How accurate are the airline limits shown?

Limits are based on publicly available airline policies as of 2026. Airlines update policies periodically, so always confirm with your airline before travel. The limits shown are the standard economy-class allowances.

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 weight limits for carry-ons enforced at US airports?

Most US carriers (American, Delta, United, Southwest) do not enforce carry-on weight limits at the gate, though limits exist on paper. Budget carriers like Spirit and Frontier are stricter. International airlines typically do weigh carry-ons.

Baggage Allowance Checker

Name: Baggage Allowance Checker
Availability: InStock
Author: Nham Vu

Enter your bag dimensions and weight, pick an airline and bag type, and instantly see if your luggage meets the allowance.

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

Summary

Enter your bag dimensions and weight, pick an airline and bag type, and instantly see if your luggage meets the allowance.

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: 2026-06-10 · Reviewed by Nham Vu