Fermi problem

en

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Fermi problem

Quality:

Fermi problem - estimation problem designed to teach dimensional analysis or approximation. Article “Fermi problem” in English Wikipedia has 19.7 points for quality (as of July 1, 2026). The article contains 8 references and 8 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 3.48 points.

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

In June 2026 the article “Fermi problem” was edited by 2 authors in English Wikipedia and written by 4 authors in all languages.

Since the creation of article “Fermi problem”, its content was written by 138 registered users of English Wikipedia and edited by 365 registered Wikipedia users in all languages.

The article is cited 74 times in English Wikipedia and cited 204 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #1158 in December 2003
  • Global: #6814 in December 2003

The highest popularity rank from 2008:

  • Local (English): #13370 in February 2014
  • Global: #21327 in October 2014

There are 18 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.

Languages with the highest quality

#LanguageQuality gradeQuality score
1Catalan (ca)
Problemes de Fermi
22.3981
2Spanish (es)
Problema de Fermi
20.6749
3English (en)
Fermi problem
19.7153
4Portuguese (pt)
Problema de Fermi
15.843
5Turkish (tr)
Fermi problemi
15.6489
6Chinese (zh)
费米问题
14.9173
7Thai (th)
ข้อปัญหาแฟร์มี
13.5553
8Hebrew (he)
בעיית פרמי
12.7042
9Arabic (ar)
مشكلة فيرمي
11.7215
10Japanese (ja)
フェルミ推定
11.1872
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 "Fermi problem" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Fermi problem
2 431 706
2Japanese (ja)
フェルミ推定
1 582 596
3German (de)
Fermi-Problem
353 816
4Spanish (es)
Problema de Fermi
206 016
5Chinese (zh)
费米问题
162 096
6Italian (it)
Problema di Fermi
99 645
7French (fr)
Estimation de Fermi
78 613
8Korean (ko)
페르미 문제
78 300
9Portuguese (pt)
Problema de Fermi
31 320
10Hebrew (he)
בעיית פרמי
21 314
More...

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

Most popular in June 2026

The most popular language versions of the article "Fermi problem" in June 2026
#LanguagePopularity awardRelative popularity
1English (en)
Fermi problem
6 069
2Japanese (ja)
フェルミ推定
3 060
3German (de)
Fermi-Problem
771
4Chinese (zh)
费米问题
469
5Spanish (es)
Problema de Fermi
357
6Russian (ru)
Задачи Ферми
300
7Italian (it)
Problema di Fermi
299
8French (fr)
Estimation de Fermi
293
9Portuguese (pt)
Problema de Fermi
92
10Korean (ko)
페르미 문제
60
More...

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

The highest AI

Language versions of the article "Fermi problem" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Fermi problem
138
2German (de)
Fermi-Problem
41
3Italian (it)
Problema di Fermi
27
4French (fr)
Estimation de Fermi
23
5Japanese (ja)
フェルミ推定
20
6Turkish (tr)
Fermi problemi
20
7Spanish (es)
Problema de Fermi
17
8Hebrew (he)
בעיית פרמי
15
9Chinese (zh)
费米问题
14
10Hindi (hi)
फर्मी का आकलन
9
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 2026

Language versions of the article "Fermi problem" with the highest AI in June 2026
#LanguageAI awardRelative AI
1English (en)
Fermi problem
2
2Japanese (ja)
フェルミ推定
1
3Chinese (zh)
费米问题
1
4Arabic (ar)
مشكلة فيرمي
0
5Catalan (ca)
Problemes de Fermi
0
6German (de)
Fermi-Problem
0
7Spanish (es)
Problema de Fermi
0
8Persian (fa)
مسئله فرمی
0
9French (fr)
Estimation de Fermi
0
10Hebrew (he)
בעיית פרמי
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 "Fermi problem" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Fermi problem
74
2Korean (ko)
페르미 문제
23
3Chinese (zh)
费米问题
18
4Japanese (ja)
フェルミ推定
14
5Arabic (ar)
مشكلة فيرمي
10
6Spanish (es)
Problema de Fermi
10
7French (fr)
Estimation de Fermi
10
8Turkish (tr)
Fermi problemi
9
9Persian (fa)
مسئله فرمی
8
10Italian (it)
Problema di Fermi
6
More...

Scores

Estimated value for Wikipedia:
English:
Global:
Popularity in June 2026:
English:
Global:
Popularity in all years:
English:
Global:
Authors in June 2026:
English:
Global:
Registered authors in all years:
English:
Global:
Citations:
English:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
مشكلة فيرمي
caCatalan
Problemes de Fermi
deGerman
Fermi-Problem
enEnglish
Fermi problem
esSpanish
Problema de Fermi
faPersian
مسئله فرمی
frFrench
Estimation de Fermi
heHebrew
בעיית פרמי
hiHindi
फर्मी का आकलन
itItalian
Problema di Fermi
jaJapanese
フェルミ推定
koKorean
페르미 문제
ptPortuguese
Problema de Fermi
ruRussian
Задачи Ферми
slSlovenian
Fermijev problem
thThai
ข้อปัญหาแฟร์มี
trTurkish
Fermi problemi
zhChinese
费米问题

Popularity rank trends

Best Rank English:
#13370
02.2014
Global:
#21327
10.2014

AI rank trends

Best Rank English:
#1158
12.2003
Global:
#6814
12.2003

Local AI rank history

Global AI rank history

Languages comparison

Important global interconnections (July 2025 – June 2026)

Wikipedia readers most often find their way to information on Fermi problem from Wikipedia articles about Fermi paradox, Enrico Fermi, Spherical cow, Back-of-the-envelope calculation and Drake equation. Whereas reading the article about Fermi problem people most often go to Wikipedia articles on Enrico Fermi, Drake equation, Fermi paradox, Back-of-the-envelope calculation and Spherical cow.

Cumulative results of quality and popularity of the Wikipedia article

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

News from 1 July 2026

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.

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 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