So for example, if you measured that your luggage was 28 x 20 x 12 inches, then it would be 60 linear inches in total (28 + ...

Airlines calculate carry-on luggage size measurements using two methods: Height by width by depth: Most – but not all – airlines measure bags by inches or centimeters using this formula ...

That's why when looking at the product descriptions, always look for the "overall size". At the check-in desks, checked ...