Free travel tool
Baggage size checker
Compare your bag with the dimensions for your ticket, including when one set is in centimetres and the other is in inches.
Have your bag ready. Choose your airline to compare against its published carry-on allowance, or enter the limits from your ticket yourself. The tool compares the measurements; your airline decides whether the bag is accepted.
See how the dimensions compare
Enter both sets of measurements to see a side-by-side comparison and proportional front and side views.
Include the bag in your flight budget
A size comparison is one part of choosing a fare. Check the allowance, weight and any baggage charge for your exact ticket before paying.
Before you measure
Use the right allowance
Find the dimensions for the bag type, fare and operating airline on your booking. A cabin bag and a personal item can have different allowances. Use this comparison when separate height, width and depth limits are given.
Measure the packed bag
Measure the outside of the bag as you plan to carry it, including anything that sticks out. Check the airline’s instructions for handles, wheels and pockets. Keep the same orientation for both sets of dimensions.
Check the other conditions
A size comparison does not check weight, the number of items, your fare entitlement or space on the aircraft. Confirm those with the airline and keep essentials accessible if you are asked to check the bag.
What this result means
The comparison uses the numbers you enter, with an exact centimetre–inch conversion. Airline allowances come from each airline's official baggage page, linked from the checker. The tool does not rearrange the sides or predict a bag-sizer check. The combined-size card adds the three sides; its rounded conversion does not decide whether the bag meets a combined-size limit. This is not a pet-carrier or animal-fit assessment.