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Baggage Combined Dimensions Calculator

Add luggage length, width and height and express the total in inches.

  • Formula & worked example
  • Private in your browser
  • No signup
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Calculator inputs

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How to use this calculator

  1. Enter the known values in the units shown. Results update as you type.
  2. Edit a calculated value to solve backwards, or lock a value to hold it fixed.
  3. Use the worked example to check the method. Reset restores the starting fields.

Private by default

Inputs and results stay in this browser tab. Bookify does not upload or store the values you enter.

Formula and method

Add the three outside dimensions of the bag. Three dimensions of 25.4 centimeters each total 76.2 centimeters, equivalent to 30 linear inches.

Combined dimensions = length + width + height

Worked example

Enter these known values and leave the other values blank.

Length
25.4 cm
Width
25.4 cm
Height (depth)
25.4 cm
Linear inches
30 in

Assumptions and limitations

  • No. Compare the result with the carrier’s current limit for your fare and route. Include wheels and handles when the carrier requires them, and check weight and individual-dimension limits separately.
  • Use the units shown beside each field. This model assumes the stated relationship and does not account for quantities left out of the formula.

Common questions

Does the result confirm an airline will accept my bag?

No. Compare the result with the carrier’s current limit for your fare and route. Include wheels and handles when the carrier requires them, and check weight and individual-dimension limits separately.

References

The calculation equations, inverse formulas, units, and input rules were imported from this source. Bookify provides the interface and equation solver.

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