How Much Should a Newborn Eat?
Newborns should eat every 2–3 hours, about 8–12 times per 24 hours. In the first days, small amounts (15–45ml) are normal as your milk comes in or as baby adjusts to formula. By 1 month, intake increases significantly.
Key Takeaways
- Newborns should feed 8–12 times per 24 hours, never let a newborn go more than 4 hours without feeding in the first weeks.
- Formula-fed newborns take 45–90ml (1.5–3oz) per feeding in week 1, increasing to 90–120ml by weeks 2–4.
- For breastfed babies, use diaper output (not volume) to assess intake: 6+ wet diapers per day from day 5 onward indicates adequate feeding.
- Crying is a late hunger cue, feed earlier when you see rooting, sucking on fists, or licking lips.
- Newborns should regain birth weight by 2 weeks and then gain 150–200g (5–7oz) per week through the first 3 months.
Feeding Amounts by Age and Method
Formula-Fed Babies
| Age | Amount per Feeding | Feeds per Day |
|---|---|---|
| Day 1–2 | 15–30ml (0.5–1oz) | 8–12 |
| Day 3–7 | 45–60ml (1.5–2oz) | 8–12 |
| 2–4 weeks | 60–90ml (2–3oz) | 8–10 |
| 1–2 months | 90–120ml (3–4oz) | 6–8 |
| 2–4 months | 120–180ml (4–6oz) | 6 |
Breastfed Babies
Breastfed babies cannot be measured by volume. Instead, use these indicators:
- Feed on demand, whenever baby shows hunger cues
- Aim for 8–12 feeds per 24 hours in the newborn period
- Both breasts per session, approximately 10–20 minutes per side
- Baby should end the feed and release the breast on their own
How to Know Your Baby Is Getting Enough
Diaper Output (Most Reliable Indicator)
| Age | Wet Diapers | Bowel Movements |
|---|---|---|
| Day 1–2 | 1–2 | 1–2 (dark meconium) |
| Day 3–4 | 3–4 | 3–4 (transitioning) |
| Day 5+ | 6+ per day | 3–4 (yellow, soft) |
| After 1 month (BF) | 5–6 | Varies (1×/day to 1×/week) |
Weight Gain
- Newborns lose up to 10% of birth weight in first days, this is normal
- Should regain birth weight by 2 weeks
- Should gain 150–200g (5–7oz) per week through first 3 months
Hunger Cues to Watch For
Early signs (respond NOW):
- Rooting (turning head, opening mouth)
- Sucking on hands or fingers
- Licking lips
Late signs (harder feeding ahead):
- Crying, this means baby is already very hungry. Try to feed before this stage.
When to Call Your Pediatrician
Contact your doctor if:
- Baby has fewer than 6 wet diapers/day after day 4
- Hasn't regained birth weight by 2 weeks
- Is very sleepy and hard to wake for feeds (more than 4 hours between feeds in first weeks)
- Seems constantly hungry or never satisfied
- You're concerned about supply
🔗 Track feedings with our Feeding Tracker and see daily totals at a glance.
Sources: American Academy of Pediatrics (AAP). Newborn Feeding Guidelines; WHO. Breastfeeding Recommendations; NHS UK. How Much Milk Does My Baby Need?
Frequently Asked Questions
How much should a newborn eat per feeding?
Formula-fed newborns consume approximately 45–60ml (1.5–2oz) per feeding in the first week, increasing to 90–120ml by 2–4 weeks. Breastfed babies cannot be measured by volume, the AAP recommends feeding on demand and using diaper output (6+ wet diapers/day from day 5) as the primary indicator of adequate intake.
How often should I feed my newborn?
Every 2–3 hours, or 8–12 times in 24 hours. Do not let a newborn go more than 4 hours without feeding in the first few weeks, especially before birth weight has been regained. After 6 weeks with confirmed good weight gain, most pediatricians allow babies to sleep until they wake on their own.
How do I know if my baby is getting enough milk?
The most reliable signs: 6+ wet diapers per day from day 5 onward, regular bowel movements, steady weight gain (returning to birth weight by 2 weeks, then gaining 150–200g/week), and baby seeming satisfied after feeds. For breastfed babies, if you're ever unsure, a weighted feed with a lactation consultant provides accurate intake measurement.
What are the hunger cues I should watch for?
Early hunger cues (act now): rooting (turning head and opening mouth), sucking on hands or fingers, licking lips. Late hunger cue: crying. Feeding a baby who is already crying is harder, they are more agitated, may latch poorly, and may swallow more air. Try to respond before crying starts.
Sources
- AAP. Infant and toddler nutrition guidelines
- WHO. Global infant feeding recommendations
- CDC. Infant and toddler nutrition resources
🔧 Helpful Tools
- Baby Food Guide. Safe foods and introduction schedule for your baby
- Breastfeeding Tracker. Log feeds, track supply, and monitor nursing sessions
- All Baby Tools. Browse all free tools for pregnancy and baby care
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