How often and how much should a newborn eat?

How often newborns feed

Newborns eat often because their stomachs are small. Feed whenever your baby shows hunger rather than on a fixed clock.

Breastfed newborns nurse about every 2 hours, measured from the start of one feeding to the start of the next, for roughly 8 to 12 feedings in 24 hours. Bottle-fed newborns usually eat every 2 to 3 hours, at least about 8 times a day.

In the first few weeks, do not let your newborn sleep longer than about 4 to 5 hours without feeding. If your baby sleeps through a feeding, wake them to eat until they are gaining weight steadily and your pediatrician says longer stretches are fine.

How much formula by age

Formula amounts grow as your baby does. In the first days and first week, offer about 1 to 2 ounces (30 to 60 milliliters) per feeding, every 2 to 3 hours.

Over the first month, amounts rise to about 3 to 4 ounces (90 to 120 milliliters) per feeding, with feedings spacing out to every 3 to 4 hours by the end of month one.

A useful rule of thumb is about 2.5 ounces of formula per pound of body weight per day, up to a maximum of about 32 ounces in 24 hours. Let your baby stop when full rather than pushing the bottle.

• First days to first week: 1 to 2 ounces per feeding, every 2 to 3 hours
• By end of month one: 3 to 4 ounces per feeding, every 3 to 4 hours
• Daily guide: about 2.5 ounces per pound of body weight, up to about 32 ounces

Read hunger and fullness cues

Watch for early hunger cues and feed before your baby gets upset. Crying is a late sign of hunger, not the first one.

Early cues include rooting or turning the head toward the breast or bottle, bringing the hands to the mouth, licking or smacking the lips, sticking out the tongue, and opening the mouth. Clenched hands are common when a baby is hungry.

Stop when your baby shows fullness: turning away, closing the mouth, relaxing the hands, or slowing down and losing interest.

Signs your baby is getting enough

Wet and dirty diapers are a reliable measure of intake in the first weeks.

In the first few days, expect 2 to 3 wet diapers a day. After day 4 or 5, expect at least 5 to 6 wet diapers a day, plus several stools. Steady weight gain at your pediatrician's visits is the other key sign.

Call your pediatrician if your baby is making fewer wet diapers than expected, seems hard to wake for feedings, or is not back to birth weight by about 2 weeks. For any baby 3 months or younger, a rectal temperature of 100.4 degrees Fahrenheit (38 degrees Celsius) or higher means call right away.

Related questions

How many ounces should a 1-month-old drink?

By the end of the first month, formula-fed babies usually take about 3 to 4 ounces (90 to 120 milliliters) per feeding, every 3 to 4 hours. A daily guide is roughly 2.5 ounces per pound of body weight, up to about 32 ounces in 24 hours. Let your baby stop when full rather than finishing every bottle. Breastfed babies feed on demand rather than by measured ounces.

Should I wake my newborn to feed?

In the first few weeks, yes, if needed. Do not let your newborn sleep longer than about 4 to 5 hours without feeding until they are gaining weight steadily. Newborns need frequent feedings, about 8 to 12 a day. Once your baby is back above birth weight and your pediatrician confirms it is fine, you can let longer sleep stretches happen on their own.

What are the signs my newborn is hungry?

Early hunger cues include rooting or turning toward the breast or bottle, bringing the hands to the mouth, licking or smacking the lips, sticking out the tongue, and opening the mouth. Crying is a late hunger cue, so try to feed before your baby gets to that point. After a good feeding your baby will relax, unclench the hands, and lose interest in the bottle or breast.

Sources & further reading

1. HealthyChildren.org (AAP) — How Often and How Much Should Your Baby Eat
2. HealthyChildren.org (AAP) — Amount and Schedule of Formula Feedings
3. CDC — How Much and How Often to Feed Infant Formula
4. CDC — Signs Your Child Is Hungry or Full

This article reflects current AAP, CDC, and other public-health guidance and is for educational purposes only. It does not constitute medical advice. ParentFlow is a wellness companion — not a substitute for your pediatrician. For any medical concern, contact your healthcare provider.