What size is a TSA bag?

Most domestic airlines specify 22 inches by 14 inches by 9 inches as the maximum size for carry-on baggage. There are some exceptions as listed below in our airline specific summary. Maximum dimensions include the wheels and the handles of your bag, so factor those into your measurements when assessing your bag.



The "TSA bag" refers to the specific clear, plastic, quart-sized bag used for the 3-1-1 liquids rule. A standard quart-sized bag is approximately 7 inches by 8 inches (17.8 cm x 20.3 cm). According to TSA regulations, every passenger is limited to one such bag in their carry-on luggage. All liquids, gels, and aerosols must be in containers of 3.4 ounces (100 milliliters) or less, and all of these containers must fit comfortably inside that single quart bag. In 2026, while many airports have installed advanced "CT scanners" that allow you to keep your liquids inside your suitcase, the "one quart bag" rule remains the official federal standard for all travelers. If your bag is larger than a quart (such as a gallon-sized Ziploc) or if you have multiple bags, TSA agents are permitted to make you discard the excess items. For a more durable and eco-friendly option, many travelers now purchase reusable, TSA-approved silicone or PVC pouches that are exactly 1-quart in volume, ensuring they stay compliant with the 3-1-1 rule while also preventing messy leaks inside their carry-on.

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Size and Weight Restrictions Typically, the bag must be within the cabin baggage dimensions of around 22 x 14 x 9 inches (56 x 36 x 22 cm), commonly considered the standard size for carry-on. Any bag within this dimension can fit most aeroplanes' overhead compartments.

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You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and pastes in your carry-on bag and through the checkpoint. These are limited to travel-sized containers that are 3.4 ounces (100 milliliters) or less per item.

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You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and pastes through the checkpoint. These are limited to 3.4 ounces (100 milliliters) or less per item. This is also known as the 3-1-1 liquids rule.

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Is toothpaste considered a liquid by the TSA? Yes, toothpaste must adhere to the 3-1-1 rule for liquids and gels. Toothpaste can be brought through TSA security in your carry-on as long as it is 3.4 ounces (100 milliliters) or less and placed in a 1-quart bag.

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Usually, many airlines won't check every carry-on but will instead go for ones that look oversized. If your luggage does not fit in the sizer, you might have to pay a checked bag fee along with the gate checking fee and have your bag transferred to the airplane's cargo.

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With plenty of space to pack bulky clothes, we think the Nomatic Travel Bag 40L would make an excellent carry-on backpack for any and all types of trips since it can be carried multiple different ways—which also makes it an ideal convertible bag.

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While this can be confusing, most popular airlines allow you to bring a carry-on and personal item, such as a backpack or purse. In general, your personal item should be smaller than your carry-on and under the specific airline's carry-on dimensions, allowing it to fit under the seat in front of you.

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The groin area between the abdomen and thigh contains several lymph nodes, blood vessels, and muscles. Airport body scanners often target the groin area because it contains sensitive areas that could be mistaken for weapons or explosives.

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If your luggage does not fit in the sizer, you might have to pay a checked bag fee along with the gate checking fee and have your bag transferred to the airplane's cargo. Checked luggage is usually measured with a tape measure, to make sure that it's below 62 linear inches (height + width + depth).

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If the baggage size, be it check in bag or cabin bag, is higher than usual, you may need to pay additional sum if required. If the baggage is too big or too heavy, the airline may send it separately by cargo plane. You may need to pay additional sum if required.

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Measuring the size of your luggage isn't tricky. Most airlines require that your bag be 62 linear inches or less. Therefore, your bag's length, width and height cannot exceed 62 inches. This measurement includes the wheels and the handle of your luggage.

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For the TSA, which regulates travel in the United States, all liquids, gels, and aerosols must be in containers that are 3.4 ounces (100 milliliters) or less. All liquids must fit into a single, clear quart-size bag — passengers can only pack one of these bags in their carry-on.

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Think the usuals, like shampoo, toothpaste, and aerosol or roll-on liquid deodorant (solid deodorant isn't regulated by the 3-1-1 rule). But here are some surprising items that the TSA prohibits in carry-on luggage.

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Back here in the U.S., though, 3-1-1 remains the prevailing order, for the foreseeable future, when it comes to liquids, gels, aerosols, creams, and pastes. And those rules remain: No single bottles of more than 3.4 ounces, all bottles in one clear plastic bag, with no more than one such bag per passenger.

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