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.

English Wikipedia has depth of 963 = 18.72 × 51.45 and is the deepest one for Wikipedias with number of articles greater than 10000.

For the unblocked Wikipedias, the Ripuarian Wikipedia has the largest depth, at 1062 = 154.89 × 6.85.

The Chechen Wikipedia has the smallest depth, at 0.184 = 12.19 × 0.015.

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 No.

Language Language (local) Wiki Depth Articles Edits Total Pages Afrikaans Afrikaans af 33.04 82,762 2,010,772 250,765 Alemannic Alemannisch als 26.68 26,027 912,446 60,706 Amharic አማርኛ am 33.2 14,774 354,504 45,159 Aragonese Aragonés an 65.99 35,492 1,633,925 110,453 Arabic العربية ar 167.84 903,837 36,797,060 5,382,007 Egyptian Arabic مصرى arz 286.42 20,559 872,706 177,455 Asturian Asturianu ast 4.52 99,686 2,341,748 154,044 Azerbaijani Azərbaycanca az 31.8 148,300 4,794,667 385,391 South Azerbaijani تۆرکجه azb 5.5 151,949 964,782 373,801 Bashkir Башҡорт ba 21.73 49,247 897,383 139,884 Bavarian Boarisch bar 49.25 28,425 716,870 104,633 Samogitian Žemaitėška bat-smg 5.75 16,749 347,415 28,185 Belarusian Беларуская be 28.66 173,592 3,397,294 546,259 Belarusian (Taraškievica) Беларуская (тарашкевіца) be-tarask 34.51 67,558 2,069,154 186,814 Bulgarian Български bg 25.29 253,640 9,523,226 564,052 Bengali বাংলা bn 390.45 70,087 3,544,275 674,029 Bishnupriya Manipuri বিষ্ণুপ্রিয়া মণিপুরী bpy 23.53 25,086 781,637 58,330 Breton Brezhoneg br 12.77 66,989 1,836,552 130,900 Bosnian Bosanski bs 105.7 80,286 2,993,350 370,795 Buginese Basa Ugi bug 1.07 14,128 192,260 18,690 Catalan Català ca 30.14 617,433 21,432,289 1,520,195 Chechen Нохчийн ce 0.18 216,081 2,958,656 242,621 Min Dong Mìng-dĕ̤ng-ngṳ̄ cdo 2.49 14,626 78,042 28,600 Cebuano Sinugboanong Binisaya ceb 1.61 5,379,095 27,676,124 9,337,747 Sorani کوردی ckb 91.65 24,035 626,983 127,997 Czech Čeština cs 46.12 431,501 17,441,296 1,200,230 Chuvash Чăваш cv 5.27 42,014 656,232 74,534 Welsh Cymraeg cy 52.75 105,487 8,686,811 230,201 Danish Dansk da 64.1 251,049 9,971,490 831,415 German Deutsch de 93.98 2,323,063 189,135,909 6,497,170 Greek Ελληνικά el 60.97 165,249 7,606,391 494,115 Emilian-Romagnol Emiliàn e rumagnòl eml 11.02 12,076 131,299 31,801 English English en 963.28 5,892,474 901,650,774 48,158,518 Esperanto Esperanto eo 17.26 261,276 6,645,750 582,722 Spanish Español es 199.42 1,532,905 116,971,437 6,722,340 Estonian Eesti et 22.77 197,974 5,384,307 480,015 Basque Euskara eu 10.63 336,894 6,997,311 679,162 Persian فارسی fa 177.08 683,622 26,541,006 4,378,610 Finnish Suomi fi 41.91 462,529 18,228,985 1,245,066 Faroese Føroyskt fo 35 13,125 353,927 38,852 French Français fr 229.06 2,123,994 160,455,897 10,247,886 West Frisian Frysk fy 30.81 42,471 966,597 128,380 Irish Gaeilge ga 4.41 51,230 932,308 83,402 Scottish Gaelic Gàidhlig gd 20.66 14,828 549,138 30,788 Galician Galego gl 33.92 157,583 5,186,836 418,198 Gujarati ગુજરાતી gu 35.77 28,524 665,565 91,927 Hebrew עברית he 259.1 246,669 25,844,801 1,045,103 Hindi हिन्दी hi 156.98 132,132 4,242,202 890,718 Croatian Hrvatski hr 22.81 207,654 5,277,390 518,529 Upper Sorbian Hornjoserbsce hsb 25.64 13,426 365,365 34,238 Haitian Krèyol ayisyen ht 0.54 56,245 729,485 68,899 Hungarian Magyar hu 58.33 454,253 21,462,671 1,312,062 Armenian Հայերեն hy 41.37 253,493 6,409,797 845,781 Interlingua Interlingua ia 6.17 21,829 612,402 34,748 Indonesian Bahasa Indonesia id 110.17 484,757 15,329,489 2,566,760 Ido Ido io 5.55 28,516 946,499 42,796 Ilokano Ilokano ilo 61.44 12,525 340,003 50,277 Icelandic Íslenska is 35.52 47,760 1,637,456 127,046 Italian Italiano it 160.5 1,541,342 106,267,158 6,293,353 Japanese 日本語 ja 82.1 1,159,957 73,279,257 3,435,828 Javanese Basa Jawa jv 28.08 56,340 1,487,140 151,692 Georgian ქართული ka 35.43 130,458 3,691,927 379,385 Kazakh Қазақша kk 9.72 224,696 2,699,002 537,283 Kannada ಕನ್ನಡ kn 92.28 24,839 920,528 105,687 Korean 한국어 ko 149.58 462,281 24,504,667 2,128,617 Kurdish Kurdî ku 23.66 26,124 731,399 63,588 Kirghiz Кыргызча ky 0.35 79,420 350,085 104,970 Latin Latina la 12.35 130,852 3,418,834 256,911 Luxembourgish Lëtzebuergesch lb 23.77 56,815 2,186,470 122,338 Limburgish Limburgs li 109.68 12,418 434,492 61,245 Lombard Lumbaart lmo 24.91 38,678 986,715 100,198 Lithuanian Lietuvių lt 22.49 196,022 5,565,521 464,616 Latvian Latviešu lv 72.32 97,422 3,082,858 393,355 Maithili मैथिली mai 12.75 13,384 192,432 33,247 Banyumasan Basa Banyumasan map-bms 9.79 13,360 208,150 28,944 Malagasy Malagasy mg 10.09 91,797 971,167 235,355 Meadow Mari Олык Марий (Olyk Marij) mhr 14.2 10,046 176,548 24,004 Minangkabau Bahaso Minangkabau min 1.021 222,841 1,641,165 322,699 Macedonian Македонски mk 103.34 101,329 3,850,911 455,666 Malayalam മലയാളം ml 211.35 64,201 3,094,644 399,585 Mongolian Монгол mn 66.98 18,704 583,480 72,760 Marathi मराठी mr 75 53,816 1,687,347 223,396 Hill Mari Кырык Мары (Kyryk Mary) mrj 1.98 10,267 94,905 16,252 Malay Bahasa Melayu ms 15.79 327,821 4,593,855 906,392 Burmese language မြန်မာဘာသာ my 7.37 44,506 465,089 100,721 Mazandarani مَزِروني mzn 7.35 13,095 148,708 28,688 Neapolitan Nnapulitano nap 10.18 14,532 658,080 23,244 Low Saxon Plattdüütsch nds 10.09 51,809 873,914 110,269 Nepali नेपाली ne 26.85 32,231 734,682 91,018 Newari नेवारी new 12.72 72,232 845,020 196,427 Dutch Nederlands nl 15.37 1,972,333 54,031,985 4,102,873 Norwegian (Nynorsk) Nynorsk nn 15.7 149,238 3,145,124 345,126 Norwegian (Bokmål) Norsk (Bokmål) no 41.41 512,799 19,554,899 1,393,793 Occitan Occitan oc 6.76 85,820 2,117,083 144,023 Oriya ଓଡ଼ିଆ or 61.87 15,021 370,905 64,162 Ossetian Иронау os 85.16 11,645 474,272 44,600 Punjabi ਪੰਜਾਬੀ pa 27.12 31,493 480,969 109,884 Polish Polski pl 30.14 1,346,605 56,867,133 3,061,978 Piedmontese Piemontèis pms 2.43 64,490 842,614 98,962 Western Panjabi شاہ مکھی پنجابی pnb 2.42 47,947 529,341 76,293 Portuguese Português pt 165.98 1,010,433 55,555,824 4,861,101 Quechua Runa Simi qu 26.56 21,390 636,794 53,274 Romanian Română ro 114.17 399,089 12,913,279 2,131,659 Russian Русский ru 134.44 1,556,869 100,744,904 5,940,283 Sanskrit संस्कृतम् sa 129.56 11,395 444,731 58,392 Sakha Саха тыла sah 50.25 12,038 347,053 41,572 Sicilian Sicilianu scn 16.46 26,055 725,563 55,219 Scots Scots sco 24.8 54,331 705,369 197,490 Sindhi سنڌي، سندھی ، सिन्ध sd 16.55 11,777 148,863 35,010 Serbo-Croatian Srpskohrvatski / Српскохрватски sh 760.43 449,616 40,883,400 4,615,524 Sinhalese සිංහල si 81.64 15,218 437,892 70,322 Simple English Simple English simple 78.72 147,096 6,588,163 510,316 Slovak Slovenčina sk 19.41 230,382 6,843,508 506,554 Slovenian Slovenščina sl 25.29 164,916 5,153,839 394,291 Albanian Shqip sq 31.19 77,377 1,976,611 222,279 Serbian Српски sr 150.89 621,985 21,991,356 3,796,445 Sundanese Basa Sunda su 2.95 50,070 575,544 82,673 Swedish Svenska sv 6.7 3,748,239 45,987,209 7,725,617 Swahili Kiswahili sw 11.82 51,959 1,067,928 109,025 Tamil தமிழ் ta 30.67 122,807 2,771,873 371,946 Telugu తెలుగు te 70.71 70,923 2,681,153 254,761 Tajik Тоҷикӣ tg 4.3 97,870 1,038,029 183,110 Thai ไทย th 266.34 132,329 8,380,952 799,223 Tagalog Tagalog tl 31.45 75,508 1,702,394 231,741 Turkish Türkçe tr 200.47 330,905 20,740,850 1,653,950 Tatar Татарча tt 22.3 86,180 2,381,293 205,824 Ukrainian Українська uk 37.89 921,341 25,613,346 2,794,853 Urdu اردو ur 100.86 147,354 3,928,138 825,944 Uzbek O‘zbek uz 46.45 131,276 2,044,830 626,517 Venetian Vèneto vec 63.86 12,257 601,983 36,314 Vietnamese Tiếng Việt vi 456.65 1,224,120 54,476,826 14,908,707 Volapük Volapük vo 14.18 122,779 3,200,435 252,672 Walloon Walon wa 22.68 15,038 347,551 39,040 Waray-Waray Winaray war 3.52 1,263,648 6,201,595 2,877,457 Wu 吴语 wuu 2.56 20,646 252,767 32,495 Mingrelian მარგალური (Margaluri) xmf 6.86 13,066 138,162 28,650 Yiddish ייִדיש yi 41.83 14,776 542,992 41,053 Yoruba Yorùbá yo 4.91 31,889 519,246 54,869 Chinese 中文 zh 188.34 1,066,652 54,921,450 5,840,029 Min Nan Bân-lâm-gú zh-min-nan 13.17 228,274 1,929,860 741,924 Cantonese 粵語 zh-yue 16.83 73,558 1,309,733 187,841 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	963	94	229	30	82	160	15	166	199	134	7	188	41	42	30	38	200	114	14	46	58	17	19	64	110	259	168	150	22	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

Lists of Wikipedias by various criteria: edit

• List of Wikipedias by article count, users, file count and depth (Source) (updated daily)
• List of Wikipedias by edits per article and depth (updated daily)
• List of Wikipedias by language group, family, and macrofamily (updated daily)
• 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 having zero local media files
• List of some Wikipedias by date created
• List of largest wikis (not just Wikimedia wikis)
• Wikipedia milestones (+en:Wikipedia:Milestone statistics) (tracking of major article-count milestones)
• Wikimedia News (announcements and tracking of milestones for all Wikimedia projects)