Whether you’re looking for a backpack for school, work, travel, hiking, or any other activity, determining the appropriate capacity of the bag is critical when purchasing the best bag for your needs. Because backpack capacity is measured in liters, it may be impossible to determine the capacity of your bag by filling it with water or other liquid. So, if you’re wondering how big is a 30 liter backpack, you’ve come to the perfect place.  Best Bags Guru has provided you the detail and informative answer of your question.

How Big Is a 30L Backpack? A Complete Guide

In this article we’ll take a deep look into how big is a 30 liter backpack and what fits inside it. We will take you through the step by step process of How Big Is A 30 Liter Backpack and provide you with some helpful hints.

How to Measure Backpack Dimensions?

When we think about dimension and measurement, the first thing that comes to mind is mathematics. It is critical to consider the storage capacity of a backpack before making a purchase.  There are two methods for measuring a backpack: measuring the volume or estimating the backpack’s actual dimensions.

Volume is measured in liters and it refers to how much can fit into a bag.   The volume refers to the whole three-dimensional space that can be filled in a bag. The size of the backpack’s main compartment or the combination of many internal compartments usually determines the volume of a backpack. The main compartment is the bag’s largest and will house the most of your belongings.

The size of a 30 liter backpack is determined by a variety of elements, including internal and external dimensions, materials, and the overall shape and design of the backpack. To determine the capacity of your bag, you must first measure the length, width, and height of the bag and then multiply these three dimensions to get the volume cubic meters.  

 The 30 liter backpack is available in varying dimensions. Generally, a 30-litre backpack’s length or height can be between 18.5 and 21 inches, its breadth can be between 8 and 12 inches and its depth which is the length of the bag from back to front can be between from 4 to 9 inches.         

As a result, 30 litre backpack dimensions are 18 x 12 x 8 inches (L x W x H) (at an average). I’d like to add that this is only a rough estimate of the size of a 30 liter backpack; the size may vary depending on the design and manufacture. It is not necessary that a backpack with the same measurement (stated above) has a capacity of 30 liters.

What Can You Pack Into a 30-Liter Backpack?

Now that we have known how big is a 30 liter backpack, let’s see what we can stuff into a 30 liter bag for the most common situations like school, work, travel, and the gym. An ideal 30L backpack has a volume of up to 1800 cubic inches so it is neither too big nor too small.

The amount of items you can fit in your 30-litre backpack is dependent on how you intend to use it. When compared to packing for a week’s excursion, a day vacation to the beach requires less packing. The following list would give you an idea of what you can fit in a 30 liter backpack.

  • Three pairs of jeans
  • 6 T-shirts
  • 3 to 4 shirts
  • Jacket  
  • Two pairs of footwear
  • At least one pair of flip-flops
  • A couple of pairs of socks
  • A week’s worth of underwear changes
  • A laptop and a charger
  • A hand towel
  • A pen and a tiny notebook
  • A little bag for toiletries
  • A digital camera
  • Two water bottles
  • Moisturizers, razors, and mosquito repellent, among other things

To fit your needs, you can add or remove items from the list. It’s entirely up to you.

How Much Should a Backpack Weigh?

Any backpack, including 30-litre backpacks, has no fixed weight. The weight of a backpack is entirely determined by the materials chosen, the padding on the back panel and shoulder straps, and any additional pockets. As a result, no two 30 liter backpacks are identical in weight.

 A 30-liter backpack can weigh from one to six pounds. Some backpacks, which do not have any padding and are made of relatively light polyester or nylon fabric, can weigh as little as one to three pounds, yet a heavy-duty tactical backpack can weigh up to six pounds.

What is a 30 liter Backpack For?

The 30L backpack is for you if you need a bit more space for your belongings but don’t want to carry an unnecessarily large backpack. With a 30L backpack, you can travel light, go hiking or gym and commute to work. The 30L backpacks are ideal for day trips or short hikes.

Can You Use a 30-Liter Backpack as a Regular Backpack?

Even though it isn’t the ideal bag for everyday use, it does have a few features that could be useful. You can possibly lessen the size and capacity if it has compression or cinching straps on the sides. That way, you may keep your basics, such as a laptop and books, in the backpack and use it as a regular bag.

What to Look for in a 30-Liter Backpack?

 If you’re sure that you need a 30-liter backpack. So always opt for the best and make sure your bag has all of the necessary characteristics. Some important features to look for in a 30-liter backpack are listed below.


Different materials are used to make the 30L backpacks. However, for durability and protection, you should constantly consider the type of material your bag is made of. Most lightweight backpacks are made of Cuban fiber and ripstop nylon. Cuban fiber is lighter but more expensive, and ripstop nylon is heavier but less expensive. For your 30l backpack, one of these options would suffice. You can also choose backpacks made of other materials, but make sure that whatever you choose is durable and dependable.

Waterproof or Water-resistant

If you’re going to use your 30-liter backpack for outdoor activities like hiking and travelling, it should be water-resistant, if not waterproof. Water-resistant or waterproof backpack makes sure your belongings and your backpack, in general, are safe from rain.  Many backpacks that are not highly water-resistant come with a cover. Make sure such a cover comes with your backpack and fit it snugly.


No one wants to carry a backpack that doesn’t offer comfort. Straps are one of the most significant features of any backpack. As a result, it’s important to choose a backpack with both durable and comfortable straps. When it comes to comfort, padded shoulder straps are a must. Comfortable and padded shoulder straps are a must-have feature of a 30 liter backpack. If you want maximum back support and comfort from your backpack, then choose one with a sternum strap and a waist or hip belt. These straps help in weight distribution and offer maximum back support and comfort.

Padded Back Panel

Padding in the straps isn’t enough; you also need padding in the back. A padding-less or minimal padding back may not be the most comfortable or safe option. Padding supports your back while also protecting the contents. It also ensures that the bag is well ventilated.


Whatever the situation may be, make sure that the design of the backpack you want is appropriate for your needs. If you want to keep your goods organized, extra pockets and compartments will be helpful. A front-load backpack would make it simple to reach your belongings.


You don’t have to break a bank to get a good backpack. An expensive backpack does not always imply a long-lasting bag. Excessively inexpensive bags, on the other hand, are almost certainly made of inferior materials so avoid them.   So always check out the features and reviews before purchasing a 30 liter backpack.

Where Should a Backpack Sit on Your Back?

Wear your backpack after adjusting the shoulder straps. It’s the right size for you if it sits two inches below your shoulders and ends at your waist, not two inches above your hips.

Another way to check the snugly and perfect fit of your 30 liter backpack that has a hip belt is to attach the hip belt and observe how the shoulder fit. The pack is too long if there is a space at the shoulders; on the other hand, it is too short if the straps extend more than a few inches down your back when you’re wearing the hip belt.

What Color Backpack Should I Get?

 Backpacks occupy a considerable visual space of your body. So when choosing the right color, do yourself a favor by focusing on how it matches the way you dress rather than whether or not it looks good alone.

Usually, we purchase backpacks for different purposes such as hiking, school, work, etc. So if you are choosing it for the workplace then you should select a decent color and if it’s for school, choose bright colors and if it’s for hiking trips, choose a dark color pack since dirt will attract you when hiking.

 You carry your backpack to many places or use it regularly for work or school. So we recommend picking a color that goes well with most of the clothes you own.  If you love white, gray, black and blue wardrobe, then black and navy blue backpacks are safe choices. For those with a more adventurous palette, maroon, red, or teal colors backpacks are perfect.


Undoubtedly, there are a variety of 30L backpacks available in various dimensions. So, what size backpack should you get? Well, that depends totally on your age, gender, and chest and torso size.

 A 30-liter backpack is excellent for short travels of no more than two weeks. However, if you pack light and have other compact bags with you, you could use it for long-term travel as well. This size is ideal because it is neither too large nor too small.  As a result, instead of buying a new backpack, you can use it as a standard backpack. You now have a better understanding of how big is a 30-liter backpack.

Now, before you buy a backpack with a capacity of 30 liters or more, think about the length of your torso. Always choose a backpack that is the same size as or smaller than your torso. Avoid purchasing a backpack that is too large for your torso; it will be quite uncomfortable.

We did our best to provide as much information as possible in response to your query about “how big is a 30 liter backpack.” So, in the comments box below, tell us about your experiences and how this post helped you in finding the perfect backpack.