Amount and Schedule of Formula Feedings
After the first few days, your formula
-fed newborn will take from 2 to 3 ounces (60–90 ml) of formula
per feeding and will eat every three to four hours on average during her first few weeks. (Breastfed infants usually take smaller, more frequent feedings than formula-fed infants.)
During the first month, if your baby sleeps longer than four to five hours and starts missing feedings, wake her up and offer a bottle.