How Much Milk Should a Newborn Eat? A Day-by-Day Guide
Few questions cause more 2 a.m. anxiety than "is my baby eating enough?" The good news: newborn appetites follow a fairly predictable curve, and your baby's cues are the most reliable guide of all.
Feeding amounts make more sense in context — read about cluster feeding, getting a good breastfeeding latch, and telling reflux from normal spit-up.
Quick answer: amounts by age
| Age | Per feed | Feeds / 24h | Daily total |
|---|---|---|---|
| Day 1 | 5–7 ml (a teaspoon) | 8–12 | ~30–60 ml |
| Days 2–3 | 14–22 ml | 8–12 | ~180 ml |
| Week 1 | 30–60 ml (1–2 oz) | 8–12 | ~300–450 ml |
| Weeks 2–4 | 60–90 ml (2–3 oz) | 8–10 | ~450–700 ml |
| 1–2 months | 90–120 ml (3–4 oz) | 7–9 | ~600–900 ml |
| 2–4 months | 120–150 ml (4–5 oz) | 6–8 | ~750–1000 ml |
| 4–6 months | 150–210 ml (5–7 oz) | 5–7 | ~900–1200 ml |
A common rule of thumb for formula-fed babies: 150–200 ml per kg of body weight per day (about 2.5 oz per pound), up to a max of roughly 1 litre / 32 oz a day.
Cues beat charts
Watch your baby, not the bottle. Early hunger cues include:
- Stirring, turning the head, mouth opening (rooting)
- Bringing hands to the mouth, sucking on fists
- Lip-smacking or soft fussing
Crying is a late hunger cue — try to feed before your baby gets there. Signs of a full baby: relaxing the hands, turning away, slowing down, or falling asleep content.
Breastfeeding: you can't see the ounces
If you're nursing, you'll never measure intake directly — so track output instead:
- Wet diapers: roughly one per day of life for the first week, then 6+ heavy wet diapers a day.
- Stools: several a day in the early weeks; mustard-yellow and seedy once your milk is in.
- Weight: babies can lose up to ~7–10% in the first days, then should be back to birth weight by about 2 weeks.
When to call your pediatrician
- Fewer than 6 wet diapers a day after the first week
- No weight gain or continued weight loss after 2 weeks
- Consistently sleeping through feeds and hard to wake
- Signs of dehydration: sunken soft spot, no tears, very dark urine
Where tracking helps
Logging each feed — time, side or amount, and diapers — turns "I think she's eating enough" into a clear picture you can show your pediatrician. In Baby Signal, LogLab captures bottle amounts, nursing sessions, and diapers in a couple of taps, then surfaces the daily totals and patterns automatically, so you spend less time doing math at 2 a.m. and more time reading your actual baby.
Every baby's intake shifts day to day. Baby Signal helps you track feeds and see whether your baby is getting enough. Get Baby Signal.
A note on this guide: Baby Signal’s articles are written to be practical and reassuring, drawing on guidance from recognized health authorities. This is general information, not medical advice — for urgent or personal health concerns, always contact your pediatrician or emergency services.
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