Classe I-400

I-400-class submarine - 1st-class Japanese submarine type. Article “Classe I-400” in Italian Wikipedia has 25.3 points for quality (as of July 1, 2025). The article contains 3 references and 8 sections.

This article has the best quality in English Wikipedia. Also, this article is the most popular in that (Italian) language version.

Since the creation of article “Classe I-400”, its content was written by 41 registered users of Italian Wikipedia and edited by 664 registered Wikipedia users in all languages.

The article is cited 87 times in Italian Wikipedia and cited 1134 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Italian): #17178 in September 2011
• Global: #3087 in December 2013

The highest popularity rank from 2008:

• Local (Italian): #35416 in December 2013
• Global: #1046 in December 2013

There are 19 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	English (en) I-400-class submarine		70.542
2	French (fr) Classe I-400		46.9691
3	Estonian (et) I-400-klassi allveelaevad		42.8927
4	Japanese (ja) 伊四百型潜水艦		39.8247
5	Chinese (zh) 伊四百型潛艦		37.7888
6	Polish (pl) Okręty podwodne typu I-400		29.1812
7	Indonesian (id) Kapal selam kelas I-400		26.8471
8	Italian (it) Classe I-400		25.25
9	Swedish (sv) I-400-klass		24.2314
10	German (de) I-400-Klasse		23.5065

More...

The following table shows the most popular language versions of the article.

The most popular language versions of the article "Classe I-400" in all the time

#	Language	Popularity award	Relative popularity
1	Japanese (ja) 伊四百型潜水艦		3 485 551
2	English (en) I-400-class submarine		2 794 348
3	German (de) I-400-Klasse		589 299
4	Spanish (es) Clase I-400		191 323
5	Russian (ru) Подводные лодки типа I-400		179 487
6	Chinese (zh) 伊四百型潛艦		163 714
7	Polish (pl) Okręty podwodne typu I-400		101 487
8	Italian (it) Classe I-400		86 596
9	French (fr) Classe I-400		81 535
10	Vietnamese (vi) Tàu ngầm lớp I-400		37 018

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The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "Classe I-400" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) I-400-class submarine		10 015
2	Japanese (ja) 伊四百型潜水艦		6 140
3	German (de) I-400-Klasse		1 492
4	Chinese (zh) 伊四百型潛艦		971
5	Russian (ru) Подводные лодки типа I-400		584
6	French (fr) Classe I-400		531
7	Spanish (es) Clase I-400		327
8	Italian (it) Classe I-400		287
9	Polish (pl) Okręty podwodne typu I-400		208
10	Portuguese (pt) Classe I-400		88

More...

The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "Classe I-400" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) I-400-class submarine		195
2	Japanese (ja) 伊四百型潜水艦		122
3	German (de) I-400-Klasse		91
4	Italian (it) Classe I-400		41
5	French (fr) Classe I-400		29
6	Polish (pl) Okręty podwodne typu I-400		29
7	Vietnamese (vi) Tàu ngầm lớp I-400		27
8	Chinese (zh) 伊四百型潛艦		27
9	Spanish (es) Clase I-400		22
10	Portuguese (pt) Classe I-400		20

More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "Classe I-400" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	English (en) I-400-class submarine		1
2	German (de) I-400-Klasse		0
3	Spanish (es) Clase I-400		0
4	Estonian (et) I-400-klassi allveelaevad		0
5	Persian (fa) زیردریایی کلاس آی-۴۰۰		0
6	French (fr) Classe I-400		0
7	Indonesian (id) Kapal selam kelas I-400		0
8	Italian (it) Classe I-400		0
9	Japanese (ja) 伊四百型潜水艦		0
10	Korean (ko) 이400형 잠수함		0

More...

The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "Classe I-400" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) I-400-class submarine		225
2	Japanese (ja) 伊四百型潜水艦		184
3	Chinese (zh) 伊四百型潛艦		162
4	French (fr) Classe I-400		143
5	Vietnamese (vi) Tàu ngầm lớp I-400		89
6	Italian (it) Classe I-400		87
7	Polish (pl) Okręty podwodne typu I-400		84
8	Russian (ru) Подводные лодки типа I-400		35
9	German (de) I-400-Klasse		29
10	Spanish (es) Clase I-400		28

More...

#	Language	Value
de	German I-400-Klasse
en	English I-400-class submarine
es	Spanish Clase I-400
et	Estonian I-400-klassi allveelaevad
fa	Persian زیردریایی کلاس آی-۴۰۰
fr	French Classe I-400
id	Indonesian Kapal selam kelas I-400
it	Italian Classe I-400
ja	Japanese 伊四百型潜水艦
ko	Korean 이400형 잠수함
nl	Dutch Sen Toku-klasse
pl	Polish Okręty podwodne typu I-400
pt	Portuguese Classe I-400
ro	Romanian I 400
ru	Russian Подводные лодки типа I-400
sv	Swedish I-400-klass
th	Thai เรือดำน้ำชั้นอิ-400
vi	Vietnamese Tàu ngầm lớp I-400
zh	Chinese 伊四百型潛艦

Best Rank

Italian: #35416 12.2013

Global: #1046 12.2013

Best Rank

Italian: #17178 09.2011

Global: #3087 12.2013

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The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information