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Luggage Weight Calculator

Check luggage weight against the allowance and estimate excess fees.

About Luggage Weight Calculator

Per-kilogram charging makes small excesses cheap and large ones expensive, while flat fees do the reverse. Moving two kilograms into hand luggage usually costs nothing and removes the charge entirely. Airport excess baggage rates are typically several times the price of pre-booking additional allowance online.

Formula

Luggage Weight

Excess = bag weight − allowance; fee is per kilogram or a flat charge

per kilogram fee
Charged for each kilogram above the allowance
flat overweight fee
A single charge for any bag over the limit

Worked example

With the default values below, Luggage Weight Calculator returns Excess Weight of 3.50. Change any input above and every figure here is recalculated in your browser.

Inputs used

Bag weightminimum 0 kg
26.5 kg
Weight allowanceminimum 0 kg
23 kg
Excess fee per kilogramminimum 0
12
Flat overweight fee if applicableminimum 0
65
Fee structureone of Per kilogram over, Flat overweight fee
Per kilogram over

Results

Excess Weight
3.50 kg
Excess Baggage Fee
$42.00
Share of Allowance Used
115.22%
Weight to Remove to Avoid the Fee
3.50 kg
Verdict
Significantly over — expect an excess charge at check-in

Step by step

  1. 1Values used
  2. 2Luggage Weight
  3. 3Excess Weight= 3.50 kg
  4. 4Excess Baggage Fee= 42.00
  5. 5Share of Allowance Used= 115.22
  6. 6Weight to Remove to Avoid the Fee= 3.50 kg
  7. 7Verdict= Significantly over — expect an excess charge at check-in

Assumptions and limits

  • The result is derived only from the 5 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax or compounding frequency into account.
  • Figures are rounded for display to 2 decimal places, 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 Weight calculated?

Excess = bag weight − allowance; fee is per kilogram or a flat charge Per-kilogram charging makes small excesses cheap and large ones expensive, while flat fees do the reverse. Moving two kilograms into hand luggage usually costs nothing and removes the charge entirely.

Why does Luggage Weight matter?

Airport excess baggage rates are typically several times the price of pre-booking additional allowance online.

What values do I need to enter?

This calculator takes 5 inputs: Bag weight, Weight allowance, Excess fee per kilogram, Flat overweight fee if applicable, Fee structure. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.

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