The amount of formula a baby should drink depends primarily on their age and weight, with common guidelines as follows:

• Newborns in the first days typically take 1 to 2 ounces per feeding, about 8 times a day. By 1 month, this increases to about 2 to 4 ounces per feeding, 6 to 8 times daily

• A general rule is that babies need about 2.5 ounces of formula per pound of body weight per day. For example, a 8-pound baby would need about 20 ounces daily

• By 2 months, babies usually consume 4 to 5 ounces per feeding every 3 to 4 hours, totaling around 24 to 32 ounces per day

• Between 3 to 6 months, feedings typically range from 4 to 8 ounces every 4 to 6 hours

• The maximum daily intake is generally around 32 ounces, as recommended by the American Academy of Pediatrics

Feeding frequency and amounts will vary by baby, and it is important to watch for hunger cues and consult a pediatrician if unsure. Overfeeding is rare if paced feeding is practiced

. In summary, you can estimate daily formula needs by multiplying the baby's weight in pounds by 2.5 ounces, and divide that into feedings spaced every 3 to 4 hours for young infants, increasing the ounces per feeding as the baby grows.