Carry-On Bag Size Checker
Check whether your carry-on or personal item fits the size and weight limits of major airlines — American, United, Delta, BA, Lufthansa, Ryanair, easyJet and more.
How to use
- 1Measure your bag including wheels and handles.
- 2Enter its dimensions and weight to see which airlines it fits.
How it's calculated
A bag fits if each of its three sorted dimensions is within the airline's sorted limits (so orientation doesn't matter) and it's within any weight limit.
Frequently asked questions
Do wheels and handles count?
Yes — airlines measure the whole bag, including wheels, handles and outside pockets when full.
What's the most universal carry-on size?
55 × 35 × 20 cm (about 21.5 × 14 × 8 in) fits almost every full-service airline worldwide.
Do these rules change?
Budget airlines change bag rules often. These were checked in 2025 — confirm on your airline's site before you fly.