To find the answer to this question please see the web site of the airline you will be using. Weight varries from airline to airline as well as what your destination.
It means that Length + Breadth + Height of your cuboid shaped luggage is 115 inches.
for checked luggage add the length and width and height which cannot exceed 80 inches in this case
In the context of a piece of luggage you sum together its length, width and height - each of them measured in inches.
45 linear inches refers to the combined length, width, and depth of the suitcase. So it would seem that you could have something 41" x 2" x 2", but that is not realistic and 9" x 14" x 22" are mostly accepted in the USA.
It means that the sum of the length, breadth and height of the luggage is 51 inches. The individual measurements cannot be determined.
Linear inch is a fantasy word from the airlines. It means: X linear inches = length + width + depth (measured in inches). Inches are still inches. A 62 "linear inch" bag could measure 60" by 1" by 1" or 21" by 21" by 20" or any other set of dimensions that add up to 62.
Luggage size is typically measured by length x width x height . This is in inches or centimeters. For the luggage total size, simply multiply the three numbers together. Luggage can also be measure by weight. This is in terms of Kilograms or Pounds
2.54 cm = 1 inch. Divide 158 by 2.54 to convert to inches (158 ÷ 2.54 = 62.2 inches)
45. The inch is a linear measurement, so the adjective is unnecessary.
It means that the sum of the length, breadth and height of the luggage is 45 inches. The individual measurements cannot be determined.
Length- Height-
The total sum of the length, height, and width of a single piece of luggage. For example. a cube 4 inches on a side with a volume of 64 cubic inches has a linear dimension of 12 inches.