Pregnancy Guide ↗
Diaper Size Guide
Find the right diaper size based on your baby's weight. View the complete size chart, monthly cost estimates, signs it is time to size up, and compare disposable vs cloth diapers.
Recommended Size
Per Day
~10
Monthly
~300
Est. Cost
$50/mo
Per Day
~8
Monthly
~240
Est. Cost
$45/mo
Signs It's Time to Size Up
- *Frequent blowouts, especially up the back
- *Red marks on baby's thighs or waist from elastic
- *Diaper is difficult to fasten or the tabs barely meet
- *Baby seems uncomfortable or fussy when freshly changed
- *Diaper looks visibly too small or rides low
Diaper sizes vary slightly by brand. When in doubt, buy a small pack to test before stocking up.
Choosing the right diaper
The right diaper size prevents leaks, blowouts, and discomfort. Diapers that are too small cause blowouts and red marks, while diapers that are too big lead to leaks around the legs.
Most babies go through about 2,500-3,000 diapers in their first year alone. Keeping track of the right size as your baby grows can save money and prevent messes.
Sizes vary slightly by brand. When trying a new brand or size, buy a small pack first to test the fit.