Understanding your checked baggage allowance before you pack can save you from repacking at the check-in desk or paying for excess weight at airport prices. Airlines do not all calculate that allowance the same way. Some give you a total weight to share across your bags, while others give you a set number of bags with a weight limit for each one. The fare you bought matters as much as the airline, so two passengers on the same flight can have different allowances.
This guide explains the weight concept and the piece concept in plain language, shows why the figure of 23 kg appears so often, and covers the hard limits that apply everywhere. It also explains why some fares include no checked bag at all, and how to find the allowance that actually applies to your own ticket before you travel, while you still have time to change what you pack.
The weight concept
Under the weight concept, your allowance is a total number of kilograms that you can spread across your checked bags. What matters is the combined weight of the bags together, not the weight of any single bag on its own, although the 32 kg single-bag limit explained below still applies. Emirates uses allowances of this kind, with Economy Saver at 25 kg and Flex Plus at 35 kg. Qatar Airways also spans a wide range, from Lite at 20 kg to Comfort at 35 kg, so the fare you choose changes the total you can bring.
The advantage of a total is flexibility. With a 25 kg total, for example, the weight can sit unevenly across your bags as long as the bags together stay within 25 kg and no single bag breaks the hard limit. The risk is just as clear: it is easy to keep adding items because no one bag feels heavy, and then discover at the scales that the combined total has crept past your allowance.
The piece concept
Under the piece concept, your allowance is a set number of bags, with a weight cap for each bag. That cap is usually 23 kg per bag, and a bag that is heavier than its cap does not become acceptable just because another bag is light. Emirates and Qatar Airways use the piece concept on their Americas routes. Japan Airlines, known as JAL, gives a clear example, with 2 pieces at 23 kg each. Count your bags as well as weighing them, because an extra bag is outside the allowance even if your total weight looks modest.
Why 23 kg appears everywhere
The figure of 23 kg appears everywhere because it is 50 lb converted into kilograms. On piece-concept routes it has become the standard single-bag cap, so airlines, booking sites and tickets return to it again and again. Knowing that helps you read an allowance quickly: when you see 23 kg on a piece route, you are usually looking at the cap for one standard piece, not a total to be shared freely across several heavier and lighter bags. It is also a practical packing target, because a main suitcase packed to around that weight matches the cap used on many piece routes.
The two hard limits
Two hard limits sit above both systems. First, no single bag may weigh more than 32 kg anywhere, no matter how large your total allowance is. A 35 kg allowance does not permit one 35 kg bag. Second, most airlines cap a piece at 158 cm in total dimensions, meaning length plus width plus height added together. A bag can be within its weight allowance and still be too large in total size. Check both numbers before you travel, especially with bulky items that pack into long or awkward cases. These are limits, not targets.
When your fare includes no checked bag at all
The cheapest fare does not always include a checked bag. Ryanair Value, the easyJet standard fare, Lufthansa Light and Basic fares, and the Etihad Basic fare are examples of fares with no checked bag included, while United Basic Economy is a personal-item-only fare. Travellers often discover this only when they reach the bag drop and find there is nothing to drop. If a price looked unusually low for the route, check whether a checked bag was ever part of it, and look at the fare name on your booking rather than the headline price alone.
How to check your own ticket
With two systems and so many fare types, the safest source is your own booking. The allowance printed on the ticket governs your flight, even if a general guide, another passenger on a different fare, or the same airline on another route suggests something else. On carriers such as EVA Air and Philippine Airlines, the fare brand names decide the allowance, so find that name on your ticket first and read the allowance attached to it. Check before you pack, not at the desk, while you can still move items between bags, leave something behind, or choose a different bag altogether.
Frequently asked questions
What is the standard checked baggage allowance?
There is no single standard. On piece-concept routes the standard cap is usually 23 kg per bag, while weight-concept allowances in this guide range from 20 kg on Qatar Airways Lite to 35 kg on Emirates Flex Plus and Qatar Airways Comfort. The allowance printed on your ticket governs your flight.
Can one checked bag weigh 35 kg?
No. No single bag may weigh more than 32 kg anywhere, so a 35 kg allowance must be spread across bags and can never be used as one 35 kg bag.
Is a checked bag always included in Economy?
No. Ryanair Value, the easyJet standard fare, Lufthansa Light and Basic fares, United Basic Economy and Etihad Basic are examples of fares that include no checked bag at all, so always check your own fare.
Want the allowance for a specific airline? Browse the Airlines index to find your carrier’s checked and cabin allowances, verified against the airline’s own pages.