How Big is a Quart-Sized Bag? Everything You Need to Know

If you’re someone who frequently travels by plane, you’ve probably heard of the TSA’s (Transportation Security Administration) 3-1-1 rule.

This rule states that all liquids, aerosols, and gels that you carry on a plane must be in containers that are 3.4 ounces (100 milliliters) or less and placed in a clear quart range bag.

But how big is a quart-sized bag?

In this article, we’ll explore everything you need to know about quart-sized bags, including their dimensions, how to use them, and some tips for packing efficiently.

What is a Quart-Sized Bag?

A quart-sized bag is a clear plastic bag that is designed to hold liquids, aerosols, and gels that are 3.4 ounces (100 milliliters) or less.

These bags are required by the TSA to make the security screening process more efficient and to ensure the safety of all passengers.

When considering the size limitations for liquids in your quart-sized bag, it’s essential to know the rules, especially if you’re wondering, “Can you put carbonated beverages in checked luggage?”

Dimensions of a Quart-Sized Bag

A quart-sized bag has specific dimensions that must be followed in order to comply with TSA regulations. It must measure 7 x 8 inches (17.8 x 20.3 centimeters) or have a volume of 1 quart (0.946 liters).

It’s important to ensure that the bag doesn’t exceed these dimensions, including any closures like zippers or snaps.

Purpose of a Quart Size Bag

The primary purpose of a quart-size bag is to facilitate the screening process at airport security checkpoints. Restricting the number of liquids that passengers can carry in their carry-on luggage, helps prevent potential threats and ensures the safety of all passengers aboard the aircraft.

The quart-size bag acts as a convenient container to hold small travel-sized bottles of liquids.

How to Pack a Quart Size Bag

To pack a quart-size bag effectively, follow these guidelines:

  • Use travel-sized containers: Transfer your liquids, such as shampoo, conditioner, toothpaste, and lotions, into travel-sized containers. These containers should have a capacity of 3.4 ounces (100 milliliters) or less, as per TSA regulations.
  • Ensure proper sealing: Close all the containers tightly to prevent leakage during the flight. It is advisable to place them in a small, resealable plastic bag to minimize the risk of spillage.
  • Place the bag in an accessible location: Keep the quart-size bag easily accessible, as you will be required to remove it from your carry-on luggage during the security screening process.

While discussing travel preparations, you might also be curious about unconventional items; for example, have you ever wondered, “Can you put a tent in a dryer?” Find out more about unexpected travel queries in our comprehensive guide.

Tips for Using a Quart Size Bag Effectively

Here are some valuable tips to make the most of your quart-size bag:

  1. Plan ahead: Check the TSA guidelines to familiarize yourself with the rules and restrictions regarding liquids. This will help you pack efficiently and avoid any last-minute hassle.
  2. Opt for travel-sized products: Purchase travel-sized toiletries or transfer your regular-sized products into smaller containers. This will save space in your quart-size bag and ensure compliance with the regulations.
  3. Use reusable quart-size bags: Instead of using single-use plastic bags, consider investing in a durable, reusable quart-size bag. It is an eco-friendly option that can withstand multiple trips.

Advantages of Using a Quart Size Bag

Using a quart-size bag offers several advantages:

  1. Convenience: A quart-size bag allows you to organize your liquids and keep them separate from other items in your carry-on luggage. This makes the security screening process quicker and more efficient.
  2. Compliance with regulations: By using a quart-size bag, you adhere to the TSA regulations, preventing any issues or delays during security checks.
  3. Prevents spillage: The resealable nature of the quart-size bag minimizes the risk of liquid items leaking or spilling inside your luggage, keeping your belongings clean and dry.

Alternatives to a Quart Size Bag

While a quart-size bag is the standard requirement for carrying liquids, there are alternative options available. Some airports offer specialized bins or trays for transporting liquids through security.

However, it is essential to check the specific guidelines of the airport you are traveling from to ensure compliance.

Traveling with a Quart Size Bag: Dos and Don’ts

Here are some dos and don’ts when traveling with a quart-size bag:


  • Do pack only liquids, gels, and aerosols in your quart-size bag.
  • Do make sure the bag is transparent and resealable.
  • Do remove the quart-size bag from your carry-on during security screening.


  • Don’t exceed the maximum capacity of one quart or 1 liter.
  • Don’t pack prohibited items, such as sharp objects or flammable materials, in your quart-size bag.
  • Don’t forget to place the quart-size bag in an accessible location for easy retrieval during security checks.

How to Use a Quart-Sized Bag?

When packing for a flight, it’s important to make sure that any liquids, aerosols, and gels that you carry on are placed in a quart-sized bag. Here’s how to use a quart-sized bag:

  1. Gather all of your liquids, aerosols, and gels that are 3.4 ounces (100 milliliters) or less.
  2. Place them in the quart-sized bag, making sure they fit comfortably and aren’t overcrowded.
  3. Seal the bag closed with a zipper or snap closure.
  4. Place the bag in an easily accessible spot in your carry-on luggage so that you can quickly remove it during the security screening process.

Tips for Packing Efficiently With a Quart-Sized Bag

 Packing all of your liquids, aerosols, and gels into a quart-sized bag can be a challenge, especially if you’re someone who likes to travel with a lot of personal care items. Here are some tips for packing efficiently with a quart-sized bag:

  1. Choose travel-sized containers: When shopping for personal care items, look for travel-sized containers that are 3.4 ounces (100 milliliters) or less. This will help you maximize the number of items you can bring in your quart-sized bag.
  2. Use multi-purpose items: Look for multi-purpose items, such as shampoo and conditioner combos to save space in your quart-sized bag. Consider solid items: Solid personal care items, such as solid shampoo bars can be a great alternative to liquid products.
  3. Consider solid items: Solid personal care items, such as solid shampoo bars can be a great alternative to liquid products.
  4. Share with travel companions: If you’re traveling with others, then consider sharing items like toothpaste and sunscreen to save space in your quart-sized bag.

Understanding the nuances of travel policies is crucial, but it’s equally important to dispel common misconceptions. In our exploration of travel regulations, we uncover what is not true about the travel policy and provide accurate information for a stress-free journey.


A quart-sized bag is an essential item for anyone who travels by plane with liquids, aerosols, and gels.

Its dimensions of 7 x 8 inches (17.8 x 20.3 centimeters) or 1 quart (0.946 liters) in volume are designed to ensure that, all passengers can carry on the appropriate amount of liquids, aerosols, and gels while still maintaining airport security.

By using travel-sized containers, multi-purpose items, and solid products, and sharing with travel companions, you can pack efficiently and maximize the space in your quart-sized bag.

Remember to always place your quart-sized bag in an easily accessible spot in your carry


Can I use any type of bag as a quart-sized bag?

No, a quart-sized bag must be clear and made of plastic so that the contents are easily visible during the security screening process.

What should I do if my liquids don’t fit in a quart-sized bag?

If your liquids don’t fit in a quart-sized bag, you will need to either pack them in your checked luggage or purchase them at your destination.

Can I bring multiple quart-sized bags on a plane?

Yes, you can bring multiple quart-sized bags on a plane, as long as each bag is within the allowed dimensions and only contains liquids, aerosols, and gels that are 3.4 ounces (100 milliliters) or less.

Can I reuse my quart-sized bag for future flights?

Yes, you can reuse your quart-sized bag for future flights as long as it is still in good condition and meets the TSA’s requirements. However, it’s recommended to inspect the bag for any damage or wear and tear before using it again.

Majed Ahmed, a passionate globetrotter, and author, navigates the world through My Travels Guide. With an expert touch, Majed unravels essential travel insights, from packing tips to outdoor gear wisdom. Join Majed on a journey of wanderlust and practical exploration through captivating narratives and informed guidance.