Rayleigh (unit)

Rayleigh - unit of photon flux. Article “Rayleigh (unit)” in English Wikipedia has 14.1 points for quality (as of July 1, 2026). The article contains 4 references and 1 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 0.74 points.

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

Since the creation of article “Rayleigh (unit)”, its content was written by 35 registered users of English Wikipedia and edited by 85 registered Wikipedia users in all languages.

The article is cited 9 times in English Wikipedia and cited 83 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #28757 in September 2024
• Global: #121433 in September 2024

The highest popularity rank from 2008:

• Local (English): #717043 in April 2008
• Global: #699144 in August 2008

There are 8 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, 2026 (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	Arabic (ar) رايلي (وحدة)		20.961
2	Swedish (sv) Rayleigh (enhet)		14.1592
3	English (en) Rayleigh (unit)		14.0851
4	French (fr) Rayleigh (unité)		10.8889
5	Russian (ru) Рэлей (единица измерения)		10.3002
6	Norwegian (Nynorsk) (nn) Rayleigh		1.8296
7	German (de) Rayleigh (Einheit)		1.3366
8	Japanese (ja) レイリー (単位)		0.8529

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

The most popular language versions of the article "Rayleigh (unit)" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Rayleigh (unit)		58 374
2	Japanese (ja) レイリー (単位)		38 703
3	French (fr) Rayleigh (unité)		16 236
4	Russian (ru) Рэлей (единица измерения)		6 372
5	German (de) Rayleigh (Einheit)		4 381
6	Norwegian (Nynorsk) (nn) Rayleigh		940
7	Arabic (ar) رايلي (وحدة)		122
8	Swedish (sv) Rayleigh (enhet)		90

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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 "Rayleigh (unit)" in June 2026

#	Language	Popularity award	Relative popularity
1	English (en) Rayleigh (unit)		238
2	Japanese (ja) レイリー (単位)		41
3	French (fr) Rayleigh (unité)		25
4	Russian (ru) Рэлей (единица измерения)		21
5	German (de) Rayleigh (Einheit)		17
6	Norwegian (Nynorsk) (nn) Rayleigh		1
7	Swedish (sv) Rayleigh (enhet)		1
8	Arabic (ar) رايلي (وحدة)		0

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

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

#	Language	AI award	Relative AI
1	English (en) Rayleigh (unit)		35
2	French (fr) Rayleigh (unité)		19
3	Russian (ru) Рэлей (единица измерения)		13
4	Japanese (ja) レイリー (単位)		8
5	German (de) Rayleigh (Einheit)		5
6	Norwegian (Nynorsk) (nn) Rayleigh		3
7	Arabic (ar) رايلي (وحدة)		1
8	Swedish (sv) Rayleigh (enhet)		1

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

Language versions of the article "Rayleigh (unit)" with the highest AI in June 2026

#	Language	AI award	Relative AI
1	Arabic (ar) رايلي (وحدة)		1
2	German (de) Rayleigh (Einheit)		0
3	English (en) Rayleigh (unit)		0
4	French (fr) Rayleigh (unité)		0
5	Japanese (ja) レイリー (単位)		0
6	Norwegian (Nynorsk) (nn) Rayleigh		0
7	Russian (ru) Рэлей (единица измерения)		0
8	Swedish (sv) Rayleigh (enhet)		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 "Rayleigh (unit)" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	French (fr) Rayleigh (unité)		56
2	English (en) Rayleigh (unit)		9
3	German (de) Rayleigh (Einheit)		5
4	Arabic (ar) رايلي (وحدة)		4
5	Japanese (ja) レイリー (単位)		4
6	Swedish (sv) Rayleigh (enhet)		3
7	Norwegian (Nynorsk) (nn) Rayleigh		1
8	Russian (ru) Рэлей (единица измерения)		1

More...

#	Language	Value
ar	Arabic رايلي (وحدة)
de	German Rayleigh (Einheit)
en	English Rayleigh (unit)
fr	French Rayleigh (unité)
ja	Japanese レイリー (単位)
nn	Norwegian (Nynorsk) Rayleigh
ru	Russian Рэлей (единица измерения)
sv	Swedish Rayleigh (enhet)

Best Rank

English: #717043 04.2008

Global: #699144 08.2008

Best Rank

English: #28757 09.2024

Global: #121433 09.2024

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In English Wikipedia the most popular articles on that day were: 2026 FIFA World Cup, Harry Kane, Julián Quiñones, List of FIFA World Cup top goalscorers, Kylian Mbappé, Democratic Republic of the Congo, Erling Haaland, DR Congo national football team, Melat Kiros, FIFA World Cup.

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 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information