Every day, a baby uses an average of 10 to 12 diapers in the first month. That means your baby will use about 300 diapers in their first month! A 2–3-day supply of diapers is a good starting point. This amount will depend on your baby's age, your washing habits, and the type of cloth diapers you use.However, we recommend at least 36 diapers for newborns, 24 for infants, and 20 for toddlers for one month.