Volumetric efficiency

Volumetric efficiency - ratio of the mass density of a mixture drawn into a cylinder at atmospheric pressure to the mass density of the same volume of air in the intake manifold. Article “Volumetric efficiency” in English Wikipedia has 23.6 points for quality (as of July 1, 2025). The article contains 7 references and 6 sections.

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

Since the creation of article “Volumetric efficiency”, its content was written by 51 registered users of English Wikipedia and edited by 146 registered Wikipedia users in all languages.

The article is cited 114 times in English Wikipedia and cited 264 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #24824 in July 2004
• Global: #63294 in July 2004

The highest popularity rank from 2008:

• Local (English): #130242 in April 2017
• Global: #169581 in April 2015

There are 9 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) Volumetric efficiency		23.6476
2	German (de) Liefergrad		19.9764
3	Italian (it) Coefficiente di riempimento		14.8315
4	Arabic (ar) كفاءة حجمية		12.4906
5	Chinese (zh) 容積效率		9.0314
6	Japanese (ja) 体積効率		7.574
7	Russian (ru) Объёмный КПД двигателя внутреннего сгорания		3.9594
8	Persian (fa) بازده حجمی		2.9182
9	Slovak (sk) Objemová účinnosť		2.158

More...

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

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

#	Language	Popularity award	Relative popularity
1	English (en) Volumetric efficiency		953 576
2	German (de) Liefergrad		178 385
3	Japanese (ja) 体積効率		120 861
4	Russian (ru) Объёмный КПД двигателя внутреннего сгорания		92 677
5	Italian (it) Coefficiente di riempimento		61 643
6	Chinese (zh) 容積效率		38 310
7	Arabic (ar) كفاءة حجمية		10 671
8	Persian (fa) بازده حجمی		6 952
9	Slovak (sk) Objemová účinnosť		6 112

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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 "Volumetric efficiency" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Volumetric efficiency		1 687
2	German (de) Liefergrad		192
3	Russian (ru) Объёмный КПД двигателя внутреннего сгорания		190
4	Japanese (ja) 体積効率		175
5	Italian (it) Coefficiente di riempimento		143
6	Chinese (zh) 容積效率		73
7	Slovak (sk) Objemová účinnosť		23
8	Arabic (ar) كفاءة حجمية		12
9	Persian (fa) بازده حجمی		10

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

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

#	Language	AI award	Relative AI
1	English (en) Volumetric efficiency		51
2	German (de) Liefergrad		39
3	Italian (it) Coefficiente di riempimento		17
4	Japanese (ja) 体積効率		9
5	Russian (ru) Объёмный КПД двигателя внутреннего сгорания		9
6	Arabic (ar) كفاءة حجمية		8
7	Chinese (zh) 容積效率		7
8	Persian (fa) بازده حجمی		5
9	Slovak (sk) Objemová účinnosť		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 "Volumetric efficiency" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Arabic (ar) كفاءة حجمية		0
2	German (de) Liefergrad		0
3	English (en) Volumetric efficiency		0
4	Persian (fa) بازده حجمی		0
5	Italian (it) Coefficiente di riempimento		0
6	Japanese (ja) 体積効率		0
7	Russian (ru) Объёмный КПД двигателя внутреннего сгорания		0
8	Slovak (sk) Objemová účinnosť		0
9	Chinese (zh) 容積效率		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 "Volumetric efficiency" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Volumetric efficiency		114
2	Persian (fa) بازده حجمی		40
3	German (de) Liefergrad		33
4	Chinese (zh) 容積效率		21
5	Japanese (ja) 体積効率		16
6	Italian (it) Coefficiente di riempimento		11
7	Arabic (ar) كفاءة حجمية		10
8	Slovak (sk) Objemová účinnosť		10
9	Russian (ru) Объёмный КПД двигателя внутреннего сгорания		9

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#	Language	Value
ar	Arabic كفاءة حجمية
de	German Liefergrad
en	English Volumetric efficiency
fa	Persian بازده حجمی
it	Italian Coefficiente di riempimento
ja	Japanese 体積効率
ru	Russian Объёмный КПД двигателя внутреннего сгорания
sk	Slovak Objemová účinnosť
zh	Chinese 容積效率

Best Rank

English: #130242 04.2017

Global: #169581 04.2015

Best Rank

English: #24824 07.2004

Global: #63294 07.2004

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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