The amount of milk for infants increases gradually with the age of the month. In general, the stomach content of a newborn full-term baby is about 7ml, after 4-5 days it is 25-30ml, and then the amount increases by 30ml every month. Therefore, there is a formula to estimate the amount of milk that a baby will drink each time, the amount of milk = 30 + 30 x the age of the baby, so the amount of milk for a 1-month-old baby is about 60 ml. If it is formula, it is basically fed once in 3-4 hours, if it is breast milk, it may be once in 2-3 hours. This is related to the different emptying time of formula and breast milk. So you can calculate according to this formula. However, babies drink milk on demand, so the amount of milk calculated by this formula can only provide a reference.