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 953 = 18.67 × 51.01 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 = 155.12 × 6.9.

The Chechen Wikipedia has the smallest depth, at 0.222 = 12.16 × 0.018.

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 34.37 77,868 1,970,092 235,802 Alemannic Alemannisch als 26.41 25,609 896,873 59,513 Amharic አማርኛ am 34.28 14,589 353,430 45,106 Aragonese Aragonés an 67.01 34,969 1,627,537 109,072 Arabic العربية ar 201.1 757,314 34,191,852 4,767,554 Egyptian Arabic مصرى arz 282.52 20,230 858,608 172,754 Asturian Asturianu ast 4.29 99,300 2,248,017 152,937 Azerbaijani Azərbaycanca az 31.5 145,374 4,663,326 377,464 South Azerbaijani تۆرکجه azb 6.2 134,762 893,257 343,321 Bashkir Башҡорт ba 21.98 47,969 880,813 136,495 Bavarian Boarisch bar 50.19 27,936 710,664 103,440 Samogitian Žemaitėška bat-smg 5.75 16,716 346,970 28,126 Belarusian Беларуская be 30.02 167,799 3,346,644 535,550 Belarusian (Taraškievica) Беларуская (тарашкевіца) be-tarask 33.44 66,582 2,045,012 181,177 Bulgarian Български bg 25.24 251,246 9,403,643 558,978 Bengali বাংলা bn 412.61 66,019 3,413,607 652,182 Bishnupriya Manipuri বিষ্ণুপ্রিয়া মণিপুরী bpy 23.51 25,083 781,433 58,301 Breton Brezhoneg br 12.87 66,528 1,828,618 130,203 Bosnian Bosanski bs 106.59 79,725 2,979,889 369,610 Buginese Basa Ugi bug 1.07 14,123 192,161 18,683 Catalan Català ca 29.73 610,997 20,925,865 1,504,095 Chechen Нохчийн ce 0.22 213,593 2,947,688 242,429 Min Dong Mìng-dĕ̤ng-ngṳ̄ cdo 2.47 14,368 76,445 28,062 Cebuano Sinugboanong Binisaya ceb 1.52 5,322,442 26,349,900 9,197,336 Sorani کوردی ckb 93.77 23,338 614,030 125,514 Czech Čeština cs 45.55 426,485 17,109,658 1,183,491 Chuvash Чăваш cv 5.22 41,937 654,818 74,190 Welsh Cymraeg cy 48.09 104,359 7,961,510 226,403 Danish Dansk da 64.47 248,410 9,873,438 824,923 German Deutsch de 94.19 2,291,399 186,294,149 6,419,667 Greek Ελληνικά el 62.53 160,834 7,476,857 484,645 Emilian-Romagnol Emiliàn e rumagnòl eml 11.05 11,973 130,076 31,582 English English en 952.61 5,838,931 887,813,192 47,542,142 Esperanto Esperanto eo 17.25 257,161 6,555,120 572,861 Spanish Español es 196.66 1,516,317 114,813,671 6,623,857 Estonian Eesti et 23.8 190,662 5,270,563 467,771 Basque Euskara eu 10.25 333,347 6,802,595 667,722 Persian فارسی fa 175.92 672,113 25,828,211 4,316,366 Finnish Suomi fi 42.19 456,448 18,022,105 1,231,459 Faroese Føroyskt fo 35.85 12,918 351,002 38,553 French Français fr 228.03 2,097,527 157,983,754 10,110,227 West Frisian Frysk fy 30.63 41,921 955,000 126,292 Irish Gaeilge ga 4.44 50,650 923,856 82,537 Scottish Gaelic Gàidhlig gd 20.53 14,796 545,070 30,710 Galician Galego gl 33.49 155,891 5,111,271 412,031 Gujarati ગુજરાતી gu 34.54 28,391 658,169 90,134 Hebrew עברית he 257.3 241,332 25,222,680 1,019,675 Hindi हिन्दी hi 152.08 130,546 4,156,814 864,895 Croatian Hrvatski hr 23.09 204,579 5,226,303 512,406 Upper Sorbian Hornjoserbsce hsb 25.65 13,402 364,875 34,175 Haitian Krèyol ayisyen ht 0.56 55,245 725,581 67,835 Hungarian Magyar hu 58.43 448,335 21,126,626 1,297,659 Armenian Հայերեն hy 39.89 254,894 6,271,337 846,251 Interlingua Interlingua ia 6.19 21,537 607,484 34,257 Indonesian Bahasa Indonesia id 118.88 458,935 14,967,832 2,506,705 Ido Ido io 5.61 28,356 944,338 42,618 Ilokano Ilokano ilo 65.74 12,055 335,994 49,615 Icelandic Íslenska is 36.22 46,875 1,627,481 125,079 Italian Italiano it 156.64 1,521,366 103,737,609 6,161,959 Japanese 日本語 ja 81.76 1,147,427 72,180,613 3,398,879 Javanese Basa Jawa jv 28.53 55,370 1,475,510 149,523 Georgian ქართული ka 35.71 128,180 3,647,427 373,190 Kazakh Қазақша kk 9.6 224,059 2,681,012 533,818 Kannada ಕನ್ನಡ kn 90.42 24,552 909,505 103,191 Korean 한국어 ko 150.48 452,396 23,960,140 2,092,340 Kurdish Kurdî ku 23.69 25,658 718,786 62,476 Kirghiz Кыргызча ky 0.34 79,403 348,898 104,850 Latin Latina la 12.17 130,339 3,397,358 254,913 Luxembourgish Lëtzebuergesch lb 23.89 56,283 2,169,816 121,341 Limburgish Limburgs li 109.41 12,382 432,559 61,031 Lombard Lumbaart lmo 25.03 38,474 983,862 99,767 Lithuanian Lietuvių lt 22.5 194,701 5,525,591 461,608 Latvian Latviešu lv 78.51 92,419 3,041,630 383,014 Maithili मैथिली mai 12.28 13,321 189,828 32,696 Banyumasan Basa Banyumasan map-bms 9.73 13,344 207,877 28,849 Malagasy Malagasy mg 10.1 91,620 969,076 235,041 Meadow Mari Олык Марий (Olyk Marij) mhr 13.82 10,040 175,909 23,753 Minangkabau Bahaso Minangkabau min 1.007 222,653 1,631,097 321,938 Macedonian Македонски mk 105.12 99,739 3,825,296 450,792 Malayalam മലയാളം ml 212.3 63,207 3,062,212 393,234 Mongolian Монгол mn 62.02 18,580 573,622 69,516 Marathi मराठी mr 75.4 53,218 1,675,302 221,084 Hill Mari Кырык Мары (Kyryk Mary) mrj 1.89 10,269 94,690 16,082 Malay Bahasa Melayu ms 15.63 325,947 4,550,481 898,622 Burmese language မြန်မာဘာသာ my 6.98 44,019 457,168 97,820 Mazandarani مَزِروني mzn 7.51 12,897 147,686 28,395 Neapolitan Nnapulitano nap 17.3 14,585 654,112 26,882 Low Saxon Plattdüütsch nds 12.62 46,302 860,915 103,273 Nepali नेपाली ne 26.29 31,867 718,716 89,545 Newari नेवारी new 12.71 72,221 844,819 196,380 Dutch Nederlands nl 15.15 1,963,460 53,462,140 4,073,118 Norwegian (Nynorsk) Nynorsk nn 17.18 142,905 3,122,742 337,697 Norwegian (Bokmål) Norsk (Bokmål) no 40.82 507,166 19,319,223 1,370,066 Occitan Occitan oc 6.73 85,494 2,106,136 143,343 Oriya ଓଡ଼ିଆ or 61.93 14,824 364,585 63,517 Ossetian Иронау os 86 11,494 472,575 44,030 Punjabi ਪੰਜਾਬੀ pa 25.89 31,168 459,817 108,033 Polish Polski pl 29.67 1,331,981 56,241,334 3,010,811 Piedmontese Piemontèis pms 2.43 64,437 841,982 98,829 Western Panjabi شاہ مکھی پنجابی pnb 2.42 47,763 527,677 75,987 Portuguese Português pt 164.03 1,002,410 54,647,305 4,812,075 Quechua Runa Simi qu 27.34 21,092 635,976 52,901 Romanian Română ro 113.93 393,747 12,670,784 2,107,968 Russian Русский ru 133.01 1,540,900 98,923,083 5,869,795 Sanskrit संस्कृतम् sa 126.5 11,385 443,066 57,523 Sakha Саха тыла sah 49.72 11,993 345,663 41,181 Sicilian Sicilianu scn 16.46 26,064 725,124 55,250 Scots Scots sco 24.75 53,855 697,860 195,770 Sindhi سنڌي، سندھی ، सिन्ध sd 17.07 11,181 142,813 33,579 Serbo-Croatian Srpskohrvatski / Српскохрватски sh 762.23 448,851 40,867,264 4,611,645 Sinhalese සිංහල si 81.24 15,053 433,299 69,323 Simple English Simple English simple 78.13 144,691 6,480,227 499,925 Slovak Slovenčina sk 19.26 229,256 6,798,485 502,861 Slovenian Slovenščina sl 25.07 164,117 5,110,894 391,555 Albanian Shqip sq 31.54 76,282 1,956,690 219,907 Serbian Српски sr 150.35 618,613 21,772,640 3,778,618 Sundanese Basa Sunda su 4.18 41,090 557,045 71,115 Swedish Svenska sv 6.54 3,748,703 45,299,432 7,703,571 Swahili Kiswahili sw 12.78 49,586 1,057,600 105,612 Tamil தமிழ் ta 29.81 121,614 2,686,262 367,085 Telugu తెలుగు te 67.48 70,596 2,625,507 249,286 Tajik Тоҷикӣ tg 4.32 97,065 1,031,950 181,739 Thai ไทย th 261.87 130,704 8,205,722 784,829 Tagalog Tagalog tl 31.23 75,088 1,687,265 230,029 Turkish Türkçe tr 197.49 325,817 20,488,213 1,608,900 Tatar Татарча tt 22.36 84,423 2,362,032 200,812 Ukrainian Українська uk 37.33 898,822 24,821,051 2,715,125 Urdu اردو ur 98.98 145,294 3,854,681 806,474 Uzbek O‘zbek uz 46.3 131,200 2,038,540 625,889 Venetian Vèneto vec 73.69 11,407 598,011 35,146 Vietnamese Tiếng Việt vi 438.07 1,205,751 51,938,793 14,573,945 Volapük Volapük vo 14.19 122,759 3,199,916 252,693 Walloon Walon wa 22.84 14,876 344,476 38,709 Waray-Waray Winaray war 3.51 1,263,537 6,198,924 2,877,207 Wu 吴语 wuu 3.26 18,620 249,239 30,359 Mingrelian მარგალური (Margaluri) xmf 6.9 12,975 137,345 28,496 Yiddish ייִדיש yi 41.18 14,673 539,434 40,459 Yoruba Yorùbá yo 4.9 31,873 518,693 54,801 Chinese 中文 zh 186.7 1,050,839 53,716,944 5,747,501 Min Nan Bân-lâm-gú zh-min-nan 13.18 228,115 1,928,003 741,697 Cantonese 粵語 zh-yue 16.86 72,238 1,286,085 184,598 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	953	94	228	30	82	157	15	164	197	133	7	187	41	42	30	37	197	114	14	46	58	17	19	64	119	257	201	150	22	150
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)