How much should my baby eat?
In the first days, newborns take only tiny amounts — often half an ounce to an ounce (15–30 ml) per feed — and feed very often, 8–12 times a day. Amounts climb quickly: by the end of the first month many babies take 3–4 oz (90–120 ml) every 3–4 hours, reaching 6–8 oz (180–240 ml) at 4–5 feeds a day by around 6 months.
This calculator shows the typical per-feed range, feeds per day and an approximate daily total for your baby's age, drawn from AAP guidance. If you enter a weight, it also shows a weight-based formula estimate. Both are reference points — every baby is different.
Feed responsively, not by the number
Baby feeding amounts by age (chart)
Typical amount per feed and feeds per day, newborn to 12 months (AAP guidance):
| Age | Per feed | Feeds/day |
|---|---|---|
| Days 1–2 | 0.5–1 oz (15–30 ml)† | 8–12 |
| Rest of weeks 1–2 | 1–2 oz (30–60 ml) | 8–12 |
| By end of month 1 | 3–4 oz (90–120 ml) | 6–8 |
| 2–4 months | 4–6 oz (120–180 ml) | 6–8 |
| 4–6 months | 5–7 oz (150–210 ml)† | 5–7 |
| 6–12 months (+ solids from ~6 mo) | 6–8 oz (180–240 ml) | 4–5 |
Typical ranges from AAP / HealthyChildren.org and Nemours KidsHealth (see Sources) — guides for many babies, not targets for yours. † These two rows are typical estimates reasoned between cited ages: the sources give exact per-feed amounts at the first week, one month, two/four months and six months; the day 1–2 and 4–6 month figures fall between those.
The weight-based formula rule
A common AAP guide for formula is about 2½ oz per pound of body weight per day (roughly 160 ml per kg), up to a ceiling of about 32 oz (960 ml) in 24 hours. So an 8 lb baby works out to around 20 oz a day. This rule is most accurate under about 4 months; after solids start it overestimates milk needs. It's a starting point, not a quota — enter a weight above to see your baby's estimate alongside the age-typical range.
How do I know my baby is getting enough?
Steady weight gain and plenty of wet and dirty nappies are the most reassuring signs — a well-fed newborn soon has at least 5–6 wet nappies a day. If you're counting nappies, our Diaper Count Checker.
Twins, preemies & corrected age
PooPeeMilk is built twins-first, and twins often arrive early. If your baby was born before 37 weeks, turn on corrected age — your baby's age minus the weeks they were born early — for amounts that match their development rather than their birthday. Always follow your pediatrician's feeding plan for a premature baby.
When to call your pediatrician
Baby feeding FAQs
How much should a newborn eat?
In the first day or two, newborns take only about half an ounce to an ounce (15–30 ml) per feed and nurse or bottle-feed very often — 8–12 times in 24 hours. Amounts rise fast: by the end of the first month many babies take 3–4 oz (90–120 ml) roughly every 3–4 hours. Small, frequent feeds are completely normal early on.
How do I know my baby is getting enough?
The best signs are steady weight gain and plenty of wet and dirty nappies — a well-fed newborn typically has at least 5–6 wet nappies a day after the first week. Contentment after feeds and meeting growth milestones also reassure. If you're worried, our Diaper Count Checker and your pediatrician can help you check.
What is cluster feeding?
Cluster feeding is when a baby wants to feed very frequently — sometimes every 30–60 minutes — usually in the evening or during a growth spurt. It's normal and temporary, and it helps boost milk supply for breastfed babies. It doesn't mean you're not making enough milk; follow your baby's cues and it usually settles within a day or two.
What is paced bottle feeding?
Paced bottle feeding means holding the bottle more horizontally and letting your baby take breaks, so they drink at their own pace rather than gulping a full bottle quickly. It helps babies recognise fullness and reduces overfeeding, and it makes the bottle feel more like nursing — useful for mixed-fed and twin babies especially.
When do feeding amounts change?
Amounts increase steadily over the first months, then plateau as solids begin around 6 months. Per-feed amounts grow while the number of feeds drops — from 8–12 tiny feeds a day as a newborn to 4–5 larger feeds by 6 months. Growth spurts (often around 2–3 weeks, 6 weeks and 3 months) can temporarily increase appetite.
Log each feed in PooPeeMilk and see per-feed amounts, daily totals and trends — for one baby or twins, no spreadsheet required.
Get the iOS app- American Academy of Pediatrics (HealthyChildren.org) — Amount and Schedule of Baby Formula Feedings
- American Academy of Pediatrics (HealthyChildren.org) — How Often and How Much Should Your Baby Eat?
- American Academy of Pediatrics (HealthyChildren.org) — How to Tell if Your Breastfed Baby is Getting Enough Milk
- Nemours KidsHealth (physician-reviewed) — Formula Feeding FAQs: How Much and How Often