A newborn drinks surprisingly little breast milk at first, starting at just 2 to 10 milliliters per feeding on day one (less than half a tablespoon). That amount increases steadily over the first few weeks, reaching 2 to 3 ounces per feeding by the end of the first month. The key is that newborns eat frequently, so those small amounts add up.
Feeding Volumes Day by Day
A newborn’s stomach is tiny at birth, roughly the size of a cherry. It can only hold a few milliliters at a time, which is why the early colostrum your body produces comes in such small quantities. Here’s what normal intake looks like as the stomach grows:
- Day 1 (0 to 24 hours): 2 to 10 milliliters per feeding
- Day 2 (24 to 48 hours): 5 to 15 milliliters per feeding
- Day 3: About 1 ounce (30 ml) per feeding, stomach now walnut-sized
- Day 7: 1 to 2 ounces per feeding, stomach about the size of an apricot to an egg
- Weeks 2 and 3: 2 to 3 ounces per feeding
- 1 to 6 months: 3 to 4 ounces per feeding
These numbers apply whether your baby is nursing directly or drinking expressed breast milk from a bottle. The volumes look small in the first few days, but they match exactly what your baby’s stomach can handle. There’s no need to supplement unless a healthcare provider identifies a specific concern.
How Often Newborns Feed
Most newborns breastfeed 8 to 12 times in a 24-hour period, or roughly every 2 to 4 hours. Some babies eat even more frequently, nursing every 1 to 3 hours, especially in the early days when feedings help establish your milk supply. Overnight, some babies stretch to a 4- or 5-hour sleep interval, but during the day, expect frequent sessions.
If you do the math on day one, 8 to 12 feedings of 2 to 10 milliliters means your baby takes in somewhere between 16 and 120 milliliters total for the whole day. By the end of the first week, at 1 to 2 ounces across 8 to 12 feedings, daily intake climbs to roughly 8 to 24 ounces. By one month, most breastfed babies consume around 19 to 30 ounces per day.
Cluster Feeding and Growth Spurts
There will be stretches where your baby seems to want to eat constantly. During cluster feeding, some babies nurse every 30 minutes to an hour, often in the evenings. This is normal and doesn’t mean your supply is low. Cluster feeding helps signal your body to produce more milk.
Growth spurts tend to trigger these intense feeding periods. They commonly happen around 2 to 3 weeks, 6 weeks, 3 months, and 6 months. During a growth spurt, your baby may be fussier than usual and want to nurse longer at each session, sometimes as often as every 30 minutes. These phases typically last a few days before settling back into a more predictable rhythm.
How to Tell Your Baby Is Getting Enough
Since you can’t measure volume at the breast, diapers and weight are your best indicators. After day 5, your newborn should produce at least 6 wet diapers per day, along with regular dirty diapers (though the exact number of poopy diapers varies from baby to baby). Newborns typically lose a few ounces in the first days after birth, but they should regain that weight and return to their birth weight by about 2 weeks of age.
Your baby also gives you real-time feedback through hunger and fullness cues. Early hunger signs include fists moving toward the mouth, head turning to look for the breast, sucking on hands, and lip smacking. Crying is actually a late hunger cue, so catching those earlier signals makes feeding easier for both of you. When your baby is full, they’ll release the breast on their own, turn away, and visibly relax their body, often opening their fists.
Bottle Feeding With Expressed Milk
If you’re pumping and bottle feeding, the same volume guidelines apply. Offer the amount that matches your baby’s age: a few milliliters in the first couple of days, 1 to 2 ounces by the end of the first week, and 2 to 3 ounces by weeks two and three. By one month through six months, most babies take 3 to 4 ounces per bottle.
One thing to watch for with bottles is overfeeding. Milk flows more easily from a bottle than from the breast, so babies can drink faster than their fullness signals kick in. Paced bottle feeding helps prevent this. The idea is to hold the bottle more horizontally, pause periodically during the feeding, and let your baby control the pace rather than tipping the bottle to keep milk flowing. Watch for the same fullness cues you’d look for during nursing: turning away, relaxing the body, losing interest in sucking. If your baby finishes a bottle and still seems hungry, offer another half ounce to an ounce rather than preparing a large bottle upfront.
Breast milk intake plateaus around 3 to 4 ounces per feeding from about one month onward and stays relatively stable through six months. Unlike formula, where the volume per feeding increases as babies grow, breast milk composition changes over time to meet nutritional needs, so the total volume doesn’t need to keep climbing.