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CarrySizer

Interactive checker

Will Your Carry-On Bag Fit?

Enter length, width, depth, and optional weight once. CarrySizer checks the exact airline limit, cabin-class overrides, and whether the same bag fits other airlines.

Bag fit checker

Checks one bag against a specific airline's published cabin-bag limit, then against every other airline in the database.

You enter
Length, width and depth in cm or inches, optional weight, airline and cabin class
You get
Whether the bag fits, which exact dimension breaks the limit, and which other airlines accept the same bag

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What the checker actually compares

The verdict is not based on a generic cabin-bag size. It checks each external dimension separately, includes wheels and handles where the airline counts them, and only applies weight when that airline publishes a cabin-bag weight limit.

Per-dimension margins

A bag can fail by depth even when length and width are fine. The result calls out the exact dimension that breaks the limit.

Class-aware allowances

If the airline publishes different cabin limits for economy, business, or first class, the checker uses the cabin class you select.

Reverse fit search

The all-airline summary checks your bag as cabin baggage or a personal item across 162 active airline policies. Historical records are excluded.

Frequently asked questions

How do I know if my carry-on bag will fit?

Measure your packed bag's length, width, and depth in centimetres — including wheels and handles, which most airlines count — and compare each dimension against your airline's limit. Every dimension has to be within the limit: being under on two but over on one still fails.

Do wheels and handles count toward carry-on size limits?

On most airlines, yes. The stated maximum includes wheels, handles, and external pockets, so measure the bag at its widest points fully packed rather than trusting the manufacturer's nominal size.

What is a personal item versus a carry-on?

A personal item is a smaller bag that fits under the seat in front of you — a backpack, handbag, or laptop bag. A carry-on (cabin bag) is the larger bag for the overhead bin. Many basic fares include only the personal item.

Keep exploring

Embed this tool on your site

Free to use. Add the carry-on checker to your travel blog with one line of HTML.

Responsive iframe

Best for articles, sidebars, and resource pages. The attribution line under the iframe is optional — keep it or delete it; if you keep it, keep rel="nofollow".

<iframe
  src="https://carrysizer.com/embed/check/"
  width="100%"
  height="560"
  style="border:none;border-radius:12px;"
  title="Carry-On Bag Fit Checker"
  loading="lazy"
></iframe>
<!-- Optional attribution — keep or remove: -->
<p style="font:12px system-ui;margin:6px 0 0;">
  Checker by <a href="https://carrysizer.com/" target="_blank" rel="nofollow noopener">CarrySizer</a>
</p>

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