What Size Backpack for Kindergarten: Tips and Advice

The question of what size backpack for kindergarten is one that many parents are faced with when their child starts school. Every year, schools come out with new requirements and it can be hard to keep up with all the changes. Backpacks come in a variety of sizes and styles so finding the perfect fit for your kindergartener may not always be easy! With this blog post, we hope to give you some tips on how to find the best backpack for your little one’s needs.

What Size Backpack for Kindergarten

What Size Backpack Does a Kindergartner Need

Everyone knows that a backpack is an essential part of kindergarten. They are used to carry lunch boxes, water bottles, show-and-tell items, and more! It’s important for parents to invest in quality backpacks at this time so they can be ready when their kids start school. Rolling backpacks may not fit well with the things required during kindergartens like homework notebooks or activity books because they don’t sit comfortably on your shoulders for long periods of travel. 

The perfect-sized backpack size should have both straps adjustable enough where you don’t need help from adults just as much but also hold all necessary materials without being too heavy or bulky. 

What Size Backpack Should I Buy for Kindergarten?

Determining the kid’s backpack size is not as easy as it may sound. There are two things that you need to pay attention to while trying on backpacks: the height of your kids’ backs and the width of their kindergarten. After measuring these, find a bag with an appropriately sized shoulder strap so they can comfortably carry for extended periods without putting too much weight in one spot or having straps fall off their shoulders if they grow before you buy!

Average Child Back Sizes for Backpacks

Finding the perfect backpack for your child can be a daunting task. If you’ve ever wondered what back size is best for an average child, take a look at our table below.

Age (Year)Height (Inches)Width (Inches)

Choosing the Right Backpack Size for Kindergarten

The Right size backpack is essential for your child’s back, shoulders, and neck. They come in different sizes to fit the requirements of children with varying needs.

Small Backpacks

The small backpacks are a great choice for your kindergarten child with 15-20 liters of space. School backpacks with a capacity of 15-20 liters are a standard size, whereas larger bags may be too cumbersome. Although these backpacks are compact, they often come with additional compartments for storing calculators, pens, and keys, toys, etc.

Medium Backpacks

With a capacity of 21 to 30 liters, these backpacks are perfect for strong students who need more space or have the strength to carry heavier items. Alternatively, they can also be used by smaller children if needed.

Large Backpacks

It’s hard to find the right backpack for kindergarten. The school doesn’t allow backpacks that are larger than 31 liters, so it is important not to buy a large one unless your child needs an oversized bag with enough space for their folders and laptops. For most kids, this size will be too small because they need room in order to carry lunch boxes, books, water bottles, etc

How You Can Calculate Backpack Weight?

Here is the simplest formula to calculate the maximum kid’s backpack size and weight.

Max backpack weight= Child weight*0.5

For example, a 50-pound child should carry up to 7.5 pounds while a 100-pound child should carry up to 15 pounds of gear in their backpacks!

How Do You Pack Your Child’s Back With Supplies for School?

Do you have a child headed back to school soon? Whether they are in elementary, middle, or high school it can be a daunting task preparing them for their first day. You want to make sure they have everything and that it is easily accessible. One of the best ways to do this is by packing their backpack with supplies for the new school year. Here are some helpful tips on how you can pack your child’s back with supplies for school?

The most important thing when packing your child’s backpacks is making sure that all of the necessities are there: pens, pencils, a folder, paper, and an extra set of clothes. This is particularly important for young children who may not be able to carry their backpacks themselves.

If you are packing books, you should make sure that they are the right size so that there is enough room for other supplies as well.  

What Size Backpack for Kindergarten-Buyer’s Guide


Padded Back and Shoulder Straps

As your children’s backpacks get heavier with crayons,  Make sure to choose a backpack with padded straps as this will prevent unnecessary pressure or abrasion on your little one’s body!


Kids should have two or more compartments in their backpacks to give them a place for books, toys, and lunchboxes. If kids only had one compartment they would feel pain on the shoulder and neck because of all the weight being pushed onto that spot.


In addition to storage for folders and notebooks, your child’s backpack should also have space for a water bottle. Some backpacks even come with clips that allow kids to attach their lunch boxes! This means they can keep it by the side of them at all times, making sure no one steals or drops anything on top of it.

Water Resistance

You should always buy a waterproof backpack for your kids that are made from synthetic material such as nylon and polyester. This will protect the materials in their backpacks when it rains or snows outside.

Design and color

Kids love bright, fancy-colored backpacks with cartoons and comic characters. But if you want to make your child happy when buying their new backpack, the best thing is to bring them along! They’ll get a say in what color they like best and also give some input on size which can be helpful for parents.


Choosing the best size backpack for kindergarten can be a tough task, but it doesn’t have to be. In this post, we’ve identified some of the most important features that you should consider when deciding on what size backpack for kindergarten is right. We hope that our tips will help make choosing a backpack as easy as possible.

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Hey, I'm Liv Minka. Currently, I am a student and a part-time blogger who loves to write about backpacking experiences and reviews.

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