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 980 = 18.82 × 52.08 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 = 154.64 × 6.87.

The Chechen Wikipedia has the smallest depth, at 8.688 = 7.91 × 1.098.

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 33.14 86,849 2,079,355 265,516 Alemannic Alemannisch als 27.57 26,749 935,734 63,272 Amharic አማርኛ am 33.53 14,811 358,094 45,325 Aragonese Aragonés an 63.59 36,344 1,644,353 111,973 Arabic العربية ar 164.07 1,018,235 40,630,513 6,051,992 Egyptian Arabic مصرى arz 193.65 26,213 918,838 193,691 Asturian Asturianu ast 5.4 99,752 2,683,775 155,567 Azerbaijani Azərbaycanca az 31.9 152,169 4,942,760 395,216 South Azerbaijani تۆرکجه azb 9.8 152,204 1,156,784 448,807 Bashkir Башҡорт ba 21.48 50,576 922,047 142,819 Bavarian Boarisch bar 45.41 30,372 732,021 109,547 Samogitian Žemaitėška bat-smg 5.8 16,829 349,128 28,383 Belarusian Беларуская be 27.49 180,707 3,505,737 559,064 Belarusian (Taraškievica) Беларуская (тарашкевіца) be-tarask 34.82 68,387 2,092,581 189,983 Bulgarian Български bg 25.11 257,784 9,666,639 572,044 Bengali বাংলা bn 359.96 78,137 3,825,209 722,345 Bishnupriya Manipuri বিষ্ণুপ্রিয়া মণিপুরী bpy 23.69 25,083 782,335 58,459 Breton Brezhoneg br 12.77 67,431 1,853,009 131,652 Bosnian Bosanski bs 105.51 81,352 3,062,361 372,985 Buginese Basa Ugi bug 1.1 14,128 192,617 18,753 Catalan Català ca 30.72 631,490 22,391,442 1,553,400 Chechen Нохчийн ce 8.69 254,187 4,117,664 520,581 Min Dong Mìng-dĕ̤ng-ngṳ̄ cdo 2.71 15,389 85,294 30,539 Cebuano Sinugboanong Binisaya ceb 2 5,378,778 29,553,350 9,743,973 Sorani کوردی ckb 89.4 24,995 647,995 131,429 Czech Čeština cs 46.49 440,079 17,876,741 1,225,835 Chuvash Чăваш cv 5.51 42,334 663,710 75,967 Welsh Cymraeg cy 57.14 106,724 9,354,636 234,437 Danish Dansk da 63.5 255,528 10,122,634 843,210 German Deutsch de 93.96 2,371,833 193,279,448 6,629,951 Greek Ελληνικά el 61.23 170,893 7,894,601 511,180 Emilian-Romagnol Emiliàn e rumagnòl eml 11.06 12,209 133,187 32,155 English English en 980.33 5,978,169 924,592,121 49,121,748 Esperanto Esperanto eo 16.79 271,277 6,778,905 602,772 Spanish Español es 203.99 1,561,659 121,335,282 6,868,257 Estonian Eesti et 22.24 203,491 5,493,402 490,150 Basque Euskara eu 10.82 342,351 7,242,759 690,018 Persian فارسی fa 179.57 702,109 27,679,750 4,492,539 Finnish Suomi fi 40.91 474,256 18,523,539 1,267,847 Faroese Føroyskt fo 34.94 13,211 356,773 39,042 French Français fr 233.14 2,161,236 164,658,180 10,490,877 West Frisian Frysk fy 30.99 43,109 977,722 130,935 Irish Gaeilge ga 4.44 51,775 946,407 84,335 Scottish Gaelic Gàidhlig gd 20.4 14,946 551,524 30,931 Galician Galego gl 35.43 160,118 5,313,349 431,825 Gujarati ગુજરાતી gu 39.42 28,769 685,157 96,587 Hebrew עברית he 260.49 254,266 26,743,392 1,078,288 Hindi हिन्दी hi 168.38 134,445 4,390,697 942,896 Croatian Hrvatski hr 22.47 212,396 5,367,638 528,253 Upper Sorbian Hornjoserbsce hsb 25.72 13,446 366,621 34,306 Haitian Krèyol ayisyen ht 0.53 57,130 734,905 69,941 Hungarian Magyar hu 58.71 460,939 21,942,156 1,330,674 Armenian Հայերեն hy 41.14 260,953 6,628,071 865,946 Interlingua Interlingua ia 6.19 21,960 616,086 34,983 Indonesian Bahasa Indonesia id 108.85 511,200 16,231,314 2,677,334 Ido Ido io 5.43 29,056 952,390 43,538 Ilokano Ilokano ilo 56.27 13,668 347,064 54,177 Icelandic Íslenska is 35.09 48,642 1,652,780 129,211 Italian Italiano it 163.57 1,569,645 108,954,270 6,456,574 Japanese 日本語 ja 82.75 1,179,708 75,034,979 3,496,189 Javanese Basa Jawa jv 27.95 56,991 1,501,626 153,245 Georgian ქართული ka 35.03 133,656 3,755,870 387,890 Kazakh Қазақша kk 9.92 225,621 2,725,357 542,727 Kannada ಕನ್ನಡ kn 98.95 25,296 953,773 111,226 Korean 한국어 ko 148.21 476,761 25,235,174 2,184,468 Kurdish Kurdî ku 24.21 26,464 740,446 65,064 Kirghiz Кыргызча ky 0.35 79,746 352,088 105,464 Latin Latina la 12.63 131,569 3,480,827 259,164 Luxembourgish Lëtzebuergesch lb 24.07 57,414 2,234,425 123,679 Limburgish Limburgs li 108.87 12,659 438,706 62,522 Lombard Lumbaart lmo 24.59 39,150 991,852 101,150 Lithuanian Lietuvių lt 22.93 197,423 5,682,855 468,995 Latvian Latviešu lv 72.8 99,199 3,139,088 402,128 Maithili मैथिली mai 13.94 13,487 201,253 34,265 Banyumasan Basa Banyumasan map-bms 9.96 13,340 208,574 29,049 Malagasy Malagasy mg 10.03 92,499 977,078 236,646 Meadow Mari Олык Марий (Olyk Marij) mhr 14.86 10,077 177,574 24,508 Minangkabau Bahaso Minangkabau min 1.283 223,465 2,006,868 325,366 Macedonian Македонски mk 101.95 103,158 3,887,684 462,358 Malayalam മലയാളം ml 208.15 66,850 3,196,015 413,952 Mongolian Монгол mn 70.03 18,954 596,635 75,303 Marathi मराठी mr 72.41 55,576 1,714,191 228,090 Hill Mari Кырык Мары (Kyryk Mary) mrj 2.24 10,269 95,554 16,690 Malay Bahasa Melayu ms 15.75 331,943 4,666,046 915,393 Burmese language မြန်မာဘာသာ my 10.2 45,180 494,848 114,606 Mazandarani مَزِروني mzn 7.37 13,121 149,626 28,728 Neapolitan Nnapulitano nap 10.28 14,558 659,936 23,333 Low Saxon Plattdüütsch nds 8.31 58,228 900,280 119,323 Nepali नेपाली ne 25.43 33,905 759,519 94,075 Newari नेवारी new 12.72 72,231 845,271 196,446 Dutch Nederlands nl 15.77 1,984,472 55,035,999 4,147,954 Norwegian (Nynorsk) Nynorsk nn 15.59 151,055 3,174,003 348,799 Norwegian (Bokmål) Norsk (Bokmål) no 41.44 524,728 19,928,241 1,429,312 Occitan Occitan oc 6.8 86,822 2,142,201 145,922 Oriya ଓଡ଼ିଆ or 61.6 15,302 377,650 65,205 Ossetian Иронау os 84.71 11,764 475,340 45,125 Punjabi ਪੰਜਾਬੀ pa 26.72 32,955 500,248 114,436 Polish Polski pl 30.31 1,371,644 57,967,773 3,124,812 Piedmontese Piemontèis pms 2.45 64,551 845,029 99,152 Western Panjabi شاہ مکھی پنجابی pnb 2.48 51,230 542,289 82,714 Portuguese Português pt 170.83 1,016,649 56,698,669 4,938,101 Quechua Runa Simi qu 26.13 21,607 638,406 53,619 Romanian Română ro 116.66 402,422 13,134,737 2,168,469 Russian Русский ru 136.2 1,582,129 103,414,761 6,046,955 Sanskrit संस्कृतम् sa 134.38 11,442 448,006 59,970 Sakha Саха тыла sah 50.93 12,095 348,529 42,091 Sicilian Sicilianu scn 16.49 26,063 726,403 55,252 Scots Scots sco 24.6 55,832 724,519 202,056 Sindhi سنڌي، سندھی ، सिन्ध sd 17.3 12,535 164,399 37,403 Serbo-Croatian Srpskohrvatski / Српскохрватски sh 759.11 450,377 40,908,585 4,620,816 Sinhalese සිංහල si 81.18 15,474 443,867 71,384 Simple English Simple English simple 77.42 151,861 6,715,233 525,732 Slovak Slovenčina sk 19.86 231,784 6,924,491 512,863 Slovenian Slovenščina sl 25.71 166,178 5,229,760 398,905 Albanian Shqip sq 33.78 78,392 2,056,963 231,114 Serbian Српски sr 155.17 627,140 22,661,880 3,845,006 Sundanese Basa Sunda su 1.96 59,704 593,790 92,756 Swedish Svenska sv 6.92 3,744,762 46,542,607 7,768,901 Swahili Kiswahili sw 11.1 54,823 1,090,996 113,834 Tamil தமிழ் ta 32.14 125,353 2,857,334 386,864 Telugu తెలుగు te 75.35 71,618 2,769,474 263,310 Tajik Тоҷикӣ tg 4.27 99,644 1,050,024 186,354 Thai ไทย th 274.2 134,092 8,597,692 819,695 Tagalog Tagalog tl 32.06 76,060 1,725,570 234,977 Turkish Türkçe tr 201.98 336,662 21,114,751 1,690,478 Tatar Татарча tt 22.13 88,242 2,406,098 211,238 Ukrainian Українська uk 38.84 962,449 26,606,862 2,964,831 Urdu اردو ur 100.07 150,298 3,997,232 839,216 Uzbek O‘zbek uz 45.56 133,298 2,066,537 630,133 Venetian Vèneto vec 63.4 12,453 605,619 36,942 Vietnamese Tiếng Việt vi 498.33 1,237,488 56,749,699 15,825,386 Volapük Volapük vo 14.03 123,734 3,206,004 254,220 Walloon Walon wa 21.86 15,439 351,045 39,723 Waray-Waray Winaray war 3.52 1,263,839 6,206,335 2,877,969 Wu 吴语 wuu 2.04 22,931 257,144 35,014 Mingrelian მარგალური (Margaluri) xmf 6.72 13,362 139,960 29,178 Yiddish ייִדיש yi 42.07 14,907 546,513 41,577 Yoruba Yorùbá yo 4.93 32,016 521,398 55,119 Chinese 中文 zh 194.28 1,084,458 56,828,963 5,993,211 Min Nan Bân-lâm-gú zh-min-nan 13 232,349 1,962,419 750,527 Cantonese 粵語 zh-yue 16.79 75,604 1,347,963 192,768 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	980	94	233	30	83	164	16	171	204	136	7	194	41	41	31	39	202	117	14	46	59	17	20	63	109	260	164	148	23	155
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 by featured and good articles (updated manually)
• List of Wikipedias by creation date (incomplete)
• List of Wikipedias having zero local media files
• 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)