First off, you can never have too many diapers! With all the options of cute prints and colors out there today, you'll want to buy them all but if you are truly wanting to save money, the general rule is 2.5 time the number of changes per day. This assumes you'll be washing every other day.

Newborns: 24 to 36 diapers (consider our newborn cloth diaper rental program)

Infants: 18-24 diapers

Toddlers: 12 -18 diapers