As previously stated, there is absolutely no regular dimension for carry on luggage. Even so, the top ordinary measurement for just a carry on luggage is fifty six x 36 x 23cm, and this fulfills most of the Australian Airways and international carry on requirements. Or check your bag—your preference. https://check-in-suitcases15454.bloggerbags.com/36860505/a-simple-key-for-childrens-luggage-unveiled