A two-month-old baby can usually drink 120 to 150 ml of milk at a time, and is fed once every four hours or so. The amount of milk an infant receives is also affected by their growth rate, activity level, metabolic rate and other factors. Therefore, the amount of milk offered also needs to be adjusted accordingly to the infant’s needs. It is also most important to observe the infant’s physical response and satisfaction. For example, if the infant appears to be quiet and contented after feeding, the amount of milk is appropriate. If the infant still appears to be hungry and irritable after feeding, the amount of milk may need to be increased. How many milliliters of milk a two-month-old baby can drink is based on the specific situation of each baby. Regular medical check-ups at the Child Health Service and developmental conditions such as height and weight within the normal range indicate that feeding is appropriate.