Newborns drink surprisingly little milk at first. In the first day of life, a baby’s stomach holds only about 1 to 1.5 teaspoons (5 to 7 milliliters) per feeding. By the end of the first week, that amount climbs to roughly 1 to 2 ounces per feeding, and it continues to increase steadily over the first few months.
How Much Newborns Eat Day by Day
A newborn’s stomach is tiny at birth and grows rapidly over the first ten days. Here’s what that looks like in practice:
- Day 1: 1 to 1.5 teaspoons (5 to 7 ml) per feeding
- Day 3: About 4.5 to 5.5 teaspoons (22 to 27 ml) per feeding
- Day 10: 2 to 2.75 ounces (60 to 81 ml) per feeding
- 3 to 4 months: About 4 ounces (118 ml) per feeding
Those first-day amounts can feel alarmingly small, but they match the size of the baby’s stomach perfectly. Colostrum, the thick early breast milk, comes in small volumes for exactly this reason. By the end of the first week, both breast milk supply and stomach capacity have grown enough that feedings reach 1 to 2 ounces.
Total Daily Intake
Once feeding is well established, formula-fed infants typically consume about 24 to 32 ounces of formula per day. Breastfed babies take in similar total volumes, though measuring exact amounts is harder since milk goes directly from breast to baby. The American Academy of Pediatrics notes that by the time babies settle into a routine, individual feedings land around 4 to 6 ounces each.
That 24-to-32-ounce range is a general guideline, not a strict target. Some babies consistently drink a bit less or more. What matters most is steady weight gain and your baby’s own hunger and fullness signals.
How Often Newborns Feed
Because each feeding is so small in the early days, newborns eat frequently. Most breastfed babies nurse 8 to 12 times in 24 hours, which works out to roughly every 1 to 3 hours. As they get a bit older, feedings tend to space out to every 2 to 4 hours. Formula-fed babies often follow a similar pattern, though formula digests a bit more slowly than breast milk, so some formula-fed newborns go slightly longer between feedings.
Those frequent feedings aren’t a sign that something is wrong. Small stomachs empty quickly, and newborns need a lot of calories relative to their body size to support rapid growth.
Cluster Feeding Is Normal
Many newborns go through periods, especially in the evening, where they want to eat every 30 minutes to an hour. This is called cluster feeding, and it doesn’t mean your baby isn’t getting enough milk. Babies often cluster feed as a way of “tanking up” before a longer stretch of sleep at night. It can feel relentless, but it typically passes on its own and is a healthy part of newborn feeding behavior.
Hunger and Fullness Cues to Watch For
Rather than measuring every ounce, pediatricians recommend paying attention to your baby’s behavior. Hunger cues include putting hands to the mouth, turning the head toward your breast or a bottle, smacking or licking lips, and clenching fists. Crying is actually a late hunger signal, so catching those earlier cues makes feeding easier for both of you.
When your baby is full, you’ll notice them closing their mouth, turning their head away from the breast or bottle, and relaxing their hands. Trying to push extra milk past these signals can lead to overfeeding and spit-up. Let your baby set the pace.
How to Tell Your Baby Is Getting Enough
In the first few months, healthy newborns gain about 1 ounce (28 grams) per day. Most babies lose a small amount of weight in the first few days after birth, then regain it by about 10 to 14 days old. After that, consistent daily weight gain is the most reliable sign that feeding is going well.
Wet and dirty diapers are another useful indicator. By the end of the first week, you should see at least 6 wet diapers a day. If your baby seems satisfied after feedings, is gaining weight steadily, and is producing plenty of wet diapers, the volume of milk per feeding is almost certainly fine, even if it looks like less than you expected.