Carry-On Size Checker
Enter your bag's dimensions once and see how it stacks up against the cabin limits of 20 major airlines. Bags can rotate, so we check the best-fitting orientation.
How your bag measures up
| Airline | Region | Cabin limit | Your bag |
|---|
Limits include wheels and handles and are checked in centimetres. Low-cost carriers vary by fare — always confirm with your airline before travel.
Bag too big? Here's what we'd do
Carry-on size — frequently asked
What is the standard carry-on size?
Most US airlines allow about 22 × 14 × 9 inches (56 × 36 × 23 cm) including wheels and handles. Many European and Asian carriers are smaller, and low-cost airlines smaller still — so always check your specific airline before you fly.
Do carry-on size limits include the wheels and handles?
Yes. Airlines measure the bag’s total external dimensions, so wheels and handles count. Measure your packed bag at its widest points, not the manufacturer’s listed size.
Why do carry-on limits differ between airlines?
There is no single global standard — each airline sets its own cabin-bag policy based on aircraft and overhead space. A bag that flies fine on one airline can be rejected on another, which is why this tool compares 20 at once.
What happens if my bag is slightly over the limit?
Gate agents sometimes allow a small overage, but it is at their discretion — on a full flight an oversize bag may be gate-checked. If your bag is within about 1 cm of a limit, this checker flags it as "very tight."
Does this include the personal item / under-seat bag?
No — these are the larger cabin-bag (overhead) limits. Personal-item and under-seat allowances are smaller and set separately by each airline.