A 10-month-old typically needs about 24 ounces (720 mL) of formula per day, split across three to four bottles of 4 to 8 ounces each. That’s noticeably less than what your baby was drinking a few months ago, and the reason is simple: solid foods are now picking up a bigger share of their daily calories.
Daily Total and Per-Bottle Amounts
Between 8 and 12 months, a baby needs roughly 750 to 900 calories a day. About 400 to 500 of those calories should come from formula, which works out to approximately 24 ounces. A common rule of thumb is 2.5 ounces of formula per pound of body weight per day, but by 10 months most babies naturally settle closer to 24 ounces because solids are filling the gap.
The general upper limit is 32 ounces in 24 hours. Consistently going above that can crowd out solid foods, which matters at this age because your baby needs the iron, zinc, and variety of nutrients that formula alone doesn’t fully provide. If your baby is regularly draining more than 32 ounces and showing little interest in solids, it’s worth adjusting the balance.
Per bottle, most 10-month-olds drink 4 to 6 ounces at meals and 6 to 8 ounces before bed. Every baby is different day to day, so treat these as a range rather than a target to hit exactly.
What a Typical Day Looks Like
At 10 months, your baby should be eating or drinking something every 2 to 3 hours, which usually adds up to about three meals and two to three snacks. Formula fits into that rhythm alongside solid foods rather than replacing them. A sample day might look like this:
- Breakfast: 4 to 6 ounces of formula, plus cereal or scrambled egg with soft fruit
- Mid-morning snack: 4 to 6 ounces of formula with diced cheese or cooked vegetables
- Lunch: 4 to 6 ounces of formula, plus yogurt or pureed beans with cooked vegetables
- Afternoon snack: Soft fruit or a teething biscuit with a few ounces of water
- Dinner: 4 to 6 ounces of formula, plus diced meat or tofu with vegetables and pasta
- Before bed: 6 to 8 ounces of formula
Not every feeding slot needs a bottle. Some snacks pair better with water and finger foods. The goal is for formula and solids to complement each other throughout the day, not compete.
Balancing Formula With Solid Foods
Formula is still the primary source of nutrition between 6 and 12 months, but by 10 months, solids should be making up a meaningful portion of your baby’s diet. A practical way to think about it: roughly half of daily calories from formula, roughly half from food. If your baby is enthusiastically eating three meals of table food, they’ll naturally drink a little less formula, and that’s fine.
The reverse can also happen. Some 10-month-olds are pickier with solids and lean more heavily on the bottle. That’s normal in the short term, but it’s a good idea to keep offering a variety of textures and flavors at meals rather than defaulting to a bigger bottle. Offering formula after solids (instead of before) can help, because a hungry baby is more willing to explore new foods.
Water at This Age
Between 6 and 12 months, babies can have 4 to 8 ounces of plain water per day. Water doesn’t replace formula at this stage. It’s just a supplement, especially useful during meals to help with swallowing thicker foods. Offer it in a sippy cup or open cup to start building that skill before the eventual transition off bottles.
Night Bottles and Bedtime Feeds
Most 10-month-olds don’t need a middle-of-the-night bottle for nutrition. Their calorie needs can be fully met during daytime meals and snacks. A bedtime bottle of 6 to 8 ounces is still common and perfectly appropriate, but waking to feed overnight is more habit than hunger at this point for most babies. If your baby was born premature or has specific health concerns like failure to thrive, nighttime feeds may still be necessary.
Getting Ready for the Switch to Milk
At 10 months, you’re about two months away from a big milestone. The American Academy of Pediatrics recommends sticking with formula (not cow’s milk) as the primary drink until 12 months. Cow’s milk doesn’t have the right balance of nutrients for babies under one, particularly iron.
That said, once your baby turns 11 months, it’s reasonable to offer about an ounce of whole milk in a sippy cup once a day. This isn’t a nutritional switch. It’s a taste test and a chance to practice cup drinking, so the full transition at 12 months goes more smoothly.
Signs Your Baby Is Getting the Right Amount
Numbers are helpful guidelines, but your baby’s behavior and growth are the real indicators. A 10-month-old who is gaining weight steadily, producing plenty of wet diapers, and seems satisfied after feedings is almost certainly getting enough. Babies self-regulate their intake from day to day, so a 20-ounce day followed by a 28-ounce day is nothing to worry about.
If your baby consistently refuses formula, seems unusually fussy during feeds, or their weight gain has stalled, those are signs worth bringing up at your next well-child visit. But for most 10-month-olds, the sweet spot of around 24 ounces of formula per day, paired with three meals of solid food, covers their nutritional needs well.