Diaper Size Chart

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When you first have a baby, it is easy to figure out what size diaper they should wear. Newborns get newborn diapers. But when do you move up to size 1? How about size two? To answer these questions there is an obvious and not so obvious answer.

I have compiled a diaper size chart that displays 5 of the most common diaper brands, their sizes, and the guidelines for when to use those sizes.


Diaper Size Chart - Baby Designs
This was fairly simple to look up. I just googled ‘most popular diaper brands’ and got these five. There are many other brands out there that may offer more, or less. Their sizes might also vary in what they can accommodate.


  • Huggies
  • Pampers
  • Luvs
  • Seventh Generation
  • Parent’s Choice

Each brand offers multiple styles and fits. Not all styles and fits have all sizes that are displayed. Please read packaging details and websites carefully before purchasing to make sure you are getting diapers that fit your needs.


Overall, the spectrum of diaper sizes is pretty universal. Some brands offer sizes that go a little outside of what most offer.

The Sizes that I saw offered are:

  • Premature (P)
  • Newborn (N)
  • Size 1 (1)
  • Size 2 (2)
  • Size 3 (3)
  • Size 4 (4)
  • Size 5 (5)
  • Size 6 (6)
  • Size 7 (7)

After size 7, you start to get into training pants to help your little one in their potty training. I decided not to include those in this post as I do not consider them diapers, but more of an aid in learning to use the potty.


Huggies Pampers Luvs





Diaper Sizes
P Up to 6lbs. Up to 6lbs. ———— ———————- —————–
N Up to 10 lbs. Up to 10 lbs. Up to 10 lbs. Up to 10 lbs. Up to 10 lbs.
1 Less than 14 lbs. 8-14 lbs. 8-14 lbs. 8-14 lbs. 8-14 lbs.
2 12-18 lbs. 12-18 lbs. 12-18 lbs. 12-18 lbs. 12-18 lbs.
3 16-28 lbs. 16-28 lbs. 16-28 lbs. 16-28 lbs. 16-28 lbs.
4 22-37 lbs. 22-37 lbs. 22-37 lbs. 22-37 lbs. 22-37 lbs.
5 27+ lbs. 27+ lbs. 27+ lbs. 27 + lbs. 27+ lbs.
6 35+ lbs. 35+ lbs. 35+ lbs. 35+ lbs. 35+ lbs.
7 ————– 41+ lbs. ————- ——————— 41+ lbs.

Where to Get

There are many outlets to get diapers these days. You can go to the traditional brick and mortar store, go to a traditional store’s website, or you can go to web pages such as Amazon to purchase your diapers.

Some more popular store’s that carry at least one of these diaper brands are:

  • Walmart
  • Target
  • CVS
  • Walgreens
  • Costco
  • Amazon

One of the options that I have recently discovered is a feature on Amazon that is a subscription service where you can pick how often they send your choice of diapers to you. You can pick between every 2 weeks to every 6 months.

The best part about this service, besides it being automatic, is that it instantly saves you 5%(non-Prime members) to 15%(Prime members) off the cost of the diapers. If you happen to have a Prime Membership then you already get free shipping, which is in my opinion, a paid for service that more than pays for itself over the course of a year.

You can check out what Amazon has to offer HERE for their diaper subscription service.

Final Thoughts

Making sure that you get the proper size diaper for your little one is so important. You want to make sure that their bottoms have enough room to breathe and for them to move about, while still keeping all the poop and pee inside.

Each brand offers many styles and shapes of diapers that claim to do many things, from keeping your little one dry longer to being a superior fit. You will have to experiment to find what works best for you and your little one. As you little one get older, they might need a different style.

One thing that surprised me about the diaper sizes and the weights they say they accommodate is that the weights overlap. This means that you have some wiggle room before you need to change diaper sizes, possibly to finish off the diapers in that size before moving on to the next size.

This is important to keep in mind so you don’t amass a pile of diapers that are now too small for your little one to use.

Comments, questions or thoughts? Leave them below 🙂

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