How much milk does your baby need?
A rough guide to daily and per-feed amounts for a bottle-fed baby, based on weight. For formula-fed babies under 6 months.
Enter a weight to see an estimate.
We’ve capped this at about 1 litre (32 oz) a day — most babies don’t need more from formula.
These are rough estimates for bottle-fed babies, not medical advice. Follow your baby’s hunger cues and your pediatrician’s guidance, and always prepare formula exactly as the tin directs.
About baby feeding amounts
How much milk should a formula-fed baby drink?
A common guide is about 150 ml of formula per kilo of body weight each day (roughly 2.5 oz per pound), for babies under 6 months who aren’t yet on solids. So a 5 kg baby needs around 750 ml a day. Every baby is different — some want a little more, some less.
Is there an upper limit?
Most babies settle around 150–200 ml/kg and rarely need more than about 1 litre (32 oz) a day from formula. If your baby seems hungry beyond that, talk to your pediatrician rather than pushing more bottles.
What about breastfed babies?
Breastfed babies feed on demand, and you can’t easily measure ounces at the breast — so this calculator isn’t meant for them. Watch your baby’s cues and wet diapers instead of a target number.
How do I know my baby is getting enough?
The best signs are steady weight gain, plenty of wet and dirty diapers, and a baby who’s content between feeds. Numbers are a starting point; your baby and your pediatrician are the real guide.
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