Hi, I wants to give my friend about six months’ worth of diapers for her baby shower, but I’m not sure how many of what size to get. How long will a baby be in newborn, size 1 and size 2 diapers?”
For most diaper brands, Newborn size is for babies up to 10 pounds, Size 1 is for babies 8 to 14 pounds (which will fit larger newborns and infants up to about 3 months old), and Size 2 is for babies weighing 12 to 18 pounds, which is the size of the average infant from about 2 months to 6 months of age. But of course, no one baby is “average”! Gender, genes, prenatal nutrition and a baby’s diet after birth all play a role. The average baby is born weighing 7 ½ pounds, with a healthy range of between 5 ½ to more than 10 pounds. So some perfectly healthy infants will be born already too large for newborn diapers. A baby who’s larger-than-average size could reach 18 pounds and grow out of a size 2 by the age of 3 months, while an infant that was born weighing less than six pounds may not grow out of size 2 diapers until after his first birthday.
So, bottom line (ha!) if you want to stock up in advance on diapers, go for Size 1. Chances are a baby will be in those for a few months, even if she’s in newborn size when she comes home.