Luggage Size Check
Check a bag's dimensions against an airline's linear-size limit.
About Luggage Size Check
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.
Formula
Luggage Size Check
Linear inches = (L + W + D) x 0.393701
- linear
- Length plus width plus depth in inches
Worked example
With the default values below, Luggage Size Check returns Linear Size of 46.5. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Lengthminimum 0 cm
- 55 cm
- Widthminimum 0 cm
- 40 cm
- Depthminimum 0 cm
- 23 cm
- Linear limitminimum 1 in
- 62 in
Results
- Linear Size
- 46.5 in
- Over by
- 0.0 in
- Fits Status
- Within the linear limit
Step by step
- 1Values used
- 2Luggage Size Check
- 3Linear Size= 46.5 in
- 4Over by= 0.0 in
- 5Fits Status= Within the linear limit
Assumptions and limits
- The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Luggage Size Check calculated?
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.
Why does Luggage Size Check matter?
An oversize bag triggers checked-bag fees or gate-checking, so checking linear dimensions against the limit avoids last-minute conflicts with the crew.
What values do I need to enter?
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.