How to Measure Backpack Dimensions

How to Measure Backpack Dimensions
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When travelling around the world with our backpacks, most of us will decide to take our backpacks onto planes as a carry-on item.

This can enable us to avoid checked baggage fees, to avoid waiting for our luggage at our destination, and to make sure that no one mishandles our luggage while we are not present to stop them.

Unfortunately, different airlines have different size requirements and measuring your backpack for them can be an absolute nightmare. This is because backpacks are usually sized based on their capacity in liters, not based on their overall dimensions.

Volume vs. Dimensions

Most of the backpacks that can be found readily available on the market are sized based on their volume, or the number of liters that they can carry at once. But, there are some that have been designed and manufactured specifically with carry-on luggage size restrictions in mind.

The volume of all backpacks is determined by adding up the space that is present inside of all of the compartments, not just the main one.

If you are planning on travelling with a backpack, then you are probably going to have to look for something that can be found between the 30 – 40 liters range.

Carry-on Backpacks

Anything smaller than that would be too small (unless you plan on separating your day to day items into a different bag) and anything larger than that would be too heavy to travel with.

You want to try to make sure that you can fit all of your essential items inside of your backpack and that it is quite full when you do so. Any empty space will make your backpack feel quite uncomfortable to carry because it will enable your belongings to move around as you walk.

Carry-on Backpacks

If you are shopping for a travel backpack, then you need to try to look for the words “carry-on backpack”. These are backpacks that have been specially designed and manufactured as carry-on luggage. This means that they already have all of the dimensions that you are looking for and that your job has already been done for you.

Before you purchase a carry-on backpack, you should always check the guidelines that have been set out by your chosen airline(s). Some companies let you have slightly larger dimensions than others and a lot of budget airlines will make sure that they weigh and measure your bag before you step foot onto the airplane.

There are a lot of companies who will not check the dimensions of your baggage, but it isn’t worth the risk of being told that you may have to pay to check it in.

Remember that a lot of different carry-on backpacks will probably be smaller than the travel backpack that you were imagining. In some ways, this is a good thing, but it can also be a bad thing if you have a certain mindset. Carry-on backpacks are beneficial because they can speed up your check-in and departure process, but they are also problematic because of their size.

Travel backpacks are small. This means that you will be restricted when it comes to the number of items that you can pack. This is a bad thing for people who enjoy being specific with the exact items that they take with them on holiday, but it can also be a good thing because it forces you to bring only your essential items with you.

Measuring the exact dimensions of your backpack


Measuring the exact dimensions of your backpack is a relatively easy task. You simply have to take a tape measure and measure the length, width and depth of the pack that you have chosen.

It can be a little bit difficult to get accurate measurements when you are doing this, but luckily you don’t need to be 100% accurate. You just need to make sure that your backpack is small enough to go onto the plane as carry-on.

It is also important to determine the size of the backpack because that will determine whether or not the backpack is going to be comfortable for you to wear for prolonged periods of time. By knowing the length of the backpack, you will know how high up and how low down your back the backpack will sit.

Your Chosen Features

The most important thing about any backpack that you choose to go travelling with is that it has the ability to offer you the features that you need. As you have already read, it is important for your backpack to be a certain size, but it is also important for your backpack to offer you other features.

These could include safety features, durability and comfort. Because of these features, you should give yourself a lot of time while choosing a backpack to travel with.

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