SESK: Stuff Everyone Should Know · sesk.info/trav-tsa-311-container-size
In the TSA 3-1-1 rule, each liquid container in your carry-on can be how large?
3.4 ounces (100 ml) or less.
- 3.4 ounces (100 ml) or less ✔
- 6 ounces (180 ml) or less
- 8 ounces (240 ml) or less
Why: Each container must be 3.4 ounces or 100 milliliters or less, and all must fit in one quart-sized bag. Larger containers belong in checked bags.
Huh, didn't know that: The rule covers aerosols, gels, creams and pastes, not just drinks.
My shampoo is 3.4 ounces. It's the only thing at the airport that fits in.
Like this card?
References
Answer: 3.4 ounces (100 ml) or less. Each container must be 3.4 ounces or 100 milliliters or less, and all must fit in one quart-sized bag. Larger containers belong in checked bags.
- TSA: Liquids rule www.tsa.gov/travel/security-screening/liquids-rule
travel-sized containers that are 3.4 ounces (100 milliliters) or less per item
Checked 2026-10-11.
Think this answer is wrong? Tap "Challenge this answer" on the card in the game and tell us why.
More stuff everyone should know
TravelHow many quart-sized bags of carry-on liquids does the TSA 3-1-1 rule allow per traveler?TravelDoes TSA require children under 18 to show ID when flying with a companion within the US?TravelDuty free liquids over 3.4 oz in a sealed bag on an international connection must have a receipt from within how long?
That's stuff everyone should know.