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 956 = 18.69 × 51.18 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 = 155.1 × 6.9.

The Chechen Wikipedia has the smallest depth, at 0.182 = 12.18 × 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 34.36 78,991 1,981,101 240,219 Alemannic Alemannisch als 26.43 25,641 899,178 59,570 Amharic አማርኛ am 34 14,636 353,802 45,110 Aragonese Aragonés an 66.48 35,157 1,629,302 109,452 Arabic العربية ar 182.2 815,962 34,930,615 4,970,719 Egyptian Arabic مصرى arz 283.39 20,331 862,775 174,059 Asturian Asturianu ast 4.36 99,538 2,278,313 153,487 Azerbaijani Azərbaycanca az 31.5 146,200 4,689,241 379,790 South Azerbaijani تۆرکجه azb 6.2 137,748 911,980 349,511 Bashkir Башҡорт ba 21.81 48,489 886,365 137,776 Bavarian Boarisch bar 49.76 28,088 711,464 103,747 Samogitian Žemaitėška bat-smg 5.75 16,720 347,075 28,136 Belarusian Беларуская be 29.37 170,146 3,362,890 539,427 Belarusian (Taraškievica) Беларуская (тарашкевіца) be-tarask 33.76 66,897 2,051,660 182,969 Bulgarian Български bg 25.3 252,027 9,448,895 560,844 Bengali বাংলা bn 403.86 67,253 3,445,990 657,703 Bishnupriya Manipuri বিষ্ণুপ্রিয়া মণিপুরী bpy 23.51 25,084 781,496 58,309 Breton Brezhoneg br 12.82 66,669 1,830,892 130,382 Bosnian Bosanski bs 106.51 79,828 2,983,158 369,959 Buginese Basa Ugi bug 1.07 14,124 192,181 18,687 Catalan Català ca 29.84 612,899 21,063,956 1,509,031 Chechen Нохчийн ce 0.18 215,993 2,953,889 242,422 Min Dong Mìng-dĕ̤ng-ngṳ̄ cdo 2.48 14,414 76,748 28,165 Cebuano Sinugboanong Binisaya ceb 1.54 5,347,396 26,788,882 9,250,703 Sorani کوردی ckb 92.49 23,575 616,779 126,089 Czech Čeština cs 45.68 428,165 17,195,429 1,189,152 Chuvash Чăваш cv 5.23 41,971 655,230 74,307 Welsh Cymraeg cy 49.9 104,651 8,192,005 227,977 Danish Dansk da 64.21 249,481 9,905,152 827,170 German Deutsch de 94.01 2,301,803 187,195,833 6,441,936 Greek Ελληνικά el 62.21 162,075 7,513,963 487,784 Emilian-Romagnol Emiliàn e rumagnòl eml 11.06 11,995 130,314 31,651 English English en 956.35 5,853,916 891,949,885 47,732,511 Esperanto Esperanto eo 17.27 258,466 6,579,282 576,433 Spanish Español es 197.37 1,521,154 115,427,488 6,650,914 Estonian Eesti et 23.71 192,041 5,308,908 470,420 Basque Euskara eu 10.27 334,422 6,823,369 670,337 Persian فارسی fa 176.1 675,490 25,999,843 4,336,252 Finnish Suomi fi 42.01 458,830 18,090,676 1,236,302 Faroese Føroyskt fo 35.64 12,971 351,774 38,633 French Français fr 228.48 2,105,272 158,735,745 10,153,472 West Frisian Frysk fy 30.89 42,040 958,483 127,141 Irish Gaeilge ga 4.42 50,839 926,289 82,782 Scottish Gaelic Gàidhlig gd 20.54 14,804 545,265 30,732 Galician Galego gl 33.6 156,557 5,135,448 414,337 Gujarati ગુજરાતી gu 34.81 28,423 659,556 90,561 Hebrew עברית he 257.78 242,928 25,405,867 1,027,195 Hindi हिन्दी hi 153.46 130,895 4,177,778 871,467 Croatian Hrvatski hr 23.07 205,328 5,240,489 514,289 Upper Sorbian Hornjoserbsce hsb 25.66 13,406 365,023 34,187 Haitian Krèyol ayisyen ht 0.55 55,470 726,585 68,082 Hungarian Magyar hu 58.43 450,595 21,261,805 1,303,364 Armenian Հայերեն hy 42.4 248,997 6,312,669 840,638 Interlingua Interlingua ia 6.17 21,655 609,072 34,442 Indonesian Bahasa Indonesia id 118.3 462,164 15,036,306 2,519,991 Ido Ido io 5.59 28,413 944,939 42,690 Ilokano Ilokano ilo 64.18 12,200 338,478 49,622 Icelandic Íslenska is 35.92 47,148 1,630,361 125,572 Italian Italiano it 158.02 1,528,139 104,528,629 6,210,562 Japanese 日本語 ja 81.91 1,150,828 72,513,293 3,409,242 Javanese Basa Jawa jv 28.49 55,616 1,477,997 150,266 Georgian ქართული ka 35.63 128,840 3,661,226 374,973 Kazakh Қазақша kk 9.64 224,180 2,686,227 534,762 Kannada ಕನ್ನಡ kn 90.39 24,644 911,227 103,674 Korean 한국어 ko 149.8 456,097 24,126,752 2,105,008 Kurdish Kurdî ku 23.63 25,770 720,791 62,725 Kirghiz Кыргызча ky 0.34 79,402 349,254 104,875 Latin Latina la 12.22 130,440 3,402,827 255,370 Luxembourgish Lëtzebuergesch lb 23.82 56,513 2,176,147 121,748 Limburgish Limburgs li 109.59 12,393 433,730 61,078 Lombard Lumbaart lmo 25.02 38,533 985,126 99,918 Lithuanian Lietuvių lt 22.46 195,239 5,535,409 462,735 Latvian Latviešu lv 78.36 93,024 3,053,678 385,655 Maithili मैथिली mai 12.34 13,348 190,299 32,822 Banyumasan Basa Banyumasan map-bms 9.78 13,348 208,023 28,906 Malagasy Malagasy mg 10.1 91,674 969,646 235,140 Meadow Mari Олык Марий (Olyk Marij) mhr 13.91 10,045 176,098 23,825 Minangkabau Bahaso Minangkabau min 1.012 222,691 1,633,386 322,181 Macedonian Македонски mk 103.89 100,623 3,834,854 453,189 Malayalam മലയാളം ml 211.93 63,493 3,071,646 394,928 Mongolian Монгол mn 63.24 18,659 576,977 70,542 Marathi मराठी mr 75.41 53,345 1,678,908 221,677 Hill Mari Кырык Мары (Kyryk Mary) mrj 1.91 10,269 94,738 16,123 Malay Bahasa Melayu ms 15.69 326,540 4,564,081 901,283 Burmese language မြန်မာဘာသာ my 7.07 44,164 459,378 98,532 Mazandarani مَزِروني mzn 7.43 12,974 148,088 28,489 Neapolitan Nnapulitano nap 10.16 14,529 657,810 23,231 Low Saxon Plattdüütsch nds 11.62 48,200 864,204 105,637 Nepali नेपाली ne 24.16 32,928 725,748 89,890 Newari नेवारी new 12.72 72,223 844,916 196,398 Dutch Nederlands nl 15.24 1,966,477 53,646,955 4,084,660 Norwegian (Nynorsk) Nynorsk nn 17.13 143,300 3,127,365 338,426 Norwegian (Bokmål) Norsk (Bokmål) no 41.01 508,792 19,394,026 1,376,998 Occitan Occitan oc 6.74 85,546 2,108,989 143,468 Oriya ଓଡ଼ିଆ or 62.01 14,881 366,502 63,757 Ossetian Иронау os 85.98 11,526 473,070 44,190 Punjabi ਪੰਜਾਬੀ pa 26.8 31,240 475,509 108,488 Polish Polski pl 29.78 1,337,045 56,446,257 3,026,545 Piedmontese Piemontèis pms 2.43 64,465 842,156 98,866 Western Panjabi شاہ مکھی پنجابی pnb 2.42 47,830 528,128 76,082 Portuguese Português pt 164.43 1,005,421 54,930,217 4,827,401 Quechua Runa Simi qu 27.18 21,152 636,140 52,977 Romanian Română ro 115.02 394,413 12,789,882 2,114,268 Russian Русский ru 133.93 1,543,601 99,433,668 5,892,022 Sanskrit संस्कृतम् sa 127.39 11,387 443,594 57,765 Sakha Саха тыла sah 49.88 12,010 346,179 41,312 Sicilian Sicilianu scn 16.46 26,065 725,222 55,260 Scots Scots sco 24.8 53,922 699,994 196,009 Sindhi سنڌي، سندھی ، सिन्ध sd 16.99 11,255 143,585 33,747 Serbo-Croatian Srpskohrvatski / Српскохрватски sh 761.5 449,118 40,870,656 4,612,687 Sinhalese සිංහල si 79 15,276 434,904 69,588 Simple English Simple English simple 78.39 145,399 6,512,934 503,242 Slovak Slovenčina sk 19.31 229,618 6,811,602 504,067 Slovenian Slovenščina sl 25.08 164,350 5,119,673 392,151 Albanian Shqip sq 31.33 76,746 1,962,781 220,826 Serbian Српски sr 150.53 619,631 21,843,139 3,783,704 Sundanese Basa Sunda su 4.04 41,852 558,635 72,079 Swedish Svenska sv 6.61 3,746,941 45,572,198 7,708,221 Swahili Kiswahili sw 12.52 50,296 1,060,899 106,759 Tamil தமிழ் ta 30.08 122,217 2,726,405 368,737 Telugu తెలుగు te 68.22 70,681 2,645,805 250,210 Tajik Тоҷикӣ tg 4.32 97,124 1,032,829 181,874 Thai ไทย th 264.5 130,996 8,269,998 789,073 Tagalog Tagalog tl 31.13 75,276 1,689,858 230,330 Turkish Türkçe tr 196.82 327,049 20,543,685 1,612,509 Tatar Татарча tt 22.33 84,902 2,369,374 202,048 Ukrainian Українська uk 37.52 903,921 25,051,291 2,732,700 Urdu اردو ur 99.15 145,740 3,870,552 809,337 Uzbek O‘zbek uz 46.41 131,144 2,040,320 625,999 Venetian Vèneto vec 69.93 11,713 599,251 35,580 Vietnamese Tiếng Việt vi 449.26 1,206,293 52,949,564 14,659,671 Volapük Volapük vo 14.18 122,775 3,200,039 252,711 Walloon Walon wa 22.92 14,901 345,562 38,807 Waray-Waray Winaray war 3.51 1,263,565 6,199,473 2,877,271 Wu 吴语 wuu 3.04 19,241 250,364 31,046 Mingrelian მარგალური (Margaluri) xmf 6.89 13,006 137,582 28,553 Yiddish ייִדיש yi 41.87 14,678 540,731 40,750 Yoruba Yorùbá yo 4.9 31,885 518,805 54,823 Chinese 中文 zh 186.86 1,056,112 54,075,922 5,773,231 Min Nan Bân-lâm-gú zh-min-nan 13.18 228,147 1,928,477 741,748 Cantonese 粵語 zh-yue 16.74 73,160 1,295,977 186,785 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	956	94	228	30	82	158	15	164	197	134	7	187	41	42	30	38	197	115	14	46	58	17	19	64	118	258	182	150	22	151
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)