What is the size comparison table in the suitcase?

Common suitcases mainly have the following sizes: 20 inches or less can be taken on the plane, and more than 20 inches need to be checked.

13 inch suitcase size: 28cm * 40cm * 13cm.

16 inch suitcase size: 3 1cm * 43cm * 13cm.

17 inch suitcase size: 32cm * 45cm * 18cm.

18 inch suitcase size: 34cm * 44cm * 20cm.

20-inch suitcase size: 34cm * 50cm * 20cm.

22 inch suitcase size: 39cm * 58cm * 24cm.

24 inch suitcase size: 42cm * 68cm * 26cm.

26 inch suitcase size: 45cm * 67cm * 28cm.

28 inch suitcase size: 47cm * 78cm * 28cm.

32-inch suitcase size: 53cm * 88cm * 30cm.

Extended data:

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Under 20 inches: suitable for short trips by one person and children.

20 inches: the most practical, can be checked, and the space is moderate.

24/28: large capacity, suitable for long-distance travel for 3-5 days, bring luggage to school. But it is inconvenient to take a train with such a box.

Finally, if it is a student party, I personally think that 24 inches is enough. 20/22 inches is enough for a short trip.