How accurate are the airline limits shown?

They are reference profiles, not a guarantee for a specific ticket. Airlines update policies and may vary allowances by fare, route, cabin, loyalty status and operating carrier. Use the official-policy link in the result and the allowance printed in your booking before travel.

Does the linear inches / total size matter?

Yes — many airlines specify a maximum linear size (length + width + height combined) in addition to individual dimension limits. This tool checks both per-dimension limits and the linear total where applicable.

What is the difference between a carry-on and a personal item?

A carry-on goes in the overhead bin. A personal item (purse, backpack, laptop bag) must fit under the seat in front of you. This tool focuses on carry-on and checked bag rules; personal item limits vary widely and are typically smaller than carry-on limits.

Why might my bag pass the size check but still get gate-checked?

Airlines reserve the right to gate-check bags when overhead bins are full, even if the bag meets size limits. Full flights and early boarding groups reduce this risk.

Are carry-on weight limits always enforced?

Enforcement varies by airline, airport, route and flight. A bag may be measured or weighed at check-in or at the gate, so use the operating carrier’s current policy instead of assuming a limit will not be checked.

Baggage Allowance Checker

Compare your bag with a major airline’s reference size and weight profile, then verify the fare-, route- and status-specific allowance on the airline’s official page.

Bag Details

Bag Type

Airline

Units

Inches & pounds

Length

Width

Height

Weight

Select an airline, enter your bag measurements,
and click Check Allowance.

Allowance Details

Measurement	Your Bag	Limit	Status

Verify on the airline's official baggage page ↗

Policy scope and privacy

Reference profiles were reviewed on September 17, 2026. Your fare, route, operating carrier, status and travel date can change the allowance, so confirm the result on the airline link shown after each check. Measurements and calculations stay in your browser and are not sent to a baggage-calculation service.

Official examples: JetBlue bag calculator, American checked baggage policy, and Singapore Airlines cabin baggage.

Summary

Compare your bag with a major airline’s reference size and weight profile, then verify the fare-, route- and status-specific allowance on the airline’s official page.

How it works

Select whether you are checking a carry-on bag or a checked bag.
Choose your airline from the dropdown.
Enter your bag's length, width, and height in either inches or centimeters.
Enter the bag weight in pounds or kilograms.
Click "Check Allowance" to see a pass/fail result for each limit.
Review the airline's official limits displayed alongside your measurements.

Use cases

Confirm your carry-on fits before reaching the gate.
Avoid overweight baggage fees on checked luggage.
Compare allowances across airlines when booking flights.
Pack smarter by knowing the exact limits for your route.
Check a personal item or backpack against airline size rules.
Prepare for international flights where limits differ from domestic.

Frequently Asked Questions

Last updated: 2026-09-22 · Reviewed by Nham Vu