Luggage Weight & Overweight Baggage Fee Calculator
Weigh your bag, check it against your airline's free allowance, and see the overweight fee before you're standing at check-in.
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23 kg is common for economy checked bags — always confirm on your ticket.
Overweight Fee
$60.00
2.0 kg over the limit
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Last updated: August 25, 2026 · Reviewed by the DoCalc team
Why Check Your Bag's Weight Before You Fly
Overweight baggage fees are one of the most avoidable travel costs — a bag that's a couple of kilograms over the limit can trigger a fee that costs more than checking a second bag would have. This calculator does the two things a home or airport scale alone can't: convert cleanly between kg and lb, and immediately translate "how much over" into an actual dollar estimate.
The Formula
If your bag is at or under the allowance, the excess is zero and no fee applies — the calculator will show "within allowance" instead of a dollar figure.
Worked Example
A bag weighing 25 kg, against a 23 kg free allowance, at a $30/kg overweight fee: excess = 25 − 23 = 2 kg, fee = 2 × $30 = $60. In pounds, that same 25 kg bag is about 55.1 lb.
Checked Bag Limits Vary a Lot
There's no single universal weight limit — 23 kg (about 50 lb) is common for economy checked bags on many international carriers, but it can be lower on budget airlines, higher in premium cabins, and fee structures range from a flat "overweight bag" charge to a strict per-kilogram rate. Always check your specific airline's baggage policy for your route and fare before you pack, since this calculator's defaults are just a reasonable starting point, not a guarantee.
Worth knowing: A portable luggage scale (the small hook-and-strap kind) costs very little and pays for itself the first time it saves you a surprise fee at check-in.
Common Mistakes to Avoid
The most common mistake is weighing a bag right after packing but before adding last-minute items like shoes, chargers, or gifts bought while traveling — weigh again right before you leave for the airport. A second mistake is assuming every bag on a multi-leg itinerary has the same allowance; codeshare and connecting flights on different airlines can have different limits for each segment. A third is confusing checked-bag limits with carry-on limits, which are typically much lower and enforced separately.
Frequently Asked Questions
What's the standard checked bag weight limit?
23 kg (about 50 lb) is the most common free checked-bag allowance among major airlines, though it varies by airline, route, cabin class, and fare type — always check your specific ticket.
How much is the overweight baggage fee?
It varies widely by airline and route, commonly $25–$100+ per bag or per extra kilogram over the limit. This calculator uses whatever per-kg rate you enter, since there's no single universal rate.
Should I weigh my bag before I leave for the airport?
Yes — a home or portable luggage scale is the only reliable way to know your exact weight before check-in, since guessing wrong at the airport can mean an expensive last-minute repack or fee.
How do I convert luggage weight between kg and lb?
1 kilogram equals about 2.20462 pounds. This calculator's kg/lb toggle converts automatically — enter the weight in whichever unit your scale shows.
Does carry-on luggage have the same weight limit?
No — carry-on limits are usually much lower (often 7–10 kg) and are checked separately from checked-bag allowances. This calculator is aimed at checked-bag limits, but the same math applies if you enter your carry-on's specific allowance.