Wikipedia article depth

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The editing depth, or simply depth, of Wikipedia is one of several possible rough indicators of the encyclopedia's collaborative quality. 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:

Depth = \frac{Edits}{Articles} \cdot \frac{Non-Articles}{Articles} \cdot (1 - \frac{Articles}{Total})

The depth can be simplified to the equivalent formula below:

Depth = \frac{Edits}{Total} \cdot {(\frac{Non-Articles}{Articles})}^{2}

Non-Articles are user pages, redirects, images, "project" pages, categories, templates, and all talk pages.
Total is simply Non-Articles + Articles.

Among editions with at least 10,000 articles the English Wikipedia has the most depth, at 1381.7 ( = 20.73 × 66.65).

Among editions with at least 10,000 articles, the Ladin Wikipedia has the least depth, at 0.002 ( = 1.33 × 0.002).

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.

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)).^[1]

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 (Purge).

N.B.: Default sorting is by language code, but it is possible to sort the table by any column.

Language	Language (local)	Wiki	Depth	Articles	Edits	Total Pages
Acehnese	Acehnese	ace	7.67	13,083	158,732	28,418
Afrikaans	Afrikaans	af	48.36	143,011	3,275,205	550,891
Alemannic	Alemannisch	als	27.1	31,853	1,086,895	75,580
Amharic	አማርኛ	am	32.92	15,735	394,585	46,844
Aragonese	Aragonés	an	33.13	88,181	2,482,538	248,890
Arabic	العربية	ar	290.5	1,339,087	77,036,102	9,246,202
Moroccan Arabic	داريجة	ary	102.82	20,522	592,461	110,318
Egyptian Arabic	مصرى	arz	0.89	1,634,034	13,281,633	2,271,717
Assamese	অসমীয়া	as	78.14	26,050	649,212	128,491
Asturian	Asturianu	ast	11.57	141,723	4,770,304	252,650
Kotava	Kotava	avk	0.19	29,906	147,862	36,384
Azerbaijani	Azərbaycanca	az	62	218,921	9,153,848	693,560
South Azerbaijani	تۆرکجه	azb	5.2	244,936	1,594,711	580,886
Bashkir	Башҡорт	ba	24.99	64,317	1,307,677	185,379
Balinese	Bali	ban	3.62	39,493	271,983	80,326
Bavarian	Boarisch	bar	73.07	27,242	854,846	111,248
Samogitian	Žemaitėška	bat-smg	6.64	17,277	362,978	30,097
Central Bicolano	Bikol	bcl	10.04	22,662	311,878	51,981
Belarusian	Беларуская	be	21.63	270,215	5,230,818	744,187
Belarusian (Taraškievica)	Беларуская (тарашкевіца)	be-tarask	37.24	91,529	2,691,498	267,662
Bulgarian	Български	bg	29.62	312,895	13,047,646	710,233
Bengali	বাংলা	bn	267.15	192,396	9,225,854	1,430,783
Bishnupriya Manipuri	বিষ্ণুপ্রিয়া মণিপুরী	bpy	32.96	25,097	895,851	63,443
Breton	Brezhoneg	br	7.95	91,934	2,198,561	162,387
Bosnian	Bosanski	bs	86.46	99,003	3,926,184	388,638
Buginese	Basa Ugi	bug	0.84	15,975	211,165	20,552
Catalan	Català	ca	43.96	807,469	39,038,265	2,027,575
Chechen	Нохчийн	ce	20.16	871,387	27,488,249	1,899,920
Min Dong	Mìng-dĕ̤ng-ngṳ̄	cdo	3.21	16,774	106,148	33,724
Cebuano	Sinugboanong Binisaya	ceb	2.32	6,116,217	37,241,957	11,236,900
Sorani	کوردی	ckb	28.7	85,204	1,699,645	265,662
Crimean Tatar	Qırımtatarca	crh	3.97	29,792	246,192	58,801
Czech	Čeština	cs	49.97	601,114	26,338,847	1,671,569
Chuvash	Чăваш	cv	8.44	59,272	876,904	124,014
Welsh	Cymraeg	cy	25.39	284,841	15,733,089	554,205
Danish	Dansk	da	56.81	316,582	12,365,231	992,686
German	Deutsch	de	93.72	3,163,576	269,430,705	8,651,552
Zazaki	Zazaki	diq	2.01	44,661	561,391	66,443
Greek	Ελληνικά	el	49.32	275,063	11,887,181	765,158
Emilian-Romagnol	Emiliàn e rumagnòl	eml	12.43	14,350	174,595	37,936
English	English	en	1381.68	7,259,352	1,379,028,144	66,525,933
Esperanto	Esperanto	eo	16.77	390,426	9,485,225	876,515
Spanish	Español	es	189.72	2,147,905	175,688,324	8,750,424
Estonian	Eesti	et	21.7	262,759	7,257,432	620,724
Basque	Euskara	eu	15.49	500,038	11,878,703	1,098,481
Persian	فارسی	fa	153.77	1,101,137	44,848,166	6,162,751
Finnish	Suomi	fi	36.45	627,872	24,301,782	1,600,683
Faroese	Føroyskt	fo	33.84	14,219	388,996	41,107
French	Français	fr	283.91	2,788,103	240,554,000	14,203,455
North Frisian	Nordfriisk	frr	11.6	21,632	284,312	53,638
West Frisian	Frysk	fy	26.82	61,180	1,241,758	182,718
Irish	Gaeilge	ga	7.83	64,573	1,329,274	118,548
Scottish Gaelic	Gàidhlig	gd	19.55	16,044	583,080	32,895
Galician	Galego	gl	43.14	248,043	7,751,154	757,245
Gorontalo	Hulontalo	gor	1.21	15,151	69,115	25,201
Gujarati	ગુજરાતી	gu	77.69	30,942	905,117	137,083
Hausa	Hausa / هَوُسَ	ha	0.91	121,587	975,840	170,008
Fiji Hindi	Fiji Hindi	hif	76.69	12,508	338,995	57,698
Hebrew	עברית	he	260.25	408,129	44,086,858	1,701,630
Hindi	हिन्दी	hi	239.02	172,263	6,620,287	1,394,635
Croatian	Hrvatski	hr	20.45	236,321	7,615,226	513,959
Upper Sorbian	Hornjoserbsce	hsb	25.97	14,298	391,606	36,559
Haitian	Krèyol ayisyen	ht	0.85	72,136	888,105	93,810
Hungarian	Magyar	hu	60.82	575,959	29,420,467	1,634,739
Armenian	Հայերեն	hy	63.32	333,058	10,970,081	1,215,119
Interlingua	Interlingua	ia	4.81	30,453	701,691	47,905
Indonesian	Bahasa Indonesia	id	132.58	803,512	30,120,935	4,298,739
Ilokano	Ilokano	ilo	72.74	15,527	406,869	70,748
Ido	Ido	io	6.22	65,274	1,142,062	117,468
Icelandic	Íslenska	is	33.86	60,608	1,980,346	161,233
Italian	Italiano	it	209.84	1,994,137	152,906,276	9,003,959
Japanese	日本語	ja	92.87	1,526,079	111,437,172	4,472,310
Javanese	Basa Jawa	jv	20.42	75,604	1,757,532	187,046
Georgian	ქართული	ka	65.87	201,107	5,562,855	832,514
Kazakh	Қазақша	kk	16.58	245,921	3,687,781	673,974
Kannada	ಕನ್ನಡ	kn	123.44	34,897	1,428,913	167,737
Korean	한국어	ko	162.28	770,347	42,677,113	3,633,989
Kashmiri	کٲشُر	ks	10.07	11,922	155,624	27,962
Kurdish	Kurdî	ku	36.22	92,211	2,099,988	303,003
Kirghiz	Кыргызча	ky	2.27	76,648	664,480	127,138
Latin	Latina	la	15.89	142,647	3,989,792	298,094
Luxembourgish	Lëtzebuergesch	lb	23.46	68,155	2,710,515	144,331
Limburgish	Limburgs	li	87.6	15,222	485,945	68,850
Ligurian	Lìgure	lij	20.72	11,643	274,850	28,801
Ladin	Ladin	lld	0.002	183,228	253,435	191,125
Lombard	Lumbaart	lmo	7.24	80,360	1,333,854	153,793
Lithuanian	Lietuvių	lt	31.56	227,198	7,944,348	568,701
Latvian	Latviešu	lv	68.51	146,838	4,536,742	582,261
Maithili	मैथिली	mai	29.54	14,372	278,224	46,207
Banyumasan	Basa Banyumasan	map-bms	10.11	13,981	222,446	30,415
Malagasy	Malagasy	mg	10.21	104,272	1,152,016	263,691
Meadow Mari	Олык Марий (Olyk Marij)	mhr	21.19	11,328	203,609	31,998
Minangkabau	Bahaso Minangkabau	min	8.035	230,007	3,353,547	475,508
Macedonian	Македонски	mk	66.76	166,004	5,641,357	613,175
Malayalam	മലയാളം	ml	218.27	89,326	4,421,467	558,251
Mongolian	Монгол	mn	70.3	28,660	873,359	116,381
Meitei	ꯃꯤꯇꯩꯂꯣꯟ	mni	1.7	10,531	62,378	17,877
Marathi	मराठी	mr	40.86	104,005	2,725,969	338,165
Hill Mari	Кырык Мары (Kyryk Mary)	mrj	5.93	10,437	108,494	21,846
Malay	Bahasa Melayu	ms	16.61	445,263	6,982,319	1,196,401
Burmese language	မြန်မာဘာသာ	my	7.88	113,367	1,061,107	275,477
Mazandarani	مَزِروني	mzn	4.15	76,201	416,553	177,572
Neapolitan	Nnapulitano	nap	11.25	15,024	675,729	24,647
Low Saxon	Plattdüütsch	nds	8.02	85,980	1,075,670	187,704
Nepali	नेपाली	ne	96.91	30,072	1,386,849	115,508
Newari	नेवारी	new	28.41	75,049	1,126,158	271,447
Dutch	Nederlands	nl	20.04	2,231,130	72,021,844	4,813,360
Norwegian (Nynorsk)	Nynorsk	nn	13.88	181,350	3,673,587	405,928
Norwegian (Bokmål)	Norsk (Bokmål)	no	40.18	694,403	25,976,901	1,877,859
Navajo	Diné bizaad	nv	3.18	22,668	309,012	36,578
Occitan	Occitan	oc	10.57	91,021	2,499,461	167,675
Oriya	ଓଡ଼ିଆ	or	68.34	21,185	597,781	88,617
Ossetian	Иронау	os	50.84	21,761	594,358	77,951
Punjabi	ਪੰਜਾਬੀ	pa	22.03	59,766	849,690	193,696
Polish	Polski	pl	38.5	1,713,563	80,919,155	4,109,657
Piedmontese	Piemontèis	pms	1.77	71,567	885,472	104,199
Western Panjabi	شاہ مکھی پنجابی	pnb	4.27	75,796	710,317	147,027
Pashto	پښتو	ps	32.86	21,365	369,745	77,399
Portuguese	Português	pt	211.38	1,187,480	73,182,507	6,221,196
Quechua	Runa Simi	qu	22.63	24,671	690,154	58,976
Romanian	Română	ro	123.56	550,385	18,046,424	3,076,423
Russian	Русский	ru	166.91	2,126,924	155,708,180	8,575,589
Sanskrit	संस्कृतम्	sa	188.87	12,587	501,322	82,953
Sakha	Саха тыла	sah	32.24	18,285	430,071	55,626
Sicilian	Sicilianu	scn	17.51	26,362	784,925	55,765
Scots	Scots	sco	61.81	34,220	918,290	138,827
Sindhi	سنڌي، سندھی ، सिन्ध	sd	38.11	23,296	428,042	88,799
Serbo-Croatian	Srpskohrvatski / Српскохрватски	sh	751.15	461,992	42,694,561	4,633,006
Shan	လိၵ်ႈတႆး	shn	0.73	47,472	240,876	69,139
Sinhalese	සිංහල	si	156.29	25,829	802,578	177,818
Simple English	Simple English	simple	62.74	286,397	11,029,269	953,322
Slovak	Slovenčina	sk	24.32	262,113	8,382,261	611,167
Slovenian	Slovenščina	sl	32.71	199,493	6,762,705	514,090
Albanian	Shqip	sq	41.1	106,384	3,058,106	330,651
Serbian	Српски	sr	178.66	710,593	31,841,806	4,132,095
Sundanese	Basa Sunda	su	2.65	63,007	719,714	101,505
Swedish	Svenska	sv	19.12	2,629,813	59,735,862	6,391,588
Swahili	Kiswahili	sw	4.73	132,522	1,610,063	244,898
Silesian	Ślůnsko	szl	0.37	61,654	390,221	78,491
Tamil	தமிழ்	ta	39.71	191,819	4,687,604	637,624
Telugu	తెలుగు	te	60.02	130,381	4,856,549	431,447
Tajik	Тоҷикӣ	tg	10.47	119,523	1,491,303	290,132
Thai	ไทย	th	320.62	189,496	13,365,931	1,210,706
Tagalog	Tagalog	tl	138.88	50,775	2,232,424	251,687
Turkish	Türkçe	tr	171.04	710,001	38,405,539	3,521,852
Tatar	Татарча	tt	4.7	709,304	6,093,463	1,462,766
Ukrainian	Українська	uk	68.64	1,440,407	49,002,955	5,403,031
Urdu	اردو	ur	44.8	707,461	12,180,883	3,093,791
Uzbek	O‘zbek	uz	31.25	371,763	6,327,422	1,321,457
Venetian	Vèneto	vec	9.67	69,633	1,230,828	143,609
Vietnamese	Tiếng Việt	vi	104.96	1,305,620	75,640,493	4,606,621
Volapük	Volapük	vo	81.14	57,564	3,341,790	176,852
Walloon	Walon	wa	26.62	13,043	427,788	31,222
Waray-Waray	Winaray	war	4.32	1,267,055	7,742,312	2,870,822
Wu	吴语	wuu	1.74	48,497	401,178	76,399
Mingrelian	მარგალური (Margaluri)	xmf	4.85	22,506	254,343	42,855
Yiddish	ייִדיש	yi	44.8	15,822	601,309	44,694
Yoruba	Yorùbá	yo	3.56	41,394	634,580	66,721
Standard Moroccan Tamazight	ⵜⴰⵎⴰⵣⵉⵖⵜ ⵜⴰⵏⴰⵡⴰⵢⵜ	zgh	42.91	12,306	198,733	54,535
Chinese	中文	zh	220.74	1,564,421	95,095,990	8,522,796
Classical Chinese	古文 / 文言文	zh-classical	196.38	14,802	448,213	123,833
Min Nan	Bân-lâm-gú	zh-min-nan	6.72	434,699	3,290,534	1,080,542
Cantonese	粵語	zh-yue	11.11	154,477	2,481,524	346,976
Zulu	isiZulu	zu	6.71	13,008	132,015	28,722
Language	Language (local)	Wiki	Depth	Articles	Edits	Total Pages

Trends

The following graph and table show how the depth of the largest 30 languages of Wikipedia (on November 2008) have 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	1382	94	284	38	93	210	20	211	190	167	19	221	40	36	44	69	171	124	81	50	61	17	24	57	133	260	291	162	32	179
1 Jul 2026	1366	94	280	37	93	206	20	209	191	167	19	220	42	37	43	68	171	123	99	50	61	17	24	57	134	262	290	164	31	179
1 Jan 2026	1344	94	276	37	93	198	20	207	193	168	19	217	45	37	42	66	186	119	126	50	61	17	24	57	140	267	289	166	31	175
1 Jul 2025	1318	94	271	36	92	193	20	204	195	163	18	213	47	38	41	61	189	126	154	50	60	17	24	57	136	268	285	171	30	174
1 Jan 2025	1288	94	268	35	91	191	19	200	197	161	18	211	48	38	41	60	188	129	188	51	60	17	23	57	138	271	279	166	30	171
1 Jul 2024	1258	94	264	34	91	189	19	197	198	158	18	210	48	38	40	58	175	153	211	51	61	17	23	58	139	270	271	168	29	167
1 Jan 2024	1218	93	261	33	90	187	19	195	199	157	17	207	48	39	40	57	164	154	233	51	61	17	23	58	139	268	264	167	29	163
1 Jul 2023	1193	93	258	33	89	184	18	192	200	154	17	206	47	39	39	55	165	152	257	50	60	16	22	58	131	268	254	167	28	161
1 Jan 2023	1159	93	255	33	88	182	18	186	202	153	17	206	46	39	39	55	154	149	277	50	60	16	22	59	125	264	242	150	28	159
1 July 2022	1130	93	253	33	87	179	18	182	204	154	16	206	46	39	39	55	166	146	15	47	59	16	22	60	116	260	237	154	28	157
1 Jan 2022	1094	92	246	32	86	176	17	179	207	138	14	205	46	39	37	54	175	145	14	47	59	16	21	64	103	257	231	152	27	156
1 July 2021	1072	93	242	32	85	172	17	176	210	137	12	202	46	40	36	53	199	122	14	46	59	16	21	64	103	258	227	153	26	155
1 Jan 2021	1041	94	239	31	84	168	16	175	210	136	9	201	42	40	34	49	203	120	14	45	59	16	21	63	108	259	219	151	24	157
1 July 2020	1009	94	236	30	84	169	16	172	208	136	7	198	42	40	32	44	222	118	14	47	59	17	20	64	109	259	214	152	23	157
1 Jan 2020	985	94	234	30	83	164	16	171	204	137	7	195	41	41	31	39	205	117	14	47	59	17	20	64	109	261	175	149	23	155
1 July 2019	964	94	229	30	82	160	15	166	199	135	7	188	42	42	30	38	200	114	14	46	58	17	19	64	110	260	182	150	23	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

Variants of the metric

Notes

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External links

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