Question: how long does a baby stay in size 1 diapers?
Answer: 4 boxes of Size 1 (based on a 164 pack size; babies will typically be in this size for 3 months, with 6-9 diaper changes per day) 5 boxes of Size 2 (based on a 142 pack size; babies will typically be in this size for 3 months, with with 6-9 diaper changes per day)