About CarryOnMax
The world's most comprehensive carry-on baggage checker. Free, transparent, and updated every week.
Our Mission
CarryOnMax was built to solve a simple but frustrating problem: finding out whether your bag will fit in the overhead bin before you get to the gate. Airline baggage policies are scattered across hundreds of different websites, written in confusing language, and change without notice.
We've indexed 700+ airlines, built a weekly automated update system, and created a simple tool that gives you a clear answer in seconds — for free, with no sign-up required.
How It Works
700+ Airlines Indexed
We've manually researched and catalogued the carry-on rules for over 700 airlines worldwide, from major carriers to regional budget operators.
Weekly Automated Updates
Every Sunday at 02:00 UTC, our system uses an AI assistant to review airline policies and update any changes automatically.
Transparent Sources
Every airline entry includes a link to the official source page and a last-checked date so you can verify the information yourself.
Always Free
CarryOnMax is funded by affiliate commissions on bag purchases. We never charge users, never show intrusive adverts, and never require sign-up.
Affiliate Disclosure
CarryOnMax participates in affiliate marketing programmes, including the Amazon Associates Programme and direct partnerships with luggage brands. When you click a "Buy now" link on this website and subsequently make a purchase, we may earn a small commission at no additional cost to you.
Affiliate commissions are our primary source of revenue and allow us to keep CarryOnMax free for all users. Our editorial decisions — including which bags appear in our leaderboard and how compliance scores are calculated — are entirely independent of commercial relationships. We do not accept payment to feature or rank specific products.
All "Buy now" links are clearly labelled and open in a new tab. We only recommend bags that we have verified against our airline database.
Privacy Policy
CarryOnMax does not require you to create an account or provide any personal information to use the bag checker. We do not collect names, email addresses, or payment details from visitors.
We use standard web analytics (page views, session duration, country-level geolocation for unit detection) to understand how the site is used and improve it. This data is aggregated and anonymised. We do not sell data to third parties.
Your IP address is used solely to detect your approximate country for the purpose of automatically selecting the correct units of measurement (centimetres/kilograms or inches/pounds). This is processed server-side and is not stored.
Affiliate links may set cookies on third-party websites (e.g., Amazon) when you click them. We have no control over those cookies. Please refer to the respective retailer's privacy policy for details.
Disclaimer
Airline baggage policies change frequently and without notice. While we make every effort to keep our data accurate and up to date through our weekly automated review process, we cannot guarantee that the information displayed on CarryOnMax reflects the most current policy of any given airline at any given time.
Always verify the current carry-on rules directly with your airline before travelling. CarryOnMax accepts no liability for any baggage fees, charges, or inconvenience incurred as a result of relying solely on the information displayed on this website.
Compliance scores are calculated based on the bag's stated dimensions and the airline's published maximum dimensions. They do not account for soft-sided bag compression, personal item allowances, or gate-check policies, which vary by airline and are not always published.
Contact & Corrections
If you spot an error in our airline data — wrong dimensions, an outdated policy, or a missing airline — please let us know. Accurate data is our core product, and we take corrections seriously. Our weekly automated system will also pick up most changes on its own.