Wikipedia article depth

The depth or editing depth of Wikipedia is one of several possible rough indicators of the encyclopedia's collaborative quality, showing how frequently its articles are updated.

It does not refer to academic quality, which cannot be computed, but to Wikipedian quality, i.e. the depth of collaborativeness—a descriptor that is highly relevant for a Wikipedia.

Definition

The formula assumes that a relatively high number of page edits and the presence of support pages means articles have been updated. And the latter support pages are assumed to be a more important factor.

In the list of Wikipedias, depth is currently defined as:

${\text{Depth}}={\frac {\text{Edits}}{\text{Articles}}}\cdot {\frac {\text{NonArticles}}{\text{Articles}}}\cdot \left(1-{\frac {\text{Articles}}{\text{Total}}}\right)$

The depth can be simplified to the equivalent formula below:

${\text{Depth}}={\frac {\text{Edits}}{\text{Total}}}\cdot \left({\frac {\text{NonArticles}}{\text{Articles}}}\right)^{2}$

NonArticles are user pages, redirects, images, "project" pages, categories, templates, and all talk pages. Total is simply NonArticles + Articles.

The English Wikipedia has the largest depth of 1061 = 19.07 × 55.63.

Among editions with at least 10,000 articles, the Egyptian Arabic Wikipedia has the smallest depth, at 0.121 = 3.62 × 0.033.

Background

The measurement of depth was introduced after some limitations of the classic measurement of article count were realized. This insight is similar to the various suggestions to redefine the ordering of Wikipedias that appear on the international front page www.wikipedia.org. See Top Ten Wikipedias and Talk:Www.wikipedia.org portal.

Still in early February 2006 the list of Wikipedias only listed the article count. But on February 10, 2006, this changed into a table format that also listed the total edit count, number of users and admins.

The depth column first appeared on November 29, 2006. The initial definition was edits/articles, giving the English Wikipedia a value of 62. This definition changed already the next day to (Edits/Articles) × (Non-Articles/Articles), giving the English Wikipedia a value of 209. The next definition change occurred on October 9, 2007, when the Stub-ratio factor was appended. The stub ratio is (1-(Articles/Total)). The new value for the English Wikipedia was 288. The formula changed again on October 17, October 28, and finally on April 11, 2008.

The discussion of the introduction of the depth parameter is found in Talk:List of Wikipedias/Archive 4. Early on, there were discussions of whether depth implies quality. The changes in October 2007 were discussed in Talk:List of Wikipedias/Archive 5#Depth 2.0.

10,000+ articles

The table shows the list of Wikipedias with over 10,000 articles. It can be sorted by Depth.
Data on this page is automatically updated every day ().

N.B.: Default sorting is by language code, but it is possible to sort the table by any column.

No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 No.

Language Language (local) Wiki Depth Articles Edits Total Pages Acehnese Acehnese ace 2.45 12,231 127,130 19,774 Afrikaans Afrikaans af 45.86 97,642 2,380,489 351,864 Alemannic Alemannisch als 30.03 27,777 989,863 67,534 Amharic አማርኛ am 33.84 14,915 362,463 45,732 Aragonese Aragonés an 58.05 39,852 1,721,097 120,039 Arabic العربية ar 224.45 1,111,023 53,319,142 7,248,002 Egyptian Arabic مصرى arz 0.12 1,229,333 5,265,954 1,453,675 Asturian Asturianu ast 7.85 120,978 3,308,994 205,441 Kotava Kotava avk 0.21 13,253 66,245 16,235 Azerbaijani Azərbaycanca az 32.4 180,376 5,883,662 470,862 South Azerbaijani تۆرکجه azb 4.5 240,175 1,459,878 554,773 Bashkir Башҡорт ba 21.46 56,625 1,028,651 160,135 Bavarian Boarisch bar 45.75 31,586 763,815 114,198 Samogitian Žemaitėška bat-smg 5.97 16,881 351,719 28,648 Central Bicolano Bikol bcl 8.17 11,065 203,713 21,286 Belarusian Беларуская be 24.9 203,701 3,824,526 609,414 Belarusian (Taraškievica) Беларуская (тарашкевіца) be-tarask 36.02 74,166 2,208,306 212,116 Bulgarian Български bg 26.94 270,678 10,806,800 602,328 Bengali বাংলা bn 318.78 106,383 5,039,915 916,256 Bishnupriya Manipuri বিষ্ণুপ্রিয়া মণিপুরী bpy 26.5 25,050 837,607 59,386 Breton Brezhoneg br 12.7 69,421 1,895,382 135,600 Bosnian Bosanski bs 91.38 85,589 3,270,416 355,251 Buginese Basa Ugi bug 1.13 14,136 193,436 18,819 Catalan Català ca 34.97 676,164 26,919,496 1,672,890 Chechen Нохчийн ce 6.57 354,138 5,850,446 658,645 Min Dong Mìng-dĕ̤ng-ngṳ̄ cdo 2.83 15,500 87,337 31,041 Cebuano Sinugboanong Binisaya ceb 2 5,700,208 31,043,824 10,350,257 Sorani کوردی ckb 82.9 29,807 773,578 148,857 Czech Čeština cs 45.59 478,741 19,677,946 1,314,013 Chuvash Чăваш cv 6.24 45,783 702,255 85,734 Welsh Cymraeg cy 41.96 132,667 10,909,040 267,153 Danish Dansk da 63.72 266,228 10,681,716 874,185 German Deutsch de 92.83 2,563,867 209,498,548 7,116,732 Zazaki Zazaki diq 2.02 39,948 475,292 60,170 Greek Ελληνικά el 61.56 191,451 8,774,396 576,495 Emilian-Romagnol Emiliàn e rumagnòl eml 11.81 12,691 144,684 33,763 English English en 1060.64 6,282,103 1,013,137,963 53,136,647 Esperanto Esperanto eo 16.07 294,753 7,142,003 651,732 Spanish Español es 211.31 1,673,990 134,307,102 7,376,957 Estonian Eesti et 21.53 218,277 5,868,496 519,716 Basque Euskara eu 12.11 373,280 8,472,486 763,234 Persian فارسی fa 178.16 786,248 31,715,718 4,919,447 Finnish Suomi fi 39.77 507,216 19,654,824 1,343,435 Faroese Føroyskt fo 34.33 13,562 363,968 39,857 French Français fr 240.98 2,318,853 181,444,366 11,303,280 North Frisian Nordfriisk frr 15.45 12,936 201,918 33,710 West Frisian Frysk fy 31.63 45,511 1,033,934 139,532 Irish Gaeilge ga 4.66 54,731 998,122 90,282 Scottish Gaelic Gàidhlig gd 20.14 15,253 558,089 31,523 Galician Galego gl 29.2 172,734 5,735,556 427,592 Gorontalo Hulontalo gor 0.6 11,282 44,479 16,622 Gujarati ગુજરાતી gu 49.86 29,515 757,523 108,321 Hebrew עברית he 258.85 292,778 31,107,913 1,229,096 Hindi हिन्दी hi 194.97 146,977 5,156,963 1,090,858 Croatian Hrvatski hr 22.09 208,355 5,854,829 492,324 Upper Sorbian Hornjoserbsce hsb 25.88 13,742 374,632 35,159 Haitian Krèyol ayisyen ht 0.5 61,691 781,482 75,251 Hungarian Magyar hu 59.35 486,438 23,721,785 1,395,261 Armenian Հայերեն hy 46.57 283,194 7,889,333 955,945 Interlingua Interlingua ia 6.15 23,109 634,457 36,936 Indonesian Bahasa Indonesia id 106.82 568,608 18,226,906 2,921,291 Ilokano Ilokano ilo 60.55 15,390 372,411 65,684 Ido Ido io 5.23 30,133 966,369 45,002 Icelandic Íslenska is 32.19 52,472 1,712,036 136,557 Italian Italiano it 170.61 1,686,546 119,629,015 7,024,789 Japanese 日本語 ja 84.91 1,263,416 82,787,811 3,736,747 Javanese Basa Jawa jv 24.96 63,142 1,552,828 166,400 Georgian ქართული ka 33.83 151,320 4,170,229 435,881 Kazakh Қазақша kk 11.09 228,051 2,862,877 565,711 Kannada ಕನ್ನಡ kn 107.92 26,797 1,027,815 123,161 Korean 한국어 ko 152.43 537,499 29,073,356 2,472,869 Kurdish Kurdî ku 13.5 38,302 852,639 81,925 Kirghiz Кыргызча ky 0.38 80,742 372,268 107,465 Latin Latina la 13.26 135,142 3,606,421 269,728 Luxembourgish Lëtzebuergesch lb 24.13 59,595 2,340,311 128,081 Limburgish Limburgs li 103.78 13,244 447,813 64,414 Lombard Lìgure lij 15.83 10,242 203,850 24,317 Ligurian Lumbaart lmo 18.96 45,965 1,038,749 111,564 Lithuanian Lietuvių lt 25.86 199,452 6,214,897 481,852 Latvian Latviešu lv 72.73 107,137 3,390,008 434,082 Maithili मैथिली mai 16.81 13,662 213,687 36,952 Banyumasan Basa Banyumasan map-bms 10.26 13,380 210,359 29,405 Malagasy Malagasy mg 10.52 93,875 1,009,795 243,369 Meadow Mari Олык Марий (Olyk Marij) mhr 16.43 10,238 181,709 25,911 Minangkabau Bahaso Minangkabau min 1.505 224,413 2,053,625 335,746 Macedonian Македонски mk 99.42 113,868 4,491,393 488,201 Malayalam മലയാളം ml 209.79 72,976 3,486,592 454,672 Mongolian Монгол mn 85.92 20,455 658,193 90,928 Marathi मराठी mr 48.1 72,154 1,890,930 256,447 Hill Mari Кырык Мары (Kyryk Mary) mrj 2.86 10,287 98,418 17,657 Malay Bahasa Melayu ms 16.65 347,754 5,040,715 970,316 Burmese language မြန်မာဘာသာ my 2.86 100,257 651,503 192,308 Mazandarani مَزِروني mzn 7.62 13,293 154,637 29,254 Neapolitan Nnapulitano nap 10.32 14,668 662,422 23,553 Low Saxon Plattdüütsch nds 4.87 82,500 976,066 155,020 Nepali नेपाली ne 45.7 31,794 996,882 99,805 Newari नेवारी new 12.76 72,323 847,457 196,814 Dutch Nederlands nl 16.66 2,051,811 58,549,728 4,329,289 Norwegian (Nynorsk) Nynorsk nn 15.26 158,265 3,299,265 363,445 Norwegian (Bokmål) Norsk (Bokmål) no 44.59 554,787 21,380,391 1,553,296 Navajo Diné bizaad nv 5.69 16,666 267,627 29,965 Occitan Occitan oc 8.78 86,579 2,246,127 153,674 Oriya ଓଡ଼ିଆ or 72.66 15,642 422,078 69,905 Ossetian Иронау os 75.05 13,194 487,386 49,692 Punjabi ਪੰਜਾਬੀ pa 27.92 35,848 561,280 125,373 Polish Polski pl 31.81 1,467,678 62,797,070 3,391,333 Piedmontese Piemontèis pms 2.39 65,808 851,766 100,769 Western Panjabi شاہ مکھی پنجابی pnb 2.5 61,656 581,359 102,574 Pashto پښتو ps 45.39 12,127 265,458 46,217 Portuguese Português pt 174.83 1,065,417 60,731,025 5,179,375 Quechua Runa Simi qu 23.52 22,882 644,285 55,431 Romanian Română ro 121.95 418,789 14,097,411 2,277,794 Russian Русский ru 137.01 1,715,548 113,302,544 6,539,877 Sanskrit संस्कृतम् sa 151.66 11,510 458,621 64,784 Sakha Саха тыла sah 48.26 13,118 365,835 45,121 Sicilian Sicilianu scn 16.6 26,155 730,020 55,545 Scots Scots sco 38.31 40,832 836,025 146,696 Sindhi سنڌي، سندھی ، सिन्ध sd 27.03 14,133 216,697 49,111 Serbo-Croatian Srpskohrvatski / Српскохрватски sh 748.44 454,812 41,031,762 4,638,153 Sinhalese සිංහල si 75.92 17,032 479,570 76,182 Simple English Simple English simple 64.47 185,572 7,451,497 612,892 Slovak Slovenčina sk 21.01 236,524 7,167,077 531,886 Slovenian Slovenščina sl 26.97 172,046 5,481,768 419,061 Albanian Shqip sq 35.84 82,861 2,214,205 249,324 Serbian Српски sr 154.98 645,144 23,715,502 3,903,532 Sundanese Basa Sunda su 2.16 60,723 612,139 96,082 Swedish Svenska sv 10.36 3,232,553 49,081,045 7,224,900 Swahili Kiswahili sw 10.51 61,405 1,156,076 127,540 Silesian Ślůnsko szl 0.27 53,496 335,750 65,734 Tamil தமிழ் ta 33.91 135,934 3,122,189 429,515 Telugu తెలుగు te 98.05 71,000 3,152,615 280,829 Tajik Тоҷикӣ tg 10.43 102,886 1,243,361 252,685 Thai ไทย th 298.95 140,110 9,332,125 886,951 Tagalog Tagalog tl 80.93 55,962 1,850,060 235,638 Turkish Türkçe tr 202.27 398,639 25,248,575 1,990,522 Tatar Татарча tt 1.93 266,637 2,988,966 402,421 Ukrainian Українська uk 49.62 1,087,217 31,199,585 3,738,263 Urdu اردو ur 106.27 162,950 4,534,543 919,293 Uzbek O‘zbek uz 43.12 139,997 2,185,563 635,897 Venetian Vèneto vec 7.15 67,537 1,014,550 132,923 Vietnamese Tiếng Việt vi 682.12 1,262,859 64,707,551 19,254,781 Volapük Volapük vo 13.65 126,476 3,225,983 258,827 Walloon Walon wa 23.45 13,613 376,464 33,182 Waray-Waray Winaray war 3.52 1,265,089 6,230,604 2,879,780 Wu 吴语 wuu 0.48 41,834 285,477 54,523 Mingrelian მარგალური (Margaluri) xmf 5.09 16,017 154,845 32,599 Yiddish ייִדיש yi 45.76 15,153 567,533 43,545 Yoruba Yorùbá yo 5.01 33,346 539,244 57,767 Chinese 中文 zh 201.43 1,190,573 64,895,808 6,564,950 Classical Chinese 古文 / 文言文 zh-classical 218.83 10,676 361,717 89,024 Min Nan Bân-lâm-gú zh-min-nan 6.19 430,755 3,089,819 1,058,157 Cantonese 粵語 zh-yue 10.08 109,241 1,598,008 245,091 Language Language (local) Wiki Depth Articles Edits Total Pages

Trends

Trend of article depth.

The table shows how the depth of the largest 30 languages of Wikipedia has developed over time.

Date	en	de	fr	pl	ja	it	nl	pt	es	ru	sv	zh	no	fi	ca	uk	tr	ro	vo	cs	hu	eo	sk	da	id	he	ar	ko	lt	sr
Today	1061	93	241	32	85	171	17	175	211	137	10	201	45	40	35	50	202	122	14	46	59	16	21	64	107	259	224	152	26	155
1 July 2020	1009	94	236	30	84	169	16	172	208	136	7	198	42	40	32	44	222	118	14	47	59	17	20	64	109	259	214	152	23	157
1 Jan 2020	985	94	234	30	83	164	16	171	204	137	7	195	41	41	31	39	205	117	14	47	59	17	20	64	109	261	175	149	23	155
1 July 2019	964	94	229	30	82	160	15	166	199	135	7	188	42	42	30	38	200	114	14	46	58	17	19	64	110	260	182	150	23	151
1 Jan 2019	937	95	225	29	81	157	15	154	196	132	6	181	40	42	30	37	199	112	14	45	58	17	19	67	118	254	238	146	22	144
1 July 2018	907	94	224	28	80	155	14	150	205	134	6	175	39	42	30	38	205	110	14	42	58	17	19	67	117	247	225	110	23	141
1 Jan 2018	1011	97	222	27	80	132	14	148	204	149	6	175	38	45	31	39	221	103	15	42	59	17	19	66	125	254	219	115	23	133
1 July 2017	980	98	217	25	78	125	13	142	196	144	5	169	36	45	31	40	222	86	15	41	58	17	19	68	123	261	188	115	23	90
1 Jan 2017	953	100	213	24	77	122	13	138	191	140	5	161	36	45	31	39	229	85	15	40	58	17	19	66	107	256	218	112	22	71
1 July 2016	933	102	208	22	75	120	12	136	187	136	6	165	37	45	31	38	226	82	15	40	58	17	18	66	104	253	233	105	21	66
1 Jan 2016	910	98	205	21	72	115	11	133	198	131	9	163	35	46	31	37	240	82	15	41	59	17	18	68	84	251	223	90	21	69
1 July 2015	888	97	205	21	71	109	11	130	190	125	12	147	34	46	31	36	229	77	15	42	76	17	18	70	76	253	214	87	31	66
1 Jan 2015	887	89	193	20	69	105	9	123	176	115	11	131	32	44	31	37	210	97	15	39	97	18	19	70	65	257	214	87	31	66
1 July 2014	868	90	181	18	68	101	9	121	174	113	11	114	26	45	30	27	211	94	16	39	99	18	18	69	60	256	237	80	31	63
1 Jan 2014	824	90	172	18	66	98	10	117	172	109	11	108	28	45	27	38	214	90	15	39	100	18	18	67	56	253	248	82	31	57
1 July 2013	769	89	164	19	64	95	9	112	170	106	15	100	28	45	26	38	212	88	15	39	100	18	18	66	112	249	235	82	18	64
1 Jan 2013	731	89	165	17	61	91	18	103	175	104	38	108	28	44	24	38	214	81	15	38	99	18	15	62	88	242	243	77	17	57
1 July 2012	688	88	157	16	58	89	19	96	166	99	44	148	28	44	22	36	207	101	13	38	98	17	15	58	89	236	241	76	16	52
1 Jan 2012	648	89	151	14	56	85	18	88	158	92	50	90	29	44	20	35	207	97	12	37	92	16	24	39	72	231	230	74	17	51
1 July 2011	613	89	145	13	54	81	30	82	163	91	48	83	27	43	18	34	192	93	12	37	90	16	22	36	63	227	225	71	17	47
1 Jan 2011	572	87	140	10	51	77	29	71	179	90	46	80	25	41	17	33	185	86	11	34	86	16	20	35	61	220	208	62	17	40
1 July 2010	522	88	139	11	49	75	30	77	189	91	35	68	24	39	18	31	177	73	10	32	81	15	19	34	61	208	197	51	19	47
1 Jan 2010	478	86	128	10	46	71	27	74	141	87	31	63	23	37	17	25	159	54	9	33	71	14	16	31	42	205	167	43	19	46
1 July 2009	440	84	121	10	43	66	25	71	116	81	28	63	22	35	17	26	132	36	8	32	70	13	14	28	35	184	142	39	17	56
1 Jan 2009	413	81	115	9	41	57	23	66	94	74	24	71	20	32	17	15	95	30	8	28	64	13	10	26	30	177	117	36	15	52
1 July 2008	368	77	101	8	38	47	21	58	69	63	19	56	20	30	15	10	66	25	8	26	51	12	8	24	24	159	108	34	14	46
1 Jan 2008	302	70	79	9	33	43	20	49	51	56	15	59	18	27	14	12	43	17	3	24	39	11	7	21	20	132	107	27	12	35
1 July 2007	320	100	59	15			36			59	23		31	39										32
1 Jan 2007	224	87	45	12			32			37	19		25	34										24

See also

• Efficiency

More lists of Wikipedias by various criteria :

• List of Wikipedias by article count, users, file count and depth and its source (both updated daily)
• List of Wikipedias by edits per article and depth (both updated daily)
• List of Wikipedias by language group and family (both updated daily) and language families as a tree (not just Wikipedias)
• List of Wikipedias by country (updated manually)
• List of Wikipedias by speakers per article (updated daily)
• List of Wikipedias by sample of articles and expanded sample of articles (both updated monthly)
• List of Wikipedias by featured and good articles (both updated manually)
• List of Wikipedias by creation date (incomplete)
• List of Wikipedias in multiple writing systems
• List of Wikipedias having local media files and zero local media files (both updated manually)
• List of Wikipedia milestones or en:Wikipedia:Milestone statistics (tracking of major article-count milestones)
• List of largest wikis (not just Wikimedia wikis)
• Wikimedia News (announcements and tracking of milestones for all Wikimedia projects)
• Tell us about your Wikipedia