Online Tool Store
Carry-On Size Checker
Enter your bag's dimensions and weight to check it against American, Delta, United, Southwest, Ryanair, easyJet, and more real airline carry-on limits.
This works right here on your device — nothing gets sent out.
Travel
Carry-On Size Checker
Your bag
Compare against airlines
| Airline | Bag type | Max size | Max weight | Fits? |
|---|
Airline policies change and can vary by fare class or route — always confirm current rules with your airline before flying.
How it works
- Enter your bag's length, width, and height, in inches or centimeters, plus its weight if you know it.
- The checker compares your dimensions — in whichever orientation fits best — against each airline's published carry-on limit.
- Weight is only checked against airlines that publish a cabin weight limit; airlines with no published limit are marked with a dash.
- Review the fit column for each airline, and read the note beside each row for fare-specific conditions.
FAQ
How does the fit check work?
It sorts your bag's length, width, and height from largest to smallest and compares them against each airline's limit sorted the same way — the same logic a rigid gate sizer uses, since a bag can be inserted in whichever orientation fits.
Why does the same airline sometimes show two rows?
Some low-cost carriers only include a small under-seat bag for free — a larger cabin bag requires a specific fare or a paid add-on (Priority, Plus, Inclusive). Both are listed separately so you know which one is actually free on your ticket.
Where do the size limits come from?
Each airline's own published baggage policy page, checked against independent sources. Airlines publish carry-on dimensions in their own primary unit — inches for U.S. carriers, centimeters for the others — so this tool compares against that primary unit instead of a rounded conversion, to avoid a bag at the exact limit being wrongly flagged.
Is this guaranteed to match what happens at the gate?
No — airline policies change, vary by fare class and route, and gate agents have final discretion. Always confirm current limits on your airline's own site before flying, especially close to your travel date.
What is the IATA "Cabin OK" guideline row?
IATA proposed a voluntary optimum cabin bag size (55 x 35 x 20 cm) in 2015 so a bag would fit on almost any aircraft. It was never widely adopted by individual airlines — it is shown here for reference, not as a rule any specific airline enforces.
How we compare
| Feature | Online Tool Store | MyBagFits | CarryFit |
|---|---|---|---|
| No account required | Yes | Yes | Yes |
| Sorted-dimension fit check (any orientation) | Yes | Yes | Not shown |
| Weight limit check where published | Yes | Not shown | Yes |
| Distinguishes free vs. paid bag tiers on budget carriers | Yes | Not shown | Not shown |
| Voluntary IATA guideline shown for reference | Yes | Not shown | Not shown |
For a quick check against major U.S. and international carriers — including the fine print that budget airlines only include a small bag for free — this keeps the comparison honest instead of just listing one number per airline.