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 997 = 21.12 × 47.21 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 1070 = 155.77 × 6.87.

The Chechen Wikipedia has the smallest depth, at 0.19 = 9.93 × 0.019.

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 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 No.

Language Language (local) Wiki Depth Articles Edits Total Pages Afrikaans Afrikaans af 28.01 46,990 1,648,033 111,757 Alemannic Alemannisch als 26.68 23,356 796,991 55,064 Amharic አማርኛ am 38.76 13,818 355,060 44,155 Aragonese Aragonés an 77.23 32,388 1,640,951 104,066 Arabic العربية ar 194.32 540,604 27,363,575 3,061,183 Egyptian Arabic مصرى arz 307.37 17,222 822,951 143,151 Asturian Asturianu ast 4.97 50,533 1,114,343 80,866 Azerbaijani Azərbaycanca az 34.2 124,758 4,285,515 325,794 South Azerbaijani تۆرکجه azb 0.2 47,402 221,101 59,515 Bashkir Башҡорт ba 23.7 39,850 756,461 115,720 Bavarian Boarisch bar 61.39 23,094 649,418 90,722 Samogitian Žemaitėška bat-smg 6.1 16,132 358,042 27,095 Belarusian Беларуская be 29.56 146,060 2,877,146 465,432 Belarusian (Taraškievica) Беларуская (тарашкевіца) be-tarask 32.8 61,406 2,000,092 161,270 Bulgarian Български bg 24.41 234,409 8,489,340 521,432 Bengali বাংলা bn 444.76 52,443 2,819,818 533,520 Bishnupriya Manipuri বিষ্ণুপ্রিয়া মণিপুরী bpy 23.95 25,077 811,378 57,846 Breton Brezhoneg br 14.09 63,057 1,847,242 124,519 Bosnian Bosanski bs 118.46 75,439 3,069,248 354,482 Buginese Basa Ugi bug 1.07 14,120 199,672 18,578 Catalan Català ca 30.79 555,036 19,202,034 1,381,001 Chechen Нохчийн ce 0.19 164,313 1,856,628 187,061 Cebuano Sinugboanong Binisaya ceb 0.8 5,333,327 15,766,215 8,910,964 Sorani کوردی ckb 112.54 19,771 577,133 112,281 Czech Čeština cs 41.12 389,769 15,308,600 1,041,827 Chuvash Чăваш cv 4.46 40,642 632,434 68,975 Welsh Cymraeg cy 49.48 92,448 6,947,194 203,839 Danish Dansk da 66.45 231,498 9,217,567 780,662 German Deutsch de 97.56 2,102,496 173,821,494 5,942,005 Greek Ελληνικά el 68.71 136,682 6,770,426 418,292 English English en 996.97 5,479,835 910,874,083 43,130,379 Esperanto Esperanto eo 16.8 241,850 6,275,341 529,912 Spanish Español es 199.75 1,354,835 101,750,524 6,007,656 Estonian Eesti et 28.1 161,220 4,871,842 408,774 Basque Euskara eu 18.64 283,650 6,114,326 697,225 Persian فارسی fa 213.62 575,877 26,014,237 3,787,515 Finnish Suomi fi 44.8 422,047 17,609,353 1,141,174 Faroese Føroyskt fo 36.16 12,604 344,895 37,641 French Français fr 218.13 1,910,815 143,276,918 8,973,387 West Frisian Frysk fy 29.83 39,068 926,855 113,859 Irish Gaeilge ga 5.15 43,975 882,841 72,582 Scottish Gaelic Gàidhlig gd 22.09 14,591 551,734 30,793 Galician Galego gl 27.59 141,146 4,594,274 344,001 Gujarati ગુજરાતી gu 19.2 27,390 504,326 73,072 Hebrew עברית he 262.12 212,814 22,504,407 902,986 Hindi हिन्दी hi 118.91 121,141 3,684,477 694,772 Croatian Hrvatski hr 29.49 177,762 5,117,650 470,458 Upper Sorbian Hornjoserbsce hsb 27.96 12,351 367,522 31,459 Haitian Krèyol ayisyen ht 0.54 51,518 701,617 62,896 Hungarian Magyar hu 58.73 417,182 19,813,213 1,205,935 Armenian Հայերեն hy 38.68 230,410 5,434,383 769,765 Interlingua Interlingua ia 6.33 20,547 588,387 32,744 Indonesian Bahasa Indonesia id 124.63 410,170 14,193,251 2,221,901 Ido Ido io 5.8 27,243 917,454 41,130 Ilokano Ilokano ilo 76.59 10,848 327,709 46,677 Icelandic Íslenska is 38.66 43,544 1,622,655 115,905 Italian Italiano it 127.81 1,383,839 96,700,620 4,908,649 Japanese 日本語 ja 78.96 1,076,601 66,601,311 3,160,576 Javanese Basa Jawa jv 27.1 50,293 1,308,879 134,103 Georgian ქართული ka 33.81 117,614 3,466,268 327,989 Kazakh Қазақша kk 9.07 219,602 2,668,925 508,141 Kannada ಕನ್ನಡ kn 61.45 22,158 716,687 80,299 Korean 한국어 ko 112.98 397,641 21,469,923 1,523,532 Kurdish Kurdî ku 29.74 23,038 722,645 58,907 Kirghiz Кыргызча ky 0.21 75,705 302,369 95,216 Latin Latina la 12.04 127,195 3,388,157 246,154 Luxembourgish Lëtzebuergesch lb 27.44 50,311 2,120,903 110,453 Limburgish Limburgs li 114.48 12,044 436,835 59,672 Lombard Lumbaart lmo 30.97 36,180 1,109,333 95,142 Lithuanian Lietuvių lt 22.82 182,961 5,417,415 428,863 Latvian Latviešu lv 82.51 78,932 2,811,197 321,328 Maithili मैथिली mai 7.46 11,818 131,011 26,269 Banyumasan Basa Banyumasan map-bms 8.67 13,285 210,585 27,392 Malagasy Malagasy mg 9.86 84,663 853,484 219,451 Minangkabau Bahaso Minangkabau min 0.885 221,993 1,540,469 316,712 Macedonian Македонски mk 135.72 90,658 4,408,474 414,516 Malayalam മലയാളം ml 233.84 52,197 2,624,717 339,090 Mongolian Монгол mn 47.16 17,563 536,474 56,810 Marathi मराठी mr 75.59 48,685 1,554,515 200,824 Hill Mari Кырык Мары (Kyryk Mary) mrj 1.35 10,240 93,108 15,016 Malay Bahasa Melayu ms 15.64 303,970 4,491,133 816,603 Burmese language မ္ရန္‌မာစာ my 5.26 37,305 383,381 75,175 Mazandarani مَزِروني mzn 6.87 12,544 140,839 26,920 Neapolitan Nnapulitano nap 17.77 14,466 700,566 26,274 Low Saxon Plattdüütsch nds 33.31 26,735 825,666 72,440 Nepali नेपाली ne 23.56 30,087 619,758 83,776 Newari नेवारी new 12.7 72,136 842,967 196,134 Dutch Nederlands nl 13.63 1,911,461 51,080,291 3,848,194 Norwegian (Nynorsk) Nynorsk nn 17.46 134,926 2,981,114 319,487 Norwegian (Bokmål) Norsk (Bokmål) no 36.99 475,290 17,755,616 1,238,865 Occitan Occitan oc 7.02 83,555 2,215,034 139,022 Oriya ଓଡ଼ିଆ or 56.94 13,122 292,382 56,739 Ossetian Иронау os 97.29 10,529 488,725 40,382 Punjabi ਪੰਜਾਬੀ pa 24.69 26,847 397,816 90,458 Polish Polski pl 25.49 1,241,292 50,349,073 2,689,657 Piedmontese Piemontèis pms 2.46 64,190 867,350 98,047 Western Panjabi شاہ مکھی پنجابی pnb 1.2 45,213 519,088 62,354 Portuguese Português pt 144.43 978,482 50,907,896 4,458,437 Quechua Runa Simi qu 31.96 20,272 665,154 52,454 Romanian Română ro 87.18 379,141 11,685,316 1,748,481 Russian Русский ru 145.07 1,421,809 100,103,704 5,398,766 Sanskrit संस्कृतम् sa 100.9 11,181 424,889 49,527 Sakha Саха тыла sah 51.91 11,409 357,561 38,319 Sicilian Sicilianu scn 19.89 25,643 756,832 57,043 Scots Scots sco 25.49 46,687 631,322 168,421 Serbo-Croatian Srpskohrvatski / Српскохрватски sh 789.75 439,889 40,808,461 4,582,328 Sinhalese සිංහල si 87.56 13,706 415,348 64,083 Simple English Simple English simple 75.68 127,963 5,785,128 432,259 Slovak Slovenčina sk 18.6 222,550 6,579,471 482,415 Slovenian Slovenščina sl 24.89 158,141 5,050,794 372,366 Albanian Shqip sq 30.12 69,078 1,912,253 187,918 Serbian Српски sr 137.38 356,250 15,764,913 1,745,801 Sundanese Basa Sunda su 4.18 38,707 548,762 66,200 Swedish Svenska sv 5.46 3,788,858 40,790,324 7,615,882 Swahili Kiswahili sw 21.76 37,678 1,053,699 88,662 Tamil தமிழ் ta 26.1 113,146 2,501,337 319,821 Telugu తెలుగు te 50.11 67,495 2,178,816 218,961 Tajik Тоҷикӣ tg 6.77 68,917 886,644 140,211 Thai ไทย th 241.64 119,425 7,572,057 672,798 Tagalog Tagalog tl 23.33 82,544 1,680,503 230,043 Turkish Türkçe tr 221.44 298,523 20,094,880 1,520,462 Tatar Татарча tt 25.39 72,601 2,229,259 175,152 Ukrainian Українська uk 38.81 734,784 21,292,598 2,209,342 Urdu اردو ur 170.89 123,921 5,660,873 689,126 Uzbek O‘zbek uz 61.69 128,997 2,663,167 616,482 Venetian Vèneto vec 76.55 10,973 602,211 33,676 Vietnamese Tiếng Việt vi 119.43 1,161,311 31,275,329 7,287,514 Volapük Volapük vo 15.12 120,620 3,313,091 249,276 Walloon Walon wa 22.31 14,633 336,568 37,792 Waray-Waray Winaray war 3.57 1,262,885 6,298,257 2,874,154 Yiddish ייִדיש yi 43.34 14,109 541,872 39,040 Yoruba Yorùbá yo 5.41 31,579 563,572 54,398 Chinese 中文 zh 175.28 962,982 47,481,045 5,169,931 Min Nan Bân-lâm-gú zh-min-nan 10.85 221,800 1,821,396 662,264 Cantonese 粵語 zh-yue 20.36 58,977 1,164,805 156,518 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	997	98	218	25	79	128	14	144	200	145	5	175	37	45	31	39	221	87	15	41	59	17	19	66	125	262	194	113	23	137
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)