: Most major retailers like Target, Walmart, or Costco allow you to exchange unopened boxes for a different size if your baby grows faster than anticipated.

For those considering reusable options, you typically need a total of to allow for laundry rotations every 2 to 3 days. Are you planning to build a baby registry , or how many newborn diapers do I need - Texas Diaper Bank

For a newborn baby, you should typically buy (roughly 140–200 diapers) or 1 to 2 large boxes (around 250–300 diapers) to start. This supply is usually enough for the first 2 to 3 weeks.

: You cannot comfortably fit two fingers under the waistband.