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 1002 = 21.11 × 47.47 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 0.222 = 11.62 × 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 27.9 47,177 1,653,004 112,055 Alemannic Alemannisch als 26.73 23,412 798,855 55,239 Amharic አማርኛ am 38.6 13,865 355,653 44,252 Aragonese Aragonés an 77.24 32,416 1,641,823 104,180 Arabic العربية ar 200.56 543,450 27,883,566 3,116,401 Egyptian Arabic مصرى arz 307.05 17,372 829,041 144,425 Asturian Asturianu ast 4.86 52,177 1,144,375 83,175 Azerbaijani Azərbaycanca az 33.4 126,822 4,313,862 329,507 South Azerbaijani تۆرکجه azb 0.3 47,479 223,548 59,871 Bashkir Башҡорт ba 23.82 40,070 761,223 116,606 Bavarian Boarisch bar 61.15 23,218 651,418 91,125 Samogitian Žemaitėška bat-smg 6.13 16,151 358,202 27,167 Belarusian Беларуская be 32.17 146,788 2,989,349 480,647 Belarusian (Taraškievica) Беларуская (тарашкевіца) be-tarask 33.1 61,507 2,005,616 162,121 Bulgarian Български bg 24.5 235,305 8,561,780 523,192 Bengali বাংলা bn 441.03 52,854 2,849,869 532,774 Bishnupriya Manipuri বিষ্ণুপ্রিয়া মণিপুরী bpy 23.96 25,079 811,483 57,855 Breton Brezhoneg br 14.08 63,157 1,849,582 124,693 Bosnian Bosanski bs 117.72 75,950 3,084,271 355,862 Buginese Basa Ugi bug 1.07 14,131 199,921 18,598 Catalan Català ca 30.69 558,862 19,350,598 1,388,020 Chechen Нохчийн ce 0.22 164,487 2,175,026 187,237 Cebuano Sinugboanong Binisaya ceb 0.79 5,382,720 16,022,167 8,961,090 Sorani کوردی ckb 112.88 19,823 580,239 112,601 Czech Čeština cs 41.36 391,477 15,434,131 1,047,280 Chuvash Чăваш cv 4.5 40,704 633,412 69,246 Welsh Cymraeg cy 51.21 92,603 7,198,662 204,221 Danish Dansk da 66.43 232,258 9,245,574 783,218 German Deutsch de 97.4 2,111,205 174,567,718 5,961,590 Greek Ελληνικά el 68.62 137,724 6,807,943 421,647 English English en 1001.99 5,494,232 914,994,370 43,348,805 Esperanto Esperanto eo 16.91 242,170 6,285,316 531,872 Spanish Español es 201.23 1,359,083 102,367,003 6,043,471 Estonian Eesti et 27.92 162,479 4,892,433 411,454 Basque Euskara eu 18.67 284,437 6,136,275 699,386 Persian فارسی fa 215.25 577,403 26,208,766 3,805,271 Finnish Suomi fi 44.75 423,594 17,666,260 1,144,959 Faroese Føroyskt fo 36.19 12,611 345,185 37,676 French Français fr 218.61 1,919,458 144,059,795 9,021,571 West Frisian Frysk fy 29.96 39,246 929,780 114,699 Irish Gaeilge ga 5.23 44,299 886,403 73,447 Scottish Gaelic Gàidhlig gd 22.13 14,600 552,127 30,829 Galician Galego gl 27.72 141,859 4,627,329 346,129 Gujarati ગુજરાતી gu 19.55 27,432 507,748 73,619 Hebrew עברית he 251.93 214,187 22,713,322 885,402 Hindi हिन्दी hi 119.98 121,639 3,704,064 701,468 Croatian Hrvatski hr 29.45 178,193 5,127,546 471,374 Upper Sorbian Hornjoserbsce hsb 27.97 12,354 367,636 31,471 Haitian Krèyol ayisyen ht 0.55 51,555 702,140 62,985 Hungarian Magyar hu 58.82 418,571 19,889,401 1,210,529 Armenian Հայերեն hy 38.36 233,152 5,480,503 776,773 Interlingua Interlingua ia 6.34 20,561 589,139 32,767 Indonesian Bahasa Indonesia id 124.81 411,910 14,247,883 2,234,128 Ido Ido io 5.77 27,295 918,615 41,174 Ilokano Ilokano ilo 76.59 10,855 327,971 46,703 Icelandic Íslenska is 38.63 43,637 1,624,745 116,150 Italian Italiano it 128.95 1,390,079 97,325,249 4,950,013 Japanese 日本語 ja 79.69 1,080,092 66,947,829 3,182,163 Javanese Basa Jawa jv 27.97 50,311 1,342,441 134,550 Georgian ქართული ka 33.85 118,011 3,477,149 329,306 Kazakh Қазақша kk 9.12 219,681 2,673,640 509,153 Kannada ಕನ್ನಡ kn 62.12 22,256 721,044 81,079 Korean 한국어 ko 113.5 399,672 21,651,758 1,532,468 Kurdish Kurdî ku 29.79 23,058 723,553 58,994 Kirghiz Кыргызча ky 0.18 80,579 309,018 100,315 Latin Latina la 12.06 127,353 3,393,020 246,585 Luxembourgish Lëtzebuergesch lb 27.49 50,485 2,129,247 110,889 Limburgish Limburgs li 114.56 12,048 437,191 59,702 Lombard Lumbaart lmo 30.9 36,273 1,110,243 95,367 Lithuanian Lietuvių lt 22.88 183,370 5,430,089 430,242 Latvian Latviešu lv 81.95 79,487 2,821,073 322,939 Maithili मैथिली mai 7.63 11,848 132,733 26,463 Banyumasan Basa Banyumasan map-bms 8.65 13,297 210,630 27,400 Malagasy Malagasy mg 9.86 84,697 854,098 219,505 Minangkabau Bahaso Minangkabau min 0.886 222,030 1,541,144 316,801 Macedonian Македонски mk 135.77 90,877 4,419,722 415,570 Malayalam മലയാളം ml 233.24 52,509 2,632,846 341,198 Mongolian Монгол mn 48.66 17,586 539,486 57,706 Marathi मराठी mr 75.9 48,795 1,559,710 201,640 Hill Mari Кырык Мары (Kyryk Mary) mrj 1.34 10,265 93,201 15,043 Malay Bahasa Melayu ms 15.83 304,348 4,513,768 820,719 Burmese language မ္ရန္‌မာစာ my 5.32 37,507 385,147 75,928 Mazandarani مَزِروني mzn 6.95 12,567 141,394 27,057 Neapolitan Nnapulitano nap 17.75 14,476 700,644 26,291 Low Saxon Plattdüütsch nds 33.41 26,815 826,934 72,803 Nepali नेपाली ne 23.75 30,151 622,556 84,191 Newari नेवारी new 12.7 72,139 843,005 196,137 Dutch Nederlands nl 13.72 1,913,612 51,296,358 3,857,467 Norwegian (Nynorsk) Nynorsk nn 17.46 135,251 2,986,507 320,348 Norwegian (Bokmål) Norsk (Bokmål) no 37.3 476,809 17,860,418 1,245,957 Occitan Occitan oc 7.02 83,635 2,216,621 139,169 Oriya ଓଡ଼ିଆ or 56.97 13,185 294,202 56,981 Ossetian Иронау os 97.61 10,528 488,843 40,447 Punjabi ਪੰਜਾਬੀ pa 25.01 27,024 401,668 91,538 Polish Polski pl 25.73 1,245,010 50,558,629 2,705,986 Piedmontese Piemontèis pms 2.47 64,203 867,725 98,097 Western Panjabi شاہ مکھی پنجابی pnb 1.24 45,265 519,724 62,744 Portuguese Português pt 145.65 980,205 51,171,713 4,480,623 Quechua Runa Simi qu 31.92 20,288 665,306 52,481 Romanian Română ro 87.48 379,696 11,720,811 1,753,219 Russian Русский ru 145.96 1,427,504 100,714,675 5,433,242 Sanskrit संस्कृतम् sa 101.85 11,192 425,676 49,840 Sakha Саха тыла sah 52.04 11,419 357,755 38,411 Sicilian Sicilianu scn 18.31 25,674 759,651 55,325 Scots Scots sco 25.62 46,827 633,389 169,421 Serbo-Croatian Srpskohrvatski / Српскохрватски sh 788.63 440,276 40,813,787 4,583,805 Sinhalese සිංහල si 86.91 13,845 417,425 64,634 Simple English Simple English simple 75.64 128,630 5,810,835 434,565 Slovak Slovenčina sk 18.56 223,199 6,590,158 483,754 Slovenian Slovenščina sl 24.95 158,559 5,061,214 373,819 Albanian Shqip sq 30.07 69,420 1,921,918 188,698 Serbian Српски sr 137.73 357,344 15,873,427 1,749,707 Sundanese Basa Sunda su 4.22 38,824 551,331 66,514 Swedish Svenska sv 5.56 3,789,487 41,388,416 7,626,717 Swahili Kiswahili sw 21.54 38,105 1,057,660 89,570 Tamil தமிழ் ta 26.22 113,499 2,513,102 321,279 Telugu తెలుగు te 50.73 67,672 2,196,068 220,359 Tajik Тоҷикӣ tg 1.94 116,370 946,476 188,714 Thai ไทย th 243.95 119,625 7,617,051 676,408 Tagalog Tagalog tl 22.32 84,363 1,686,642 232,277 Turkish Türkçe tr 221.11 300,152 20,192,774 1,527,833 Tatar Татарча tt 25.11 73,049 2,231,625 175,770 Ukrainian Українська uk 38.69 741,751 21,446,238 2,229,394 Urdu اردو ur 170.15 124,566 5,677,956 691,680 Uzbek O‘zbek uz 61.76 129,088 2,668,470 616,832 Venetian Vèneto vec 76.49 10,986 602,630 33,712 Vietnamese Tiếng Việt vi 128.28 1,162,428 32,192,495 7,529,706 Volapük Volapük vo 15.12 120,625 3,313,203 249,284 Walloon Walon wa 22.52 14,620 337,871 37,837 Waray-Waray Winaray war 3.57 1,262,912 6,298,552 2,874,192 Yiddish ייִדיש yi 43.29 14,129 542,519 39,081 Yoruba Yorùbá yo 5.41 31,593 563,779 54,423 Chinese 中文 zh 175.31 968,319 47,803,375 5,194,712 Min Nan Bân-lâm-gú zh-min-nan 12.29 224,769 1,890,897 706,447 Cantonese 粵語 zh-yue 18.91 61,288 1,173,308 159,577 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	1002	97	219	26	80	129	14	146	201	146	6	175	37	45	31	39	221	87	15	41	59	17	19	66	125	252	201	114	23	138
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)