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CarrySizer

All-airline reverse fit

Which airlines allow your carry-on size?

Enter your exact dimensions, filter by region or fare assumption, and see which airlines fit, might fit, or fail before you choose a flight.

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How to read the counts

The count is a starting point, not your boarding guarantee

Cabin-bag fit means the bag is inside the airline's published overhead-bin dimensions. Personal-item fit means it also fits at least one underseat box. Fare bundles, priority add-ons, and gate strictness can still change what you are allowed to bring.

Fastest workflow

  1. 1. Pick the closest preset above.
  2. 2. Open the checker with dimensions pre-filled.
  3. 3. Search your airline and cabin class for the final verdict.

Frequently asked questions

Which airlines allow a 55×40×20 cm carry-on bag?

Many European and full-service airlines accept a 55×40×20 cm bag as a cabin bag, but low-cost fares can require a smaller personal item unless you add priority or cabin-bag allowance. Use the custom reverse-fit checker on this page because one extra centimetre in depth can change the verdict.

Is 56×45×25 cm accepted as cabin luggage?

56×45×25 cm is a large overhead-bin size. It can fit some full-service policies, but it is often oversized for strict low-cost airlines. Always include wheels and handles when measuring.

Can a personal item count as carry-on luggage?

A personal item is usually included under the seat, while a cabin bag goes in the overhead bin. A small bag may fit both size boxes, but your fare decides whether you can bring the larger cabin bag.

Why do different sites show different airline size results?

Airlines change fare bundles and baggage pages often. CarrySizer separates cabin-bag, personal-item, weight, and strictness data, then links users to exact airline pages for the latest source context.

Keep exploring

Rules can change. Always verify with your airline before flying.