Personal-item planning
Know if your bag belongs under the seat.
Use your airline’s published personal-item size—not a generic bag category—to make a more confident packing decision before the airport.
Measure packed
Use the bag’s actual packed height, width, and depth.
See the margin
We flag the close calls that may be tight in a sizer.
Confirm directly
Every result links back to the airline’s own rule.
Airline-specific fit check
Will it fit under the seat?
Compare your packed personal item with the airline’s published small-bag allowance. We will flag close calls and link you to the official rule.
Need to compare a larger cabin bag instead? Open the Bag Fit Checker →