How Much Milk Should An Infant Drink? | Feeding By Age

When you ask how much milk should an infant drink?, you are actually asking how to match your baby’s appetite with safe ranges. New parents often hear different numbers from relatives, online charts, and even other families at the clinic, which can feel confusing when you just want your baby to grow, sleep, and stay content.

This guide brings together practical ranges from pediatric sources and everyday feeding patterns. It compares breast milk and formula intake, shows how needs shift during the first year, and explains which signs show that your baby is getting the right amount. It is general guidance only, so always follow advice from your baby’s own doctor or midwife if it differs.

How Much Milk Should An Infant Drink By Age?

Milk needs change quickly during the first year, so any single number will be too rigid. Instead, think in ranges for each age, and watch your baby’s cues inside those ranges. The table below offers broad targets that line up with common advice from child health services.

Age<!–	Typical Daily Milk Amount	Notes
0–1 week	10–20 oz (300–600 ml)	Small, frequent feeds; tummy still tiny.
1–4 weeks	16–24 oz (480–720 ml)	Feeds about 8–10 times in 24 hours.
1–3 months	22–30 oz (660–900 ml)	4–6 oz per feed, about 6–8 feeds.
3–6 months	24–32 oz (720–960 ml)	5–7 oz per feed, about 5–6 feeds.
6–9 months	20–30 oz (600–900 ml)	Milk plus two or three small solid meals.
9–12 months	16–24 oz (480–720 ml)	Solids now provide more of the energy needed.
12 months	16–20 oz (480–600 ml)	Breast milk or full-fat cow’s milk alongside meals.

These figures assume a healthy baby who was born at term. If your child was premature, has a medical condition, or is gaining weight slowly, you may see a different plan from your health team. Let that plan win over any general chart when you think about how much milk should an infant drink?

Breastfed babies take milk in a slightly different pattern from formula-fed babies. Breast milk is easier to digest, so many breastfed babies drink smaller amounts more often, while formula-fed babies often settle into larger feeds every three to four hours.

Breastfed Infant Milk Intake

For breastfed babies, the main rule is simple: feed on demand. Large groups such as the World Health Organization recommend breast milk only for the first six months, which means no extra water or juice during that time. They also advise breastfeeding on demand through the day and night, then continuing alongside solid foods up to two years and beyond.

Because feeding is on demand, you will not measure exact daily ounces for most breastfed babies. Even so, many babies between one and six months often end up in the 24 to 32 ounce range over a day, similar to formula-fed babies. Your baby may cluster feed in the evening or during growth spurts; that short burst of frequent feeds does not usually mean that something is wrong.

Instead of tracking every drop, pay close attention to your baby’s behaviour at the breast. A baby who latches well, swallows in a steady rhythm, then relaxes and releases the breast on their own has likely taken a good feed. Softening of the breast, longer pauses between sucks, and a calm look also point in the right direction.

Wet and dirty nappies offer more clues. In the first week you should see the number of wet nappies rise each day, then settle at around six or more pale, heavy wets in 24 hours once feeding is established. Stools change from dark meconium to mustard-coloured, loose stools during the first days of life. If nappies stay dry or the stool pattern does not progress, speak with your midwife, health visitor, or pediatrician quickly.

When To Weigh And When To Worry

Weight gain trends matter more than any single measurement. Many babies lose up to ten percent of birth weight, then regain it by about two weeks. After that, steady gains along the growth curve show that milk intake matches your baby’s needs. Sudden drops or a long, flat line on the chart need a review with a health professional.

Formula-Fed Infant Milk Intake

Formula feeding makes it easier to see exact volumes, which can be reassuring but can also tempt caregivers to push a baby to finish every bottle. Many national health services and the American Academy of Pediatrics suggest that, after the first week, formula-fed infants take around 150 to 200 ml of formula per kilogram of body weight per day up to about six months of age. That usually lands in the same 24 to 32 ounce range as breastfed babies.

Beyond six months, formula intake usually drops slightly as solid foods take over more of the energy supply. By nine to twelve months, many formula-fed babies drink around 16 to 24 ounces per day, with three main meals and one or two snacks.

If you use formula, always mix it exactly as the tin instructs. Adding extra scoops to “top up” calories can strain a baby’s kidneys and does not give a healthy start. Under-diluting can also leave a baby short on energy and nutrients. Formula packs match public health mixing instructions, so treat them as non-negotiable.

Preventing Overfeeding With Bottles

Bottles flow faster than the breast, so a baby may finish a bottle even when already full. To protect your baby’s hunger and fullness cues, try paced bottle feeding. Hold your baby more upright, keep the bottle at a slight angle so that milk does not gush, and pause during the feed to give time for burps. Offer the bottle again only if your baby still shows clear hunger signs.

Watch for regular gagging, large spit-ups, or very rapid weight gain, which can point to overfeeding. On the other side, small feeds, long gaps, and sleepy behaviour during most of the day can signal that your baby is not taking enough.

Switching From Milk To More Solids

Around six months, most babies start tasting purees or soft finger foods while still relying on milk for most of their energy. Groups such as UNICEF and the World Health Organization state that complementary foods should join, not replace, breast milk or formula at this stage. During this period, many babies still drink close to 24 ounces a day, though intake can dip a little on days when solids are more interesting.

Between nine and twelve months, appetite can swing. Some days your child may be far more excited about yoghurt, soft fruit, or mashed vegetables than about the breast or bottle. On other days, teething or illness can reduce interest in solids, and milk intake rises again. Over the week, the mix of milk and solids should still meet growth needs.

When Cow’s Milk Can Replace Infant Milk

By the first birthday, many families think about swapping formula for whole cow’s milk. Paediatric bodies often advise waiting until twelve months before offering cow’s milk as the main drink. At that point, a common target is 16 to 20 ounces of milk per day, spread over cups, with the rest of energy coming from food.

More than about 24 ounces of cow’s milk per day can crowd out iron-rich foods and raise the risk of anaemia. If your toddler loves milk, try offering water with snacks and keeping milk to set meal and snack times so that appetite for other foods stays strong.

Signs Your Infant Is Getting Enough Milk

Numbers on a chart give a starting point, but your baby’s body tells the real story. The signs below combine daily observations that link well with healthy intake.

Hunger And Fullness Cues

Before feeds, many young babies show hunger with rooting, hand-to-mouth movements, sucking on fists, or restlessness. Crying tends to be a late hunger sign. Feeding early, when cues are still gentle, often leads to calmer feeds and better milk transfer.

During and after feeds, watch for slowing of sucking, relaxed hands and arms, and a content look. A full baby may turn away from the breast or bottle, push the teat out of the mouth, or fall into a calm sleep. Respecting these cues helps you avoid forcing extra ounces just because the bottle is not empty or the clock says it is “time.”

Diapers, Growth, And Mood

Once feeding is established, six or more heavy wet nappies in a day, regular soft stools, and steady head growth all point toward enough milk. Growth charts used by health visitors and paediatric clinics give a visual track of how weight and length change over time. Your baby does not need to land on a particular centile; the pattern matters more than the exact line.

Over time you will learn your baby’s rhythm, and small shifts in intake from day to day are normally expected.

Use the ranges in this article as a loose map, then let nappies, growth, and content moments fill in the detail too.

Quick Reference: Sample Bottle Sizes Through The First Year

This table pulls the ideas above into simple bottle sizes that many families find practical. Use it as a rough planning tool not as a strict rulebook.

Age	Volume Per Feed	Feeds In 24 Hours
First days	0.5–1 oz (15–30 ml)	8–12
End of week 1	1.5–2 oz (45–60 ml)	8–10
2–8 weeks	2–4 oz (60–120 ml)	7–9
2–4 months	4–6 oz (120–180 ml)	5–7
4–6 months	5–7 oz (150–210 ml)	4–6
6–9 months	4–6 oz (120–180 ml)	3–5 plus meals
9–12 months	3–5 oz (90–150 ml)	3–4 plus meals

When To Talk With A Health Professional

Feed patterns that sit a little above or below the ranges in this article can still be normal if your baby is growing well and seems content. The situations below call for prompt care:

• Fewer than five wet nappies in 24 hours after the first week.
• Dark urine, dry mouth, or a sunken soft spot on the head.
• No stool for several days in a young baby, along with discomfort.
• Feeding that is always painful for the parent.
• Rapid breathing, blue lips, or any trouble breathing during feeds.
• Repeated projectile vomiting or green vomit.
• Loss of interest in feeding or weight loss after the first two weeks.

In these cases, contact your paediatric clinic, midwife service, or emergency care line straight away. Prompt review can protect your baby’s health and give you clear, personalised advice on how much milk should an infant drink? for your child’s specific situation. If you are unsure, trust your instinct and ask for help early from professionals.