interesting. Feeding in a quiet, dimly lit room can help.
A sudden, sharp drop in intake that lasts more than a day or two, especially if your baby seems lethargic or is running a fever, points to illness rather than a normal fluctuation.