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How many inches is the carry-on suitcase?

2025-12-25 16:01:37 travel

How many inches is the carry-on suitcase? Analysis of hot topics across the Internet and purchasing guide

Recently, "carry-on suitcase size" has become a hot topic among travel enthusiasts. With the adjustment of aviation policies and the rebound in travel demand, how to choose a suitcase that meets the standards has become a must-do before traveling. This article will combine the hot content of the entire Internet in the past 10 days to provide you with a detailed analysis of the boarding suitcase size standards and provide structured data reference.

1. Background of hot topics across the Internet

How many inches is the carry-on suitcase?

According to social media and search engine statistics, topics related to "carrying suitcase size" have soared in popularity in the past 10 days, mainly due to the following reasons:

hot eventsDiscuss peak datesAmount of related topics
New airline regulations released2023-11-05128,000
Double Eleven Suitcase Promotion2023-11-0895,000
Baggage disputes on international flights2023-11-10152,000

2. Mainstream airlines’ boarding box size requirements

The following are the latest cabin size standards announced by the five major domestic airlines (unit: centimeters):

airlineSum of length + width + heightUnilateral maximum limitweight limit
Air China≤115cm≤55×40×20≤8kg
China Southern Airlines≤115cm≤55×40×20≤7kg
China Eastern Airlines≤115cm≤56×45×25≤10kg
Hainan Airlines≤115cm≤55×40×20≤7kg
Shenzhen Airlines≤115cm≤55×40×20≤5kg

3. Conversion table between inches and centimeters

Common cabin suitcase sizes on the market are mostly expressed in inches. The following is the conversion data for popular sizes:

inchesCentimeters (approx.)Applicable scenarios
16 inches40×30×15Short business trip
18 inches45×35×202-3 days trip
20 inches50×38×23Mainstream carry-on suitcase
22 inches56×40×25Some airlines require checked baggage

4. Ranking of popular boarding bags for Double Eleven 2023

According to e-commerce platform sales data, the following five carry-on suitcases are the most popular among consumers:

Brand modelSizeMaterialprice rangePositive rating
RIMOWA Cabin S20 inchespolycarbonate4000-5000 yuan98%
Samsonite Inova20 inchesABS+PC1500-2000 yuan97%
Diplomat TC-903218 inchesPC material600-800 yuan96%
Xiaomi 90 points20 inchesGerman Bayer PC400-500 yuan95%
Meilv B7620 inchesABS+PC500-600 yuan94%

5. Purchase suggestions and precautions

1.Preference is given to 20 inches and below: This is the safe size for most airlines to avoid being asked to check it in when boarding.

2.Be aware of international flight differences: Some foreign low-cost airlines (such as Ryanair) require stricter dimensions (usually ≤55×40×20cm).

3.Soft case and hard case selection: Soft cases are easier to fit within size restrictions, while hard cases are more protective but may take up more space.

4.weight control: High-quality materials (such as polycarbonate) can reduce weight while maintaining strength.

5.Extended functions: When choosing a box with an expansion layer, it must still meet aviation standards after expansion.

6. Expert opinions

Travel guru @飞鱼 suggested in a recent live broadcast: "When purchasing a cabin suitcase, it is best to choose a size that is 5% smaller than the airline standard, because the actual measurement includes protruding parts such as wheels and handles. The recently popular 20-inch cabin suitcase actually has a 90% probability of meeting the requirements, but be sure to check the specific parameters before purchasing."

Through the above structured data and analysis, I believe you have a comprehensive understanding of the question "How many inches is the check-in suitcase?" Before traveling, it is recommended to reconfirm the specific requirements of the airline you are traveling on. I wish you a happy journey!

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