1996 – 2025 Long-Term Research Metrics

Global Country Research Rankings

Evaluating and comparing national scientific publication output, total citations, and academic impact across countries and territories (1996 – 2025)

Top 3 Leading Research Nations Worldwide (2025)

Global Rank #1

🇺🇸United States

Northern America

Documents17,968,858

Total Citations617,838,810

H-Index3388

Global Rank #2

🇨🇳China

Asiatic Region

Documents13,093,955

Total Citations216,481,059

H-Index1595

Global Rank #3

🇬🇧United Kingdom

Western Europe

Documents5,414,348

Total Citations176,516,471

H-Index2183

Evaluation Year:

Geographic Region:

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Showing 1 – 50 of 243 countries (Year 2025)

Rank	Country / Territory	Region	Documents	Citable Docs	Total Citations	Self-Citations	Cites / Doc	H-Index
#1	🇺🇸United States	Northern America	17,968,858	15,266,318	617,838,810	243,153,029	34.38	3388
#2	🇨🇳China	Asiatic Region	13,093,955	12,824,976	216,481,059	132,545,835	16.53	1595
#3	🇬🇧United Kingdom	Western Europe	5,414,348	4,408,772	176,516,471	34,553,480	32.60	2183
#4	🇩🇪Germany	Western Europe	4,579,330	4,119,750	134,068,585	27,969,588	29.28	1920
#5	🇯🇵Japan	Asiatic Region	3,786,488	3,578,817	82,899,340	18,351,843	21.89	1438
#6	🇮🇳India	Asiatic Region	3,746,783	3,335,152	53,153,702	18,758,940	14.19	1001
#7	🇫🇷France	Western Europe	3,061,665	2,792,844	90,008,914	15,552,400	29.40	1705
#8	🇮🇹Italy	Western Europe	2,885,935	2,568,060	76,815,736	16,019,564	26.62	1505
#9	🇨🇦Canada	Northern America	2,735,737	2,394,678	91,665,429	13,460,754	33.51	1764
#10	🇦🇺Australia	Pacific Region	2,291,634	1,975,694	73,963,977	12,233,662	32.28	1584
#11	🇪🇸Spain	Western Europe	2,257,758	2,052,290	58,430,814	10,763,027	25.88	1388
#12	🇷🇺Russian Federation	Eastern Europe	1,937,079	1,876,659	19,377,299	6,174,334	10.00	853
#13	🇰🇷South Korea	Asiatic Region	1,833,781	1,769,733	40,234,865	6,383,822	21.94	1071
#14	🇧🇷Brazil	Latin America	1,633,892	1,529,054	28,905,616	8,072,753	17.69	910
#15	🇳🇱Netherlands	Western Europe	1,512,814	1,335,185	59,680,596	7,359,454	39.45	1574
#16	🇨🇭Switzerland	Western Europe	1,130,609	1,012,702	45,174,475	4,768,553	39.96	1458
#17	🇹🇷Turkey	Middle East	1,110,204	1,020,574	17,590,307	3,351,101	15.84	694
#18	🇵🇱Poland	Eastern Europe	1,105,845	1,037,818	18,121,124	3,640,067	16.39	842
#19	🇮🇷Iran	Middle East	1,048,270	1,010,677	18,408,421	4,861,823	17.56	594
#20	🇸🇪Sweden	Western Europe	1,019,716	923,872	37,204,577	4,369,139	36.49	1306
#21	🇹🇼Taiwan	Asiatic Region	977,147	933,778	20,811,730	2,922,692	21.30	784
#22	🇧🇪Belgium	Western Europe	832,555	746,747	28,780,548	2,909,095	34.57	1207
#23	🇩🇰Denmark	Western Europe	650,511	581,571	25,075,532	2,713,548	38.55	1147
#24	🇦🇹Austria	Western Europe	633,632	565,319	19,415,580	1,959,270	30.64	998
#25	🇲🇾Malaysia	Asiatic Region	614,709	576,613	10,113,105	1,824,288	16.45	615
#26	🇮🇱Israel	Middle East	573,266	513,402	18,859,268	2,011,355	32.90	1019
#27	🇸🇦Saudi Arabia	Middle East	570,368	545,510	11,704,802	1,909,471	20.52	673
#28	🇵🇹Portugal	Western Europe	568,757	509,013	13,632,162	1,849,131	23.97	794
#29	🇲🇽Mexico	Latin America	558,931	514,436	10,021,390	1,687,822	17.93	684
#30	🇭🇰Hong Kong	Asiatic Region	548,556	505,222	18,256,588	1,693,492	33.28	935
#31	🇿🇦South Africa	Africa	533,957	467,270	11,500,529	2,022,929	21.54	761
#32	🇳🇴Norway	Western Europe	533,232	471,325	16,880,841	1,969,653	31.66	953
#33	🇨🇿Czech Republic	Eastern Europe	527,808	500,410	9,782,686	1,561,985	18.53	715
#34	🇫🇮Finland	Western Europe	526,762	477,069	17,373,941	1,987,379	32.98	950
#35	🇮🇩Indonesia	Asiatic Region	522,771	506,360	3,796,851	1,158,783	7.26	381
#36	🇬🇷Greece	Western Europe	511,712	453,895	12,911,378	1,555,155	25.23	775
#37	🇸🇬Singapore	Asiatic Region	501,922	453,241	16,980,424	1,356,514	33.83	936
#38	🇪🇬Egypt	Africa/Middle East	483,017	461,751	8,679,630	1,734,252	17.97	496
#39	🇵🇰Pakistan	Asiatic Region	417,784	389,712	7,534,065	1,567,311	18.03	529
#40	🇳🇿New Zealand	Pacific Region	385,331	332,409	11,993,285	1,296,891	31.12	802
#41	🇹🇭Thailand	Asiatic Region	374,005	353,080	6,482,540	935,364	17.33	520
#42	🇮🇪Ireland	Western Europe	360,809	307,355	10,785,679	912,241	29.89	812
#43	🇺🇦Ukraine	Eastern Europe	357,473	344,560	3,139,218	922,921	8.78	405
#44	🇷🇴Romania	Eastern Europe	346,715	327,134	4,586,840	748,409	13.23	497
#45	🇦🇷Argentina	Latin America	335,720	309,026	7,372,776	1,212,986	21.96	646
#46	🇭🇺Hungary	Eastern Europe	307,547	285,660	6,988,958	854,113	22.72	672
#47	🇨🇱Chile	Latin America	291,720	272,535	6,268,433	1,023,135	21.49	597
#48	🇨🇴Colombia	Latin America	228,994	212,895	3,454,885	481,496	15.09	472
#49	🌐Nigeria	Africa	222,607	201,021	3,021,370	575,055	13.57	378
#50	🌐Iraq	Middle East	194,802	189,848	1,737,828	459,621	8.92	268

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