Most US airlines limit standard checked bags in economy to 62 linear inches (158 cm), the total of length, width and height, and 50 lb (23 kg). Premium cabins often allow 70 lb (32 kg). Many international airlines also use 23 kg for economy, though some use different weight or piece allowances. Bags over the limit cost extra, and very heavy bags may not be accepted, so weigh your bag before you leave.
Checked bag limits look simple until you are repacking at the check-in desk. Here is how they work.
Size: linear inches
Airlines measure checked bags by linear inches: length + width + height, including wheels and handles.
- Most common limit: 62 linear inches (158 cm).
- Example: a 28 x 19 x 12 inch suitcase is 59 linear inches and fits.
Weight
| Cabin | Typical limit |
|---|---|
| Economy (most US airlines) | 50 lb (23 kg) |
| Premium cabins | Often 70 lb (32 kg) |
| Absolute maximum per bag | Often 100 lb, though many airlines won’t accept bags over 70 lb |
International airlines vary: many use 23 kg in economy, some use a total weight allowance, and budget airlines often charge by weight.
Overweight and oversize fees
Bags over the limit usually cost extra in steps, for example 51 to 70 lb and 71 to 100 lb. Oversize fees apply above 62 linear inches. Fees vary by airline and route, and can cost more than a second bag.
Choosing checked luggage
- Size: medium (around 24 to 26 inches) for a week, large (28 to 29 inches) for longer trips. Large bags fill up past 50 lb quickly.
- Empty weight: lighter bags leave more of your allowance for packing.
- Wheels: sturdy spinner or recessed two-wheel designs.
- Durability and warranty: checked bags take hard knocks.
Avoid surprises
- Weigh your bag at home with a luggage scale.
- Check the allowance on your fare type, since basic economy often excludes a free checked bag.
- Pack heavy items in your carry-on within its limits.
- Put a tracker and a name tag inside and outside the bag.
Common questions
What is the standard checked bag size?
62 linear inches (158 cm) is the most common limit: add the bag's length, width and height, including wheels and handles.
How heavy can a checked bag be?
50 lb (23 kg) in economy on most US airlines and many international airlines. Premium cabins often allow 70 lb (32 kg). Check your airline and fare.
What size suitcase fits the 62-inch limit?
Large suitcases around 28 to 29 inches tall usually fit, depending on width and depth. Add all three dimensions to check.