How many ounces of formula should my baby drink?

A common guide for formula-fed babies is about 2.5 ounces per pound of body weight over 24 hours, up to a maximum of about 32 ounces a day. So a 10-pound baby would take roughly 25 ounces a day, split across feedings. This is an estimate; let your baby's hunger and fullness cues lead, and confirm amounts with your pediatrician.

How much should a breastfed baby eat?

Breastfed babies between 1 and 6 months take an average of about 25 ounces a day, roughly 2 to 4 ounces per feeding, nursing 8 to 12 times in 24 hours. Breastfed babies self-regulate, so feed on demand and watch for swallowing and contentment rather than counting ounces.

How do I know my baby is getting enough?

The best signs are steady weight gain and enough wet diapers, about 6 or more a day after the first week. A baby who is feeding regularly, has pale urine, and settles after most feeds is usually getting enough. Fewer than 6 wet diapers a day, dark urine, or poor weight gain means call your pediatrician.

Should I wake my baby to feed?

In the first few weeks, yes, if your newborn sleeps longer than about 3 to 4 hours, wake them to feed until they are back to birth weight and your pediatrician says they are gaining well. After that, most healthy babies can sleep longer stretches and feed on their own schedule.

Baby Feeding Amount Calculator

How many ounces should my baby actually be eating?

Enter your baby's weight to estimate how much formula or breast milk they need each day and per feeding. This is a starting estimate. Babies are not machines, so let hunger and fullness cues lead, and check amounts with your pediatrician.

Free tool Feeding Updated June 2026

Feeding

Weight (lb)

Feeds per day

Typical amounts by age

Age	Per feeding	Feeds / day
Newborn (first days)	0.5–1 oz, then 1–2 oz	8–12
2–4 weeks	2–3 oz	8–10
1–2 months	3–4 oz	7–8
2–4 months	4–6 oz	6–7
4–6 months	6–8 oz	5–6
6–12 months	7–8 oz (plus solids)	4–5

How this estimate works

For formula, a common guide is about 2.5 oz per pound of body weight over 24 hours, up to a max of about 32 oz a day.
Breastfed babies 1–6 months average about 25 oz a day and self-regulate, so ounces matter less than cues.
Once solids start around 6 months, milk gradually decreases as food increases.
Growth spurts temporarily raise appetite. Follow the baby, not the chart.

Call your pediatrician if

Fewer than about 6 wet diapers a day after the first week, or dark, strong-smelling urine
Your baby is not gaining weight, or is losing weight after the first 2 weeks
Your baby seems hungry after most feeds, or refuses to feed repeatedly
Forceful (projectile) vomiting, or far less interest in eating than usual

Never force a baby to finish a bottle, and never prop a bottle. A baby who turns away, slows down, or seals their lips is telling you they are full, and that is the cue to trust.

Quick answers

How many ounces of formula should my baby drink?: A common guide for formula-fed babies is about 2.5 ounces per pound of body weight over 24 hours, up to a maximum of about 32 ounces a day. So a 10-pound baby would take roughly 25 ounces a day, split across feedings. This is an estimate; let your baby's hunger and fullness cues lead, and confirm amounts with your pediatrician.
How much should a breastfed baby eat?: Breastfed babies between 1 and 6 months take an average of about 25 ounces a day, roughly 2 to 4 ounces per feeding, nursing 8 to 12 times in 24 hours. Breastfed babies self-regulate, so feed on demand and watch for swallowing and contentment rather than counting ounces.
How do I know my baby is getting enough?: The best signs are steady weight gain and enough wet diapers, about 6 or more a day after the first week. A baby who is feeding regularly, has pale urine, and settles after most feeds is usually getting enough. Fewer than 6 wet diapers a day, dark urine, or poor weight gain means call your pediatrician.
Should I wake my baby to feed?: In the first few weeks, yes, if your newborn sleeps longer than about 3 to 4 hours, wake them to feed until they are back to birth weight and your pediatrician says they are gaining well. After that, most healthy babies can sleep longer stretches and feed on their own schedule.

Sources & further reading

Log every feed and see the real pattern.

ParentFlow tracks amounts, timing, and diapers, so you can tell at a glance whether your baby is getting enough.

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This tool gives general estimates from AAP guidance and is for educational purposes only. It does not constitute medical advice. Every baby is different. ParentFlow is a wellness companion — not a substitute for your pediatrician. For any feeding or growth concern, contact your healthcare provider.