55×40×20 cm
Common EU cabin bag
A strong baseline for many European carriers and paid cabin-bag fares.
- Cabin fit
- 63
- Personal item
- 0
Exact size: 55×40×20 cm · 21.7×15.7×7.9 in
Check this sizeAll-airline reverse fit
Which airlines allow your carry-on size?
Start with common cabin-bag sizes, see how widely they fit, then open the exact checker with dimensions pre-filled for your trip.
- airlines compared
- 120+
- popular size presets
- 3
- schema-ready answers
- FAQ
56×45×25 cm
Large overhead cabin bag
Often fine on full-service airlines, risky on stricter low-cost carriers.
- Cabin fit
- 7
- Personal item
- 0
Exact size: 56×45×25 cm · 22×17.7×9.8 in
Check this size45×36×20 cm
Underseat-friendly bag
Designed around personal-item travel, especially for basic fares.
- Cabin fit
- 98
- Personal item
- 3
Exact size: 45×36×20 cm · 17.7×14.2×7.9 in
Check this sizeHow 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. Pick the closest preset above.
- 2. Open the checker with dimensions pre-filled.
- 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 exact checker 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.
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Rules can change. Always verify with your airline before flying.