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How Much Should Newborns Eat In A Day? | Ounces & Cues

Newborn intake builds fast: expect 16–24 oz per day in week one, then ~20–30 oz by 2–4 weeks, paced by hunger cues and diaper output.

In the first weeks, newborn feeding looks like 8–12 feeds a day, roughly 1–3 oz per feed at first, rising toward about 24–32 oz per day by one month.

For pumping at 9 months postpartum, plan 19–30 oz in 24 hours and aim to pump 1–1.5 oz per hour you’re away, then adjust to your baby.

On day 1, a newborn usually takes 5–7 mL (about 1 tsp) of colostrum per feed and nurses 8–12 times in 24 hours.

Most parents express 2–4 ounces (60–120 mL) per pumping session once supply is established, with smaller amounts in the early days.

At three weeks postpartum, aim for 8–10 sessions a day, with about 19–30 oz (570–900 mL) total in 24 hours if you’re exclusively pumping.

On day 5 postpartum, most parents pump about 60–90 mL (2–3 oz) per session and roughly 360–600 mL (12–20 oz) in 24 hours with 8–12 sessions.

Most parents express 2–4 oz (60–120 ml) per session after supply settles; early days are lower and output varies with age and spacing.

At 6 weeks postpartum, pumping targets usually land around 24–30 ounces (710–900 mL) per day to match typical infant intake.

For expressed breast milk, most babies take smaller, frequent feeds; match bottle size to age, hunger cues, and time away from the breast.