How Many Size 1 Diaper Do I Need (Daily, Monthly, Yearly Plan)


Depending on the brand and size of the diaper, you may need between 8 to 10 size 1 diaper per day. A size 1 diaper is typically equivalent to a US infant’s 8-14 pound weight. So if your baby weighs 8 pounds, then you will need at least 50 diapers per week to cover their needs. This may result in 12 to 13 packs per month. Remember, each pack will contain 40 pieces. So it’s best to divide your packs accordingly.

I think things are a bit confusing yet, right? Then don’t worry. In this ultimate guide on how many size 1 diaper do I need, I will tell you what the size of the diaper is.

And how to measure your needs to determine which size they should wear. We’ll also go over how long they can be used and their approximate cost. You will have to make sure you read all the way to the end.

Read Also: How Often Should I Change the Baby’s Diaper at Night?

How many size 1 diapers do I need?

To measure how many size 1 diaper your baby will need, you will need to weigh them and measure them first. Now that you have this information consider your baby’s age. Age plays an important role in determining how many diapers will be needed.

If your child weighs 8 pounds, they will wear 7 to 9 size 1 diapers per day on average. Some babies may need more or fewer diapers per day. You will just have to observe your child and see what works best for them.

As long as they are wearing enough diapers, you should be good to go. Keep in mind that babies will wet and soils their diapers more often on days when they are sick. So it is always best to err on the side of caution and increase the number of diapers worn.

How long does the Size 1 diaper last?

Here comes an important question. How long will size 1 diaper last? The answer to this question is different for each baby. It all depends on how often the diapers are changed and if the child goes through a fast diaper stage where they soil more often than usual.

This means that some babies may need to be changed every 2 hours, while others may only need to be changed every 4 hours. This also varies depending on how much urine and feces are present in the diaper at any given time. Newborns and small babies will likely need to be changed more often than bigger kids.

Approximate cost for size 1 diaper per year

If you are a mom, then you might know the average cost of a diaper is around 0.20$ to 0.30$. And as I said above that, a baby may need 8-10 diapers per day on average. This means that you will need 240 to 300 diapers per month. This indicates in a year, you will have to buy approximately 3600 size 1 diaper. So after calculating, the total cost for a year is around $720 to $1080.

Some people might rather buy diapers in bulk and save money. Buying 3600 size 1 diapers will cost you less than $1080 if you purchase them retail. Just keep in mind that size 1 diapers will last around 3-4 days, so it is also important to rotate the diapers.


Now that you have read the article, do you know how many size 1 diaper do I need? I hope you know. Always follow your baby’s weight to decide when to switch to a new size and when to buy a new pack of diapers.

However, the great thing is that diapers nowadays come in different styles and designs that cater to all babies. As always, if there is anything else we can answer for, don’t hesitate to drop us a message in the comments section below.

About Sujana Vij

Hi, this is Sujana. I am an independent strong woman. My noteworthy identity is I am a mother of two children and also a baby site blogger. Besides, the part of my job I love to help parents by giving them useful and practical suggestions that I gained through many difficulties. Normally, we use many products or items for our baby. As a mother, I know how difficult to choose the best product for your baby. In addition, if you are a rookie parent then it's much more difficult. You might need to talk to real parents. That's why I share my experience and feelings upon the best baby products and parenting tips