# How Big Is a 40 Liter Backpack?

How Big Is a 40 Liter Backpack: Choosing the perfect size hiking backpack can be frustrating. You have to figure out which brand is best, the appropriate size that can fit all your essentials, and important it’s not big for you. Most people who buy a hiking backpack for the first time make the mistake of either choosing a small size backpack or a big and heavy backpack.

We are here to ensure that you don’t make this mistake. At the end of the article, you can easily figure out how to measure your hiking backpack, which size is the best, and most importantly how big is a 40-liter hiking backpack?

## How to measure general backpack

Generally, there are two easy ways to measure the size of a hiking backpack. The first method you must be already familiar with is

Measuring the dimensions of a backpack.

• Height
• Length
• Width
• Volume capacity ( carrying capacity).

Although, these the primary ways to determine whether a backpack is big or small for you, it is not the perfect method.

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If you choose this method, you might end up getting a big or small backpack. Also, it is difficult to figure out the volume capacity of a hiking backpack. So, this method is not 100% accurate.

Instead, to figure out whether a 40-liter backpack is big for you or not, you have to choose a different method.

As weâ€™ve mentioned before, there are three main things to focus on when measuring the size of a hiking backpack:

• Total numbers of items you are planning on packing.
• The torso measurementâ€”the backpack should be equal or less than the torso
• Length of your hiking excursion

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## How Big Is a 40 Liter Hiking Backpack?

For a simple answer, 40 literÂ is equal to 2,440.95 cubic inches. The volume of a backpack is measured, by calculating the volume of every compartment in the backpack and then combine all the volume to get an accurate result.

While measuring the volume of the compartment, the manufacturer measures the capacity with both pockets close and open.

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The total volume is taken in cubic inches, but for users, it’s quite difficult to get an exact idea of the bag with cubic inches. So, the measurements of the bag are converted into liters. Although, these results are not 100% accurate, but it is the most conventional way to measure the size and volume capacity of a bag.

So, now you know that 40 liter back is approximately 2,440.95 cubic inches, but is it the ideal size of a backpack?

## Is 40 Liter Backpack good for multi-day hiking?

If you are on your way to a multi-day hike, you probably want to carry an adequate amount of clothing, gear, food, and few other amenities. Yes, a 40-liter Backpack good for multi-day hiking as you can easily pack all the essential items in your backpack. A 40-liter backpack is enough to put few summer clothes, your personal documents, hiking boots etc.

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But if your hiking trip includes additional gear, you might want to choose another backpack with a large carrying capacity. You can easily put it inside a laptop with all our summer clothing and still few spaces left in our backpack.

## Ideal size of a hiking backpack

There is a large variety of hiking backpacks, you can choose from different sizes to different materials and different brands. Generally, hiking backpacks can be easily found between 30L and 55L. But have you ever consider which backpack will suit your every need.

If you buy a 30L hiking backpack, it can be small to cover all your items. But most people who buy, 30L backpack use them when they go to high altitudes. You might think that packing light is the best idea when hiking through high altitudes.

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Although, you should prefer these steps 30L is a small backpack and hikers have difficulty packing all their essential items in the backpack.

On the other hand, if you choose a 55L backpack, you’ll have enough space to pack all your essential items. But, 55L backpack is heavy and also you’ll have a ton of space left in your backpack. The biggest disadvantage of a 55L hiking backpack is its torso measurement. Some 55L backpacks have a higher torso measurement. The torso measurement- the backpack should be equal or lower than the torso. The higher torso measurement creates difficulty for the hikers to walk properly as they usually feel bulky.

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Also, if your trip includes an airline journey, the range of the backpack should not over exceed 45L. This is not for all the airlines, but 50% have these rules.

So, now we can easily say that we can consider 40 liter as the ideal backpack. It is not small neither too big and manages to maintain a perfect balance. When you go for a 40-liter hiking backpack, you don’t have to worry about leaving any essential items aside and after packing the bad it will be not bulky to carry. Also, there will be no luggage issue as 40L backpack is under the weight limit of the airlines.

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A 40-liter hiking backpack wins the heart of every hiker around the world as it comes with a perfect carrying capacity and also lightweight. Also, the 40-liter backpack has the perfect length of the torso( it is not bigger than your torso). If that happens, it is difficult to carry the bag and hike for a long time. You can also opt for other variations of backpacks according to your packing item and your journey.

In my hiking trips, I usually find hikers with mostly 40-liter backpacks but some are long-distance travelers so they have a ton of hiking backpacks including 55L, 45 L, and 30L backpacks too.

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## Conclusion

A 40-liter hiking backpack is one of the best options to choose from in a wide variety of backpack sizes. Beginners should prefer buying a 40-liter backpack as they can easily pack all their essential items without losing any comfort while traveling with it.

Also, the 40-liter hiking backpack has the perfect torso measurement. The backpack is either equal to the torso or lower. The lower torso length will let the user a better walking experience. It doesn’t get bulky as the eight is divided appropriately around your back. If the bag has a bigger torso measurement, you should avoid it as you’ll have difficulty carrying it.

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When you buy a backpack of any size always remember these important things:

• size you’ll be comfortable carrying
• excursion plans ( travel period)
• Number of items you plan on packing.

By keeping all of these factors in mind, you will have the best hiking backpack at your grasp and you ride your way to make your travel memories.