Ro-21

uk

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Ro-21

Quality:

Article “Ro-21” in Ukrainian Wikipedia has 6.9 points for quality (as of July 1, 2025).

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

Since the creation of article “Ro-21”, its content was written by 3 registered users of Ukrainian Wikipedia and edited by 11 registered Wikipedia users in all languages.

The article is cited 241 times in Ukrainian Wikipedia and cited 410 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (Ukrainian): #52422 in April 2024
  • Global: #458273 in February 2017

The highest popularity rank from 2008:

  • Local (Ukrainian): #458755 in September 2023
  • Global: #4060336 in January 2017

There are 4 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.

Languages with the highest quality

#LanguageQuality gradeQuality score
1Japanese (ja)
呂号第二十一潜水艦
26.4603
2English (en)
Japanese submarine Ro-21
25.1055
3Finnish (fi)
Ro-21 (1920)
13.5343
4Ukrainian (uk)
Ro-21
6.9035
More...

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

Most popular in all the time

The most popular language versions of the article "Ro-21" in all the time
#LanguagePopularity awardRelative popularity
1Japanese (ja)
呂号第二十一潜水艦
1 286
2English (en)
Japanese submarine Ro-21
1 039
3Finnish (fi)
Ro-21 (1920)
254
4Ukrainian (uk)
Ro-21
64
More...

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

Most popular in June 2025

The most popular language versions of the article "Ro-21" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Japanese submarine Ro-21
29
2Japanese (ja)
呂号第二十一潜水艦
9
3Ukrainian (uk)
Ro-21
2
4Finnish (fi)
Ro-21 (1920)
1
More...

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

The highest AI

Language versions of the article "Ro-21" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1Japanese (ja)
呂号第二十一潜水艦
4
2English (en)
Japanese submarine Ro-21
3
3Ukrainian (uk)
Ro-21
3
4Finnish (fi)
Ro-21 (1920)
1
More...

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

The highest AI in June 2025

Language versions of the article "Ro-21" with the highest AI in June 2025
#LanguageAI awardRelative AI
1English (en)
Japanese submarine Ro-21
0
2Finnish (fi)
Ro-21 (1920)
0
3Japanese (ja)
呂号第二十一潜水艦
0
4Ukrainian (uk)
Ro-21
0
More...

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

The highest CI

Language versions of the article "Ro-21" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1Ukrainian (uk)
Ro-21
241
2Japanese (ja)
呂号第二十一潜水艦
90
3English (en)
Japanese submarine Ro-21
78
4Finnish (fi)
Ro-21 (1920)
1
More...

Scores

Estimated value for Wikipedia:
Ukrainian:
Global:
Popularity in June 2025:
Ukrainian:
Global:
Popularity in all years:
Ukrainian:
Global:
Authors in June 2025:
Ukrainian:
Global:
Registered authors in all years:
Ukrainian:
Global:
Citations:
Ukrainian:
Global:

Quality measures

Interwikis

#LanguageValue
enEnglish
Japanese submarine Ro-21
fiFinnish
Ro-21 (1920)
jaJapanese
呂号第二十一潜水艦
ukUkrainian
Ro-21

Popularity rank trends

Best Rank Ukrainian:
#458755
09.2023
Global:
#4060336
01.2017

AI rank trends

Best Rank Ukrainian:
#52422
04.2024
Global:
#458273
02.2017

Languages comparison

Important global interconnections (July 2024 – June 2025)

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

uk: Ro-21

News from 21 February 2026

On 21 February 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: Jeffrey Epstein, Alysa Liu, Eric Dane, 2026 Winter Olympics, Rebecca Gayheart, Johannes Høsflot Klæbo, Wuthering Heights, amyotrophic lateral sclerosis, Andrew Mountbatten-Windsor, John F. Kennedy Jr..

In Ukrainian Wikipedia the most popular articles on that day were: Горила, Петровський Олександр Володимирович, Ерік Дейн, Буремний перевал (фільм, 2026), Кемпе Лаврентій Гнатович, Буремний перевал, Таблиця медалей зимових Олімпійських ігор 2026, Аліса Лю, Смілянський Ігор Юхимович, Джеффрі Епштайн.

About WikiRank

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