Will your bag fit?
Carry-on rules for 120+ airlines. Dimensions, weight, personal item, fees — all in one place. Free, fast, accurate.
120+airlines
100+comparisons
1 000+guides
Freetools
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More tools
Route Compliance
Check a multi-segment route — each airline, strictest leg wins.
Fee Calculator
Estimate overweight, oversize, and extra bag fees before you fly.
Compare Airlines
Side-by-side carry-on policy comparison for any two airlines.
Best Picks
Top-rated carry-on bags, packing cubes, and travel accessories.
Why CarrySizer?
Always sourced
Every rule links to the official airline page. We show the last-verified date.
All classes covered
Economy, premium economy, business, first — limits differ and we track them.
Real-world tools
Not just tables. Check your exact bag, plan a multi-leg route, calculate fees.