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 902 = 18.61 × 48.46 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 1075 = 155.42 × 6.92.

The Chechen Wikipedia has the smallest depth, at 0.317 = 13.87 × 0.023.

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 No.

Language Language (local) Wiki Depth Articles Edits Total Pages Afrikaans Afrikaans af 29.26 49,560 1,666,089 122,143 Alemannic Alemannisch als 24.91 24,464 827,423 56,319 Amharic አማርኛ am 34.81 14,240 346,442 44,273 Aragonese Aragonés an 73.19 33,050 1,607,660 105,470 Arabic العربية ar 216.13 575,852 28,623,675 3,562,471 Egyptian Arabic مصرى arz 286.31 18,414 805,883 155,105 Asturian Asturianu ast 4.6 74,848 1,535,155 119,670 Azerbaijani Azərbaycanca az 30.9 134,672 4,295,552 347,547 South Azerbaijani تۆرکجه azb 3 76,241 402,965 159,311 Bashkir Башҡорт ba 23.56 42,820 808,672 124,302 Bavarian Boarisch bar 54.75 25,967 688,714 98,705 Samogitian Žemaitėška bat-smg 5.87 16,274 343,224 27,418 Belarusian Беларуская be 32.26 154,209 3,140,921 505,662 Belarusian (Taraškievica) Беларуская (тарашкевіца) be-tarask 32.29 63,109 1,970,811 167,729 Bulgarian Български bg 23.6 242,031 8,493,274 537,942 Bengali বাংলা bn 414.89 58,359 3,006,035 580,916 Bishnupriya Manipuri বিষ্ণুপ্রিয়া মণিপুরী bpy 23.36 25,080 780,462 58,174 Breton Brezhoneg br 13.13 64,660 1,790,124 127,083 Bosnian Bosanski bs 110.07 77,378 2,922,316 363,808 Buginese Basa Ugi bug 1.05 14,114 191,529 18,629 Catalan Català ca 30.18 580,659 19,877,584 1,438,934 Chechen Нохчийн ce 0.32 164,822 2,632,647 189,741 Cebuano Sinugboanong Binisaya ceb 1.12 5,382,877 22,587,167 8,964,390 Sorani کوردی ckb 95.93 21,641 572,068 117,844 Czech Čeština cs 42.03 405,673 16,066,471 1,091,021 Chuvash Чăваш cv 4.59 41,249 628,890 70,943 Welsh Cymraeg cy 32.42 100,593 5,343,386 215,663 Danish Dansk da 66.61 237,725 9,511,524 800,601 German Deutsch de 94.39 2,183,283 176,509,461 6,139,216 Greek Ελληνικά el 65.96 146,939 7,028,307 448,368 English English en 901.86 5,653,672 837,676,658 45,010,363 Esperanto Esperanto eo 17.08 247,082 6,300,194 548,352 Spanish Español es 206.14 1,411,988 107,581,470 6,329,212 Estonian Eesti et 25.47 175,715 4,996,569 438,376 Basque Euskara eu 18.29 292,797 6,216,068 718,585 Persian فارسی fa 176.18 622,304 23,348,634 4,071,699 Finnish Suomi fi 42.25 437,688 17,263,641 1,182,191 Faroese Føroyskt fo 35.95 12,752 347,572 38,051 French Français fr 222.47 1,985,245 148,258,355 9,468,347 West Frisian Frysk fy 28.97 40,076 916,992 117,183 Irish Gaeilge ga 4.91 46,672 889,316 77,147 Scottish Gaelic Gàidhlig gd 20.36 14,693 541,177 30,410 Galician Galego gl 27.67 148,182 4,733,348 364,487 Gujarati ગુજરાતી gu 24.8 27,776 572,157 79,256 Hebrew עברית he 246.06 224,919 23,062,621 935,510 Hindi हिन्दी hi 127.05 124,860 3,795,393 750,837 Croatian Hrvatski hr 25.13 191,751 5,069,983 490,851 Upper Sorbian Hornjoserbsce hsb 26.39 12,808 357,896 32,697 Haitian Krèyol ayisyen ht 0.57 52,214 707,137 64,024 Hungarian Magyar hu 57.69 431,288 19,890,144 1,253,680 Armenian Հայերեն hy 39.17 240,607 5,750,749 803,500 Interlingua Interlingua ia 6.5 20,629 594,424 33,024 Indonesian Bahasa Indonesia id 117.62 430,247 13,891,986 2,349,041 Ido Ido io 5.66 27,603 927,474 41,491 Ilokano Ilokano ilo 71.02 10,975 317,596 46,282 Icelandic Íslenska is 36.43 45,010 1,589,928 119,477 Italian Italiano it 150.94 1,438,447 97,059,784 5,733,697 Japanese 日本語 ja 80.28 1,107,255 68,435,421 3,278,783 Javanese Basa Jawa jv 26.47 54,901 1,440,042 144,309 Georgian ქართული ka 33.78 122,616 3,485,659 347,676 Kazakh Қазақша kk 9.18 221,569 2,618,340 521,111 Kannada ಕನ್ನಡ kn 75.8 23,363 844,007 89,659 Korean 한국어 ko 109.33 417,336 21,273,078 1,622,441 Kurdish Kurdî ku 27.75 23,438 701,709 59,340 Kirghiz Кыргызча ky 0.21 79,781 319,873 100,225 Latin Latina la 11.97 128,512 3,343,804 250,104 Luxembourgish Lëtzebuergesch lb 25.07 53,103 2,107,428 115,293 Limburgish Limburgs li 110.94 12,153 426,783 60,246 Lombard Lumbaart lmo 25.71 37,361 967,420 97,496 Lithuanian Lietuvių lt 22.6 187,953 5,373,160 445,151 Latvian Latviešu lv 81.96 84,751 2,862,141 354,956 Maithili मैथिली mai 11.08 12,474 171,415 29,781 Banyumasan Basa Banyumasan map-bms 9.5 13,322 205,893 28,640 Malagasy Malagasy mg 9.33 84,970 814,442 219,850 Minangkabau Bahaso Minangkabau min 0.902 222,178 1,547,504 317,805 Macedonian Македонски mk 109.64 94,536 3,727,383 431,240 Malayalam മലയാളം ml 220.33 56,469 2,802,823 354,612 Mongolian Монгол mn 53.18 18,057 543,623 62,820 Marathi मराठी mr 73.51 51,419 1,591,787 212,499 Hill Mari Кырык Мары (Kyryk Mary) mrj 1.52 10,266 93,811 15,390 Malay Bahasa Melayu ms 15 315,504 4,335,331 859,726 Burmese language မ္ရန္‌မာစာ my 6 38,495 400,311 80,877 Mazandarani مَزِروني mzn 7.48 12,652 144,830 27,821 Neapolitan Nnapulitano nap 16.49 14,534 649,028 26,446 Low Saxon Plattdüütsch nds 28.72 30,286 817,607 81,545 Nepali नेपाली ne 24.5 30,524 640,244 85,851 Newari नेवारी new 12.72 72,154 843,897 196,217 Dutch Nederlands nl 14.4 1,931,811 51,505,213 3,966,436 Norwegian (Nynorsk) Nynorsk nn 17.56 138,027 3,036,413 328,183 Norwegian (Bokmål) Norsk (Bokmål) no 39.1 488,387 18,484,891 1,297,528 Occitan Occitan oc 6.64 84,578 2,078,998 141,434 Oriya ଓଡ଼ିଆ or 57.34 13,825 314,202 59,307 Ossetian Иронау os 91.47 10,759 466,434 41,425 Punjabi ਪੰਜਾਬੀ pa 24.95 29,130 427,967 99,167 Polish Polski pl 28.07 1,281,498 53,304,444 2,852,153 Piedmontese Piemontèis pms 2.4 64,347 839,565 98,533 Western Panjabi شاہ مکھی پنجابی pnb 1.34 46,479 503,008 65,936 Portuguese Português pt 149.04 997,702 51,960,150 4,635,833 Quechua Runa Simi qu 28.75 20,519 632,393 52,094 Romanian Română ro 109.38 386,080 12,167,938 2,038,941 Russian Русский ru 132.05 1,474,564 92,500,420 5,669,518 Sanskrit संस्कृतम् sa 113.32 11,287 434,958 53,379 Sakha Саха тыла sah 50.28 11,600 340,233 39,695 Sicilian Sicilianu scn 16.43 25,992 722,031 55,091 Scots Scots sco 24.83 51,857 670,750 189,017 Serbo-Croatian Srpskohrvatski / Српскохрватски sh 776.5 443,962 40,802,374 4,596,060 Sinhalese සිංහල si 78.73 14,746 421,523 66,854 Simple English Simple English simple 78.57 134,135 6,103,617 460,821 Slovak Slovenčina sk 18.7 225,916 6,649,076 491,564 Slovenian Slovenščina sl 24.45 161,236 4,983,450 381,935 Albanian Shqip sq 28.79 74,050 1,860,262 206,393 Serbian Српски sr 140.61 607,020 20,487,518 3,641,810 Sundanese Basa Sunda su 4.09 39,582 537,408 68,058 Swedish Svenska sv 5.87 3,783,887 42,840,275 7,658,903 Swahili Kiswahili sw 17.06 42,060 1,029,006 94,777 Tamil தமிழ் ta 27.27 116,172 2,522,777 338,318 Telugu తెలుగు te 56.65 68,944 2,364,821 231,185 Tajik Тоҷикӣ tg 4.27 93,826 996,220 175,146 Thai ไทย th 242.95 124,248 7,611,818 719,779 Tagalog Tagalog tl 24.15 81,365 1,632,038 232,196 Turkish Türkçe tr 206.21 309,224 19,655,494 1,560,338 Tatar Татарча tt 22.64 79,234 2,269,914 187,609 Ukrainian Українська uk 38.69 788,928 22,574,067 2,383,537 Urdu اردو ur 88.39 138,842 3,448,407 745,932 Uzbek O‘zbek uz 46.13 129,190 1,984,060 619,486 Venetian Vèneto vec 72.03 11,175 583,630 34,100 Vietnamese Tiếng Việt vi 322.14 1,173,503 40,211,594 13,275,442 Volapük Volapük vo 14.36 121,046 3,185,053 249,382 Walloon Walon wa 22.57 14,589 333,197 37,994 Waray-Waray Winaray war 3.51 1,263,002 6,188,484 2,875,943 Yiddish ייִדיש yi 40.86 14,385 529,902 39,485 Yoruba Yorùbá yo 4.71 31,640 513,075 53,902 Chinese 中文 zh 173.92 1,007,063 49,359,232 5,399,889 Min Nan Bân-lâm-gú zh-min-nan 12.3 226,643 1,890,154 715,876 Cantonese 粵語 zh-yue 16.86 66,659 1,193,201 169,970 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	902	94	222	28	80	151	14	149	206	132	6	174	39	42	30	39	206	109	14	42	58	17	19	67	118	246	216	109	23	141
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)