The amount of liquid a child needs depends on their age, weight, and activity level. For example, infants typically get their hydration from breast milk or formula. Toddlers and older children should drink water regularly throughout the day. The American Academy of Pediatrics recommends:
Infants: Breast milk or formula Toddlers: About 1-4 cups of water per day Older children: 5-8 cups of water per day