FR4

FR-4 - fiberglass reinforced epoxy laminate that is Flame Retardant (self extinguishing). Article “FR4” in Japanese Wikipedia has 19.6 points for quality (as of July 1, 2025). The article contains 2 references and 2 sections.

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

Since the creation of article “FR4”, its content was written by 5 registered users of Japanese Wikipedia and edited by 153 registered Wikipedia users in all languages.

The article is cited 10 times in Japanese Wikipedia and cited 97 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Japanese): #47909 in October 2010
• Global: #34882 in October 2010

The highest popularity rank from 2008:

• Local (Japanese): #56284 in March 2015
• Global: #72313 in April 2015

There are 10 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	German (de) FR-4		23.1636
2	Swedish (sv) FR-4		22.5697
3	Chinese (zh) FR-4		21.7046
4	English (en) FR-4		21.1945
5	Catalan (ca) FR-4		20.2601
6	Japanese (ja) FR4		19.5911
7	French (fr) FR-4		12.9596
8	Polish (pl) FR-4		3.076
9	Italian (it) FR4 (materiale)		2.0865
10	Dutch (nl) FR-4		0.8737

More...

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

The most popular language versions of the article "FR4" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) FR-4		2 244 966
2	Japanese (ja) FR4		257 476
3	German (de) FR-4		192 599
4	French (fr) FR-4		107 840
5	Polish (pl) FR-4		66 110
6	Italian (it) FR4 (materiale)		39 676
7	Chinese (zh) FR-4		20 064
8	Dutch (nl) FR-4		14 199
9	Swedish (sv) FR-4		7 861
10	Catalan (ca) FR-4		1 377

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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 "FR4" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) FR-4		4 847
2	German (de) FR-4		529
3	Chinese (zh) FR-4		512
4	Japanese (ja) FR4		305
5	French (fr) FR-4		296
6	Italian (it) FR4 (materiale)		177
7	Polish (pl) FR-4		110
8	Dutch (nl) FR-4		27
9	Swedish (sv) FR-4		23
10	Catalan (ca) FR-4		15

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

Language versions of the article "FR4" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) FR-4		83
2	French (fr) FR-4		19
3	Polish (pl) FR-4		11
4	German (de) FR-4		9
5	Dutch (nl) FR-4		8
6	Italian (it) FR4 (materiale)		6
7	Swedish (sv) FR-4		6
8	Japanese (ja) FR4		5
9	Catalan (ca) FR-4		3
10	Chinese (zh) FR-4		3

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 "FR4" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Catalan (ca) FR-4		0
2	German (de) FR-4		0
3	English (en) FR-4		0
4	French (fr) FR-4		0
5	Italian (it) FR4 (materiale)		0
6	Japanese (ja) FR4		0
7	Dutch (nl) FR-4		0
8	Polish (pl) FR-4		0
9	Swedish (sv) FR-4		0
10	Chinese (zh) FR-4		0

More...

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

Language versions of the article "FR4" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) FR-4		41
2	French (fr) FR-4		12
3	German (de) FR-4		10
4	Japanese (ja) FR4		10
5	Catalan (ca) FR-4		8
6	Polish (pl) FR-4		7
7	Italian (it) FR4 (materiale)		5
8	Chinese (zh) FR-4		3
9	Dutch (nl) FR-4		1
10	Swedish (sv) FR-4		0

More...

#	Language	Value
ca	Catalan FR-4
de	German FR-4
en	English FR-4
fr	French FR-4
it	Italian FR4 (materiale)
ja	Japanese FR4
nl	Dutch FR-4
pl	Polish FR-4
sv	Swedish FR-4
zh	Chinese FR-4

Best Rank

Japanese: #56284 03.2015

Global: #72313 04.2015

Best Rank

Japanese: #47909 10.2010

Global: #34882 10.2010

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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