Most babies are satisfied with 3 to 4 ounces (90–120 mL) per feeding during the first month and increase that amount by 1 ounce (30 mL) per month until they reach a maximum of about 7 to 8 ounces (210–240 mL). If your baby consistently seems to want more or less than this, discuss it with your pediatrician.

How do I know if my baby needs more ounces?

Track your newborn's wet diapers. Look for at least five or six wet diapers each day to indicate that she is getting enough to eat. Fewer wet diapers may mean she needs more to eat. Increase feedings if your baby finishes a bottle faster than normal and still acts hungry when the formula or breast milk is gone.

How do you know if baby is getting enough formula?

The best way to know if your baby's getting enough formula is to let her set the pace. If your baby's hungry, feed her for as long as she is eager to drink. If she starts losing interest, you can burp her and then try again. Let your baby be the guide.