Check a bag's dimensions against an airline's linear-size limit.
Airlines enforce size limits as the sum of the three outer dimensions in inches, so converting centimeters and summing tells you whether the bag is accepted. Any excess is the amount you exceed the published limit by. An oversize bag triggers checked-bag fees or gate-checking, so checking linear dimensions against the limit avoids last-minute conflicts with the crew.
Luggage Size Check
Linear inches = (L + W + D) x 0.393701
Linear inches = (L + W + D) x 0.393701 Airlines enforce size limits as the sum of the three outer dimensions in inches, so converting centimeters and summing tells you whether the bag is accepted. Any excess is the amount you exceed the published limit by.
An oversize bag triggers checked-bag fees or gate-checking, so checking linear dimensions against the limit avoids last-minute conflicts with the crew.
This calculator takes 4 inputs: Length, Width, Depth, Linear limit. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.