Unlike formula, breast-milk intake stays about the same from 1 to 6 months (≈ 750 ml a day) because breast milk changes to match the baby. Use this to size bottles of pumped milk for a carer.
| Age | Typical intake |
|---|---|
| Days 1–2 | 5–15 ml per feed (colostrum) |
| Days 3–7 | 30–60 ml per feed |
| 1–6 months | 90–120 ml per feed; ~750 ml a day |
| 6–12 months | milk falls slowly as solids increase |
This calculator is also in our free app. Sign in with the same account to keep your history in sync.
Breastfed babies drink about 750 ml (25 oz) a day between 1 and 6 months — and the amount does not rise much over that time, because breast milk changes to meet the baby's needs. That's why bottles of breast milk are smaller than formula bottles.
Enter your baby's age and how many feeds they have a day to get the right bottle size for a carer or nursery.
| Age | 3 months |
| Feeds per Day | 8 |
| Breast milk per day (average) | 750 ml (25 oz) |
| Per bottle / feed | 94 ml (3.2 oz) for 8 feeds |
| Normal range per day | 570–900 ml (19–30 oz) |
| Signs of enough milk | 6+ wet nappies a day after day 5, steady weight gain, content after feeds |
750 ml (25 oz); 94 ml (3.2 oz) for 8 feeds.
Try this example →| Age | 0.5 months |
| Feeds per Day | 10 |
| Breast milk per day (average) | 600 ml (20 oz) |
| Per bottle / feed | 60 ml (2 oz) for 10 feeds |
| Normal range per day | varies widely — follow your baby's cues |
| Signs of enough milk | 6+ wet nappies a day after day 5, steady weight gain, content after feeds |
60 ml (2 oz) for 10 feeds.
Try this example →Between 1 and 6 months, about 90–120 ml (3–4 oz) per feed for 8 feeds a day.
Not much: intake is fairly constant from 1 to 6 months, then falls slowly as solids are added.
6 or more wet nappies a day after the first week, yellow stools, steady weight gain and a content baby after feeds.