Before you fly
Compare carry-on bag size, weight and item count
Compare carry-on dimensions, measured bag weight and cabin item count with the airline limits you enter for a specific flight.
Compare a bag's outside dimensions with the limit published by your airline for your exact flight and cabin. Enter the airline's maximum length, width and depth, plus the bag's three dimensions. The checker allows any orientation.
Enter the bag dimensions and the airline's maximum dimensions in the selected unit.
Measure the bag at its widest outside points, including wheels, handles and protrusions. Enter the limits from the airline for the flight, cabin, fare and item type you will use. This part checks dimensions only; use the rule comparison below for bag weight and item count.
Compare carry-on weight and item count
Enter the bag's measured weight, the airline's maximum weight, the number of items of this type you plan to bring, and the count allowed for that item type on this flight.
Enter your bag measurements and the airline's current weight and item-count rules.
Use values for one operating-airline flight segment, cabin, fare and item type. Enter the count for the item category covered by the rule; an under-seat personal item may have a separate allowance. If the itinerary has multiple operating airlines, run a separate check for each one. A zero item allowance is valid. The source and check date are recorded in the result; they are supplied by you and are not independently verified by this page.
Confirm the rule for your itinerary
Airline baggage allowances and conditions apply, and carry-on limits can vary by airline, cabin class and aircraft. IATA publishes a general dimension reference, but your airline's current conditions take precedence. Confirm measurements for every flight, including separately booked connections.
Source and scope
IATA says allowances and conditions remain airline specific; carry-on allowances can vary by airline, cabin and aircraft, and some airlines apply weight limits. Its published dimension reference is not a universal entitlement. This tool does not use any IATA example as a default limit and does not check airline rules automatically.
How it works
Enter the three outside dimensions, then compare measured bag weight and planned cabin item count with the limits published for the operating airline, exact flight and cabin or fare. Record the airline source and date checked.
Good to know
Does a fit result guarantee the bag can go in the cabin?
No. This checker compares only the three dimensions you enter. Airlines can apply separate weight, item-count, cabin, aircraft and fare rules; confirm current terms for every flight.
Should I include wheels and handles?
Yes. Measure the bag at its widest outside points, including wheels, handles and other protrusions, then compare with the airline's stated measurement method.
Can I use the same allowance for every flight in my itinerary?
Not necessarily. Allowances can vary by operating airline, cabin, fare and aircraft. Run a separate comparison for each operating-airline segment and check whether a personal item has a separate allowance.
Does a passing weight and count comparison guarantee acceptance?
No. The comparison uses the rule values and source details you enter. Confirm current terms, measurement method, item type, aircraft instructions and any gate changes with the operating airline.
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