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Journal: American Association for the Advancement of Science

Science: impact and ranking

Science has a 2-year mean citedness of 21.5 in OpenAlex, which ranks #53 of 18,122 journals, and an h-index of 1,752. This is the open counterpart of the impact factor, not Clarivate's figure. All journals.

2-year mean citedness
21.5
#53 of 18,122 journals
h-index
1,752
#2 of 18,122
Citations
22.7M
#2 of 18,122
Works
374k
60.6 citations per work

What is the impact factor of Science?

The impact factor is a figure Clarivate licenses, so it is not shown here. Its open counterpart is the 2-year mean citedness OpenAlex holds for Science: 21.5, the mean number of citations received by the journal's papers of the last two years. That ranks Science #53 of 18,122 journals, in the top 0.3%. The two figures follow the same idea on different records, so they are not equal.

What is the h-index of Science?

OpenAlex gives Science an h-index of 1,752: 1,752 of its papers have each been cited at least 1,752 times. That ranks #2 of 18,122 journals.

How much does Science publish?

OpenAlex records 374,366 works in Science from 1872 to 2026, cited 22,705,069 times in all, 60.6 citations per work. By total citations it ranks #2 of 18,122 journals.

still counting200020102020

Works recorded in OpenAlex for each year of publication. The last year is partial.

About Science

Publisher
American Association for the Advancement of Science
Country
United States
ISSN-L
0036-8075
In OpenAlex
1872 to 2026
Open access
OpenAlex does not list Science as fully open access, though individual articles in it may be open.
OpenAlex record
S3880285

Journals ranked near Science

The journals with a page that stand just above and below Science on 2-year mean citedness.

RankJournal2-year mean citednessh-index
43Nature Materials23.7653
46Advanced Materials23.3747
47The Quarterly Journal of Economics23.3570
55Accounts of Chemical Research21.1562
57The Lancet21.01,203
58Coordination Chemistry Reviews21.0381

How these figures are made

Every figure is from OpenAlex's record of this journal, snapshot of 2026-10-14. The 2-year mean citedness is not Clarivate's impact factor: it counts the citations OpenAlex has recorded, so it differs from the licensed figure. Ranks are among the 18,122 journals with at least 1,000 works in OpenAlex and a record in 2025 or later that pass checks for record errors. Method and limits.