What is the average size of a suitcase?

The average suitcase measures around 26 inches from the bottom of the wheels to the top of the case with the handle pushed down. There are different categories of suitcases that each have their own average size.

For small carry-on suitcases the average measurement is between 18 to 20 inches. The largest size of a carry-on bag is no more than 22 inches. Americans mainly use carry-ons that are around 21 to 22 inches. Checked baggage has a wider range of sizes, beginning at 24 inches and going up to 30 inches. The most popular checked baggage size is any suitcase from 25 to 27 inches.