The amount of formula an infant needs can vary based on age, weight, and growth patterns. On average:
Newborns may consume about 2-3 ounces per feeding every 3-4 hours. By 2 months, babies may consume 4-5 ounces per feeding. By 4 months, 5-6 ounces per feeding. By 6 months, 6-8 ounces per feeding.
It is important to follow the baby's hunger cues and consult with a pediatrician to ensure the baby is receiving adequate nutrition.