Excess baggage fee calculator

Enter the bag's actual weight, the free weight limit, the published fee amount, and whether the airline charges by excess kilogram or by overweight bag. The result separates the excess weight from the estimated charge, making it easier to compare repacking, prepaying baggage, or accepting the airport fee before travel.

Gather the rule that applies to your ticket

Start with the baggage terms attached to the exact fare, route, cabin, and loyalty status on your booking. Airlines often publish several limits, and the allowance shown for one route or ticket type may not apply to another. Weigh one packed bag on a reliable scale, then enter that weight in kilograms. Use the included weight for that individual bag as the free allowance. Next, identify how the carrier describes its overweight charge. Select per kilogram when the published price is multiplied by every kilogram above the limit. Select per bag when crossing the limit triggers one fixed overweight fee for that bag. Enter the fee in the same currency you want displayed. This calculator evaluates one bag at a time, which avoids assuming that unused allowance from one bag can be transferred to another. If your booking permits pooled allowance, multiple weight bands, or a separate piece limit, calculate each relevant bag and then confirm the combined result against the airline's own rules.

Understand how the estimate is calculated

The calculator subtracts the free allowance from the actual bag weight. A result at or below zero means the bag is not overweight, so the estimated excess fee is zero. When the difference is positive, that difference is the excess weight. Under a per-kilogram rule, the excess weight is multiplied by the fee amount. For example, a fractional kilogram remains part of the calculation rather than being silently discarded. Under a per-bag rule, any positive excess triggers the fixed fee once, regardless of how far the bag exceeds the allowance. The output includes the submitted weight, allowance, excess weight, fee method, rate, currency, and estimated charge so the assumptions remain visible. Monetary results are rounded to two decimal places and weights to three decimal places for stable reporting. Airlines may instead round weight upward, use weight bands, or apply taxes. If their policy specifies such treatment, regard this result as a planning estimate and apply the carrier's stated rounding or band rule before purchase.

Use the result to choose the practical option

An excess fee estimate is most useful before you reach the check-in desk. Compare the charge with the cost of buying additional baggage online, moving items into another permitted bag, wearing or carrying eligible items, or shipping non-urgent belongings. Reweigh the bag after every change because a small difference can remove a fixed overweight charge entirely. Also check the airline's maximum accepted weight: paying an overweight fee does not necessarily mean a very heavy bag will be carried, and workplace handling limits may cause it to be refused or treated as special baggage. The calculator does not include extra-piece charges, oversize dimensions, sports-equipment rules, dangerous-goods restrictions, taxes, card fees, or currency conversion. Those items can exist alongside an overweight fee. Save the output with the fare rules you consulted so another traveler can see the basis of the estimate. Immediately before departure, verify the allowance and fee on the booking confirmation or the carrier's official baggage page, since airport and advance-purchase prices can differ.