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 = 18.71 × 51.5 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 1063 = 154.93 × 6.86.

The Chechen Wikipedia has the smallest depth, at 0.183 = 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 33.36 81,812 2,003,592 248,098 Alemannic Alemannisch als 26.98 25,858 910,773 60,465 Amharic አማርኛ am 33.18 14,773 354,369 45,146 Aragonese Aragonés an 67.12 35,222 1,632,837 110,182 Arabic العربية ar 184.82 841,221 36,113,369 5,167,078 Egyptian Arabic مصرى arz 286.48 20,456 869,533 176,405 Asturian Asturianu ast 4.51 99,589 2,321,324 154,048 Azerbaijani Azərbaycanca az 31.9 147,618 4,775,836 384,270 South Azerbaijani تۆرکجه azb 5.5 151,878 956,911 373,621 Bashkir Башҡорт ba 21.86 49,014 894,603 139,499 Bavarian Boarisch bar 49.47 28,316 715,668 104,368 Samogitian Žemaitėška bat-smg 5.75 16,742 347,342 28,176 Belarusian Беларуская be 29.14 171,952 3,386,057 544,039 Belarusian (Taraškievica) Беларуская (тарашкевіца) be-tarask 34.16 67,423 2,063,087 185,616 Bulgarian Български bg 25.34 253,130 9,508,364 563,264 Bengali বাংলা bn 393.32 69,105 3,506,084 666,770 Bishnupriya Manipuri বিষ্ণুপ্রিয়া মণিপুরী bpy 23.53 25,085 781,585 58,323 Breton Brezhoneg br 12.78 66,915 1,835,126 130,765 Bosnian Bosanski bs 106.04 80,112 2,989,398 370,552 Buginese Basa Ugi bug 1.07 14,124 192,252 18,688 Catalan Català ca 30.11 615,804 21,331,711 1,516,937 Chechen Нохчийн ce 0.18 216,062 2,957,620 242,543 Min Dong Mìng-dĕ̤ng-ngṳ̄ cdo 2.49 14,608 77,910 28,568 Cebuano Sinugboanong Binisaya ceb 1.62 5,357,930 27,586,848 9,329,370 Sorani کوردی ckb 92.56 23,810 623,448 127,336 Czech Čeština cs 46.23 430,227 17,399,060 1,197,687 Chuvash Чăваш cv 5.26 42,002 655,846 74,474 Welsh Cymraeg cy 52.3 105,171 8,604,567 229,341 Danish Dansk da 64.21 250,457 9,953,004 830,014 German Deutsch de 94.06 2,316,419 188,584,771 6,481,258 Greek Ελληνικά el 61.41 164,271 7,578,655 492,415 Emilian-Romagnol Emiliàn e rumagnòl eml 11.02 12,067 131,191 31,779 English English en 963.27 5,877,849 898,949,182 48,057,924 Esperanto Esperanto eo 17.28 260,602 6,633,333 581,315 Spanish Español es 198.97 1,529,126 116,520,263 6,702,060 Estonian Eesti et 23.02 196,208 5,360,854 476,988 Basque Euskara eu 10.56 336,415 6,978,033 677,010 Persian فارسی fa 177.22 681,197 26,436,640 4,366,744 Finnish Suomi fi 41.97 461,354 18,187,398 1,242,638 Faroese Føroyskt fo 35.12 13,092 353,368 38,804 French Français fr 228.96 2,118,720 159,985,838 10,222,714 West Frisian Frysk fy 30.8 42,375 965,083 128,040 Irish Gaeilge ga 4.41 51,163 930,984 83,300 Scottish Gaelic Gàidhlig gd 20.64 14,828 549,039 30,777 Galician Galego gl 33.84 157,266 5,173,188 417,013 Gujarati ગુજરાતી gu 35.42 28,488 663,613 91,417 Hebrew עברית he 259.56 245,494 25,724,096 1,041,210 Hindi हिन्दी hi 156.2 131,672 4,223,525 884,947 Croatian Hrvatski hr 22.89 207,023 5,268,202 517,455 Upper Sorbian Hornjoserbsce hsb 25.64 13,426 365,319 34,237 Haitian Krèyol ayisyen ht 0.54 56,043 728,490 68,677 Hungarian Magyar hu 58.29 453,533 21,401,722 1,310,299 Armenian Հայերեն hy 41.77 252,175 6,388,642 844,870 Interlingua Interlingua ia 6.17 21,804 611,910 34,708 Indonesian Bahasa Indonesia id 109.89 483,284 15,251,746 2,558,048 Ido Ido io 5.55 28,501 946,237 42,782 Ilokano Ilokano ilo 62.91 12,362 339,588 49,975 Icelandic Íslenska is 36.03 47,426 1,636,067 126,629 Italian Italiano it 160.11 1,537,103 105,782,858 6,273,676 Japanese 日本語 ja 82.15 1,156,760 73,049,463 3,428,006 Javanese Basa Jawa jv 28.05 56,308 1,483,423 151,658 Georgian ქართული ka 35.49 130,055 3,684,737 378,319 Kazakh Қазақша kk 9.71 224,546 2,695,796 536,754 Kannada ಕನ್ನಡ kn 90.99 24,776 916,624 104,617 Korean 한국어 ko 150.34 459,869 24,415,155 2,122,337 Kurdish Kurdî ku 23.45 25,987 723,609 63,169 Kirghiz Кыргызча ky 0.34 79,417 349,865 104,922 Latin Latina la 12.31 130,693 3,414,782 256,354 Luxembourgish Lëtzebuergesch lb 23.79 56,732 2,183,943 122,177 Limburgish Limburgs li 109.83 12,405 434,311 61,211 Lombard Lumbaart lmo 24.94 38,637 986,280 100,119 Lithuanian Lietuvių lt 22.49 195,777 5,557,698 464,086 Latvian Latviešu lv 72.28 97,217 3,075,923 392,433 Maithili मैथिली mai 12.66 13,379 192,240 33,149 Banyumasan Basa Banyumasan map-bms 9.79 13,354 208,119 28,934 Malagasy Malagasy mg 10.09 91,765 970,582 235,301 Meadow Mari Олык Марий (Olyk Marij) mhr 14.07 10,046 176,440 23,920 Minangkabau Bahaso Minangkabau min 1.019 222,810 1,639,018 322,594 Macedonian Македонски mk 103.48 101,149 3,846,692 455,035 Malayalam മലയാളം ml 211.27 63,982 3,085,959 397,932 Mongolian Монгол mn 65.67 18,676 580,996 71,930 Marathi मराठी mr 75.4 53,572 1,684,433 222,722 Hill Mari Кырык Мары (Kyryk Mary) mrj 1.96 10,269 94,851 16,212 Malay Bahasa Melayu ms 15.77 327,369 4,585,758 904,930 Burmese language မြန်မာဘာသာ my 7.23 44,436 463,049 99,949 Mazandarani مَزِروني mzn 7.35 13,089 148,603 28,675 Neapolitan Nnapulitano nap 10.22 14,530 657,974 23,264 Low Saxon Plattdüütsch nds 10.7 50,381 871,437 108,540 Nepali नेपाली ne 24.74 33,030 733,205 90,870 Newari नेवारी new 12.72 72,230 844,986 196,421 Dutch Nederlands nl 15.36 1,970,233 53,934,061 4,098,608 Norwegian (Nynorsk) Nynorsk nn 15.73 149,001 3,142,335 344,713 Norwegian (Bokmål) Norsk (Bokmål) no 41.43 510,788 19,506,180 1,387,721 Occitan Occitan oc 6.76 85,723 2,114,724 143,876 Oriya ଓଡ଼ିଆ or 61.82 14,978 369,177 64,018 Ossetian Иронау os 85.37 11,619 474,071 44,517 Punjabi ਪੰਜਾਬੀ pa 27.03 31,393 479,045 109,379 Polish Polski pl 30.14 1,342,804 56,756,746 3,052,397 Piedmontese Piemontèis pms 2.43 64,463 842,437 98,916 Western Panjabi شاہ مکھی پنجابی pnb 2.43 47,931 529,235 76,276 Portuguese Português pt 165.83 1,008,625 55,404,759 4,852,436 Quechua Runa Simi qu 26.76 21,307 636,495 53,164 Romanian Română ro 114.04 398,612 12,891,589 2,128,124 Russian Русский ru 134.43 1,552,271 100,359,059 5,925,419 Sanskrit संस्कृतम् sa 128.5 11,393 444,139 58,106 Sakha Саха тыла sah 50.13 12,037 346,885 41,525 Sicilian Sicilianu scn 16.46 26,053 725,544 55,215 Scots Scots sco 24.79 54,138 703,377 196,683 Sindhi سنڌي، سندھی ، सिन्ध sd 17.17 11,505 147,078 34,645 Serbo-Croatian Srpskohrvatski / Српскохрватски sh 760.73 449,415 40,876,551 4,613,898 Sinhalese සිංහල si 80.43 15,259 436,825 70,066 Simple English Simple English simple 78.64 146,540 6,564,875 508,055 Slovak Slovenčina sk 19.39 230,136 6,835,029 505,809 Slovenian Slovenščina sl 25.27 164,731 5,147,088 393,785 Albanian Shqip sq 31.35 77,156 1,973,891 222,056 Serbian Српски sr 150.94 621,269 21,961,268 3,793,552 Sundanese Basa Sunda su 2.94 50,044 575,053 82,528 Swedish Svenska sv 6.68 3,748,021 45,925,477 7,719,797 Swahili Kiswahili sw 11.91 51,686 1,066,040 108,633 Tamil தமிழ் ta 30.38 122,690 2,761,795 370,291 Telugu తెలుగు te 70.21 70,847 2,674,312 253,690 Tajik Тоҷикӣ tg 4.33 97,550 1,036,608 182,810 Thai ไทย th 266.31 131,869 8,350,437 796,485 Tagalog Tagalog tl 31.4 75,438 1,699,943 231,419 Turkish Türkçe tr 199.57 329,987 20,679,391 1,644,649 Tatar Татарча tt 22.29 85,898 2,378,898 204,925 Ukrainian Українська uk 37.9 915,782 25,456,931 2,778,175 Urdu اردو ur 100.49 146,913 3,911,867 822,001 Uzbek O‘zbek uz 46.45 131,226 2,043,560 626,388 Venetian Vèneto vec 65.36 12,130 601,610 36,177 Vietnamese Tiếng Việt vi 458.43 1,219,649 54,392,443 14,876,476 Volapük Volapük vo 14.19 122,716 3,200,286 252,613 Walloon Walon wa 22.94 14,955 347,156 38,943 Waray-Waray Winaray war 3.51 1,263,597 6,200,820 2,877,355 Wu 吴语 wuu 2.66 20,330 252,246 32,172 Mingrelian მარგალური (Margaluri) xmf 6.87 13,051 138,055 28,629 Yiddish ייִדיש yi 41.98 14,735 542,536 40,973 Yoruba Yorùbá yo 4.91 31,882 519,091 54,843 Chinese 中文 zh 188.11 1,063,127 54,673,517 5,820,766 Min Nan Bân-lâm-gú zh-min-nan 13.17 228,229 1,929,590 741,873 Cantonese 粵語 zh-yue 16.79 73,434 1,305,636 187,468 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	260	185	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)