How Many Diapers Should I Buy in Each Size?

by Julie Siewert August 06, 2020

How Many Diapers Should I Buy in Each Size?

Babies will go through thousands of diapers during their first year of life.

Many expectant parents want to start getting ready for their new baby by buying diapers early. But how will you know how many diapers to buy for each size?


How many diapers will I need?

Babies can go through 2000-3000 diapers during their first year alone! Some estimate 6000-7000 diapers total until potty training. Yikes! 😱

How many diapers your baby uses depends on how frequently they are changed and how frequently they soil their diapers.


How long will baby be in each size?

This is tough to know. Babies are all different sizes and grow on their own schedule. While some babies are born small and wear newborn diapers for 2 months, other babies are born big and skip newborn diapers altogether!

Fortunately, we can take an average of many babies to find some common numbers. Please note, these are numbers drawn from averages. Your baby might be (probably will be) different than average.


Size  Number of diapers Number of boxes
Newborn 200 2
1 452 2-3
2 792 5
3 1192 7-8
4 863 5-6
5 1738 13


 You might want to PIN THIS for later...

Infographic titled How Many Diapers will I need? Text: Newborn size-2 boxes, size 1 2-3 boxes, size 2 5 boxes, size 3 7-8 boxes, size 4 5-6 boxes, size 5 13 boxes


How will I know what brand of diapers to buy?

Every baby is different, and some babies have more sensitive skin than others. You may need to try a variety of diaper brands to find a diaper that works for your baby’s skin, or you might be lucky that any diaper works.

Many stores have a generous return/exchange policy when it comes to unopened diapers. This may change because of COVID-19. After you figure out what kind of diapers you like, you may be able to exchange the boxes you have for the ones you want. If not, you can sell what you can’t use on Marketplace or a resale website to recoup some of your investment.


Photo of 12 brands of Diaper Samples including Huggies Little Snuggler, Huggies Snug & Dry, Pampers Swaddlers, Pampers Pure Protection, Pampers Baby Dry, Luvs, ABBY&FINN, Bambo Nature, Babyganics, ECO by Naty, Earth's Best and Seventh Generation 

Try a variety of diaper brands with a Diaper Sampler Package! This Mega Mom Diaper Sampler Package includes 12 brands of eco-friendly and name brand diapers.


Is stockpiling diapers a good idea?

There are some things to consider if stockpiling is right for your family.

-Do you have the space to store diapers? Diapers take up room, and if you’re buying in advance, you could need to store them for a year or more! Diapers also need to be stored in a DRY location. Tossing them in a corner of the damp basement might not be the safest choice.

-Can you afford to buy in advance and let that money sit in the corner for a year or more? Knowing the financial and space constraints, is it worth it for you to buy diapers ahead? Also, consider the ramifications if the diaper brand you buy ahead doesn’t work for your baby. You might be able to exchange at the store, but otherwise you might have to sell at a loss.

Read more about stockpiling diapers to save money


Are there other ways to get ready for baby?

If you want to buy something to get ready for baby, you can buy gift cards for Amazon or your local store to save for diapers. Other parents stockpile household goods, like toilet paper, paper towel or toothpaste. Wouldn't it be nice to not have to run to the store for basic household necessities with an infant?


What diapers should you add to your baby registry?

Adding diapers to your baby registry is a great way to tell your friends and family what you want. In addition to boxes of diapers, you can add a Diaper Sampler Package to your registry as well!

Read about how to add a Diaper Sampler Package to 6 different online baby registries (including Babylist and Amazon)


Photo of a stack of diaper boxes and diaper packages with the text How Many Diapers Should I Buy in Each Size? 


Babies go through thousands of diapers, for some families it makes sense to stockpile diapers before baby is born. This is a good guideline for how many diaper boxes you might want to buy.

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