How much milk does a baby need?
Bottle amounts by age in both ounces and milliliters, plus a simple way to sanity-check daily intake. Ranges are typical, not targets — your pediatrician's guidance always wins.
Bottle feeding amounts by age
| Age | Per feed | Per day |
|---|---|---|
| 0–1 week | 0.5–2 oz (15–60 mL) | Rapidly increasing |
| 1–4 weeks | 2–3 oz (60–90 mL) | ~18–24 oz (530–710 mL) |
| 1–2 months | 3–4 oz (90–120 mL) | ~22–28 oz (650–830 mL) |
| 2–4 months | 4–5 oz (120–150 mL) | ~24–32 oz (710–950 mL) |
| 4–6 months | 4–6 oz (120–180 mL) | ~24–32 oz (710–950 mL) |
| 6–12 months | 6–8 oz (180–240 mL) | ~24–30 oz (710–890 mL) plus solids |
The weight rule of thumb
A common formula-feeding estimate is about 2.5 oz per pound of body weight per day (roughly 150 mL per kg), spread across all feeds.
Breastmilk stays steadier
Exclusively breastfed babies often plateau around 24–30 oz (710–890 mL) per day from about one month onward, taking more frequent, smaller feeds.
Look at the week
Single feeds vary a lot. Weekly averages and steady weight gain tell you far more than any one bottle.
Switching between oz and mL
1 fluid ounce is about 29.6 mL. Hospital notes and pediatric guidance often use milliliters while bottles at home are marked in ounces, so a log that shows both avoids conversion mistakes at 3 a.m.
Signs of over- or under-feeding
- Frequent large spit-ups right after a full bottle may mean feeds are too big
- Turning away, sealing lips, or slowing down are stop cues — don't push the bottle
- Fewer wet diapers than usual or poor weight gain warrants a pediatrician call
- Pair intake with output using our diaper count guide
See daily totals in oz or mL
Nestli totals every feed and pump for the day and flips between ounces and milliliters with one tap.
Start tracking now!