Type XXI submarine

Type XXI submarine - 1944 class of German submarines. Article “Type XXI submarine” in English Wikipedia has 75.2 points for quality (as of July 1, 2025). The article contains 51 references and 18 sections.

This article has the best quality in Polish Wikipedia. However, this article is the most popular in English version.

In June 2025 the article “Type XXI submarine” was edited by 3 authors in English Wikipedia and written by 6 authors in all languages.

Since the creation of article “Type XXI submarine”, its content was written by 188 registered users of English Wikipedia and edited by 1130 registered Wikipedia users in all languages.

The article is cited 436 times in English Wikipedia and cited 3461 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #12581 in January 2020
• Global: #4783 in April 2010

The highest popularity rank from 2008:

• Local (English): #12136 in April 2018
• Global: #7290 in April 2018

There are 25 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	Polish (pl) Okręty podwodne typu XXI		97.8716
2	German (de) U-Boot-Klasse XXI		86.6268
3	English (en) Type XXI submarine		75.2253
4	Indonesian (id) Kapal selam tipe XXI		56.9519
5	Chinese (zh) XXI級潛艇		40.1203
6	Russian (ru) Подводные лодки типа XXI		38.3042
7	Catalan (ca) Submarins del tipus XXI		34.8691
8	Italian (it) U-Boot Tipo XXI		34.7074
9	Czech (cs) Typ XXI		34.2733
10	Spanish (es) Tipo XXI		32.7656

More...

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

The most popular language versions of the article "Type XXI submarine" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Type XXI submarine		3 631 583
2	German (de) U-Boot-Klasse XXI		2 865 908
3	Japanese (ja) UボートXXI型		684 383
4	Russian (ru) Подводные лодки типа XXI		503 286
5	Polish (pl) Okręty podwodne typu XXI		428 335
6	Italian (it) U-Boot Tipo XXI		393 139
7	Spanish (es) Tipo XXI		375 619
8	French (fr) Unterseeboot type XXI		365 782
9	Chinese (zh) XXI級潛艇		132 678
10	Dutch (nl) Type XXI U-boot		100 762

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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 "Type XXI submarine" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Type XXI submarine		16 618
2	German (de) U-Boot-Klasse XXI		12 945
3	French (fr) Unterseeboot type XXI		2 767
4	Japanese (ja) UボートXXI型		2 290
5	Russian (ru) Подводные лодки типа XXI		1 981
6	Italian (it) U-Boot Tipo XXI		1 241
7	Polish (pl) Okręty podwodne typu XXI		1 117
8	Spanish (es) Tipo XXI		888
9	Chinese (zh) XXI級潛艇		780
10	Czech (cs) Typ XXI		262

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

Language versions of the article "Type XXI submarine" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	German (de) U-Boot-Klasse XXI		329
2	English (en) Type XXI submarine		188
3	French (fr) Unterseeboot type XXI		76
4	Polish (pl) Okręty podwodne typu XXI		75
5	Italian (it) U-Boot Tipo XXI		72
6	Spanish (es) Tipo XXI		65
7	Russian (ru) Подводные лодки типа XXI		42
8	Hungarian (hu) XXI típusú német tengeralattjáró		38
9	Dutch (nl) Type XXI U-boot		36
10	Japanese (ja) UボートXXI型		31

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 "Type XXI submarine" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	English (en) Type XXI submarine		3
2	German (de) U-Boot-Klasse XXI		2
3	Dutch (nl) Type XXI U-boot		1
4	Arabic (ar) غواصة الفئة الواحدة والعشرون		0
5	Catalan (ca) Submarins del tipus XXI		0
6	Czech (cs) Typ XXI		0
7	Esperanto (eo) Submarŝipo tipo XXI		0
8	Spanish (es) Tipo XXI		0
9	Finnish (fi) Tyyppi XXI		0
10	French (fr) Unterseeboot type XXI		0

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

Language versions of the article "Type XXI submarine" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	French (fr) Unterseeboot type XXI		1 180
2	English (en) Type XXI submarine		436
3	Ukrainian (uk) Підводні човни типу XXI		292
4	Polish (pl) Okręty podwodne typu XXI		237
5	German (de) U-Boot-Klasse XXI		227
6	Slovenian (sl) Razred podmornic XXI		178
7	Italian (it) U-Boot Tipo XXI		152
8	Arabic (ar) غواصة الفئة الواحدة والعشرون		132
9	Japanese (ja) UボートXXI型		119
10	Chinese (zh) XXI級潛艇		74

More...

#	Language	Value
ar	Arabic غواصة الفئة الواحدة والعشرون
ca	Catalan Submarins del tipus XXI
cs	Czech Typ XXI
de	German U-Boot-Klasse XXI
en	English Type XXI submarine
eo	Esperanto Submarŝipo tipo XXI
es	Spanish Tipo XXI
fi	Finnish Tyyppi XXI
fr	French Unterseeboot type XXI
hr	Croatian Podmornica tip XXI
hu	Hungarian XXI típusú német tengeralattjáró
id	Indonesian Kapal selam tipe XXI
it	Italian U-Boot Tipo XXI
ja	Japanese UボートXXI型
ka	Georgian XXI ტიპის გერმანული წყალქვეშა ნავი
nl	Dutch Type XXI U-boot
pl	Polish Okręty podwodne typu XXI
pt	Portuguese Submarino alemão Tipo XXI
ru	Russian Подводные лодки типа XXI
sl	Slovenian Razred podmornic XXI
sv	Swedish Ubåtsklass Typ XXI
tr	Turkish Uboot Type XXI
uk	Ukrainian Підводні човни типу XXI
vi	Vietnamese Type XXI (lớp tàu ngầm)
zh	Chinese XXI級潛艇

Best Rank

English: #12136 04.2018

Global: #7290 04.2018

Best Rank

English: #12581 01.2020

Global: #4783 04.2010

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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