Proceedings of the National Academy of Sciences of the United States of America Impact factor 2025

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The latest impact factor of Proceedings of the National Academy of Sciences of the United States of America and all the other Web of Science journals was released on 20th June 2025 by Clarivate. Through this web page, researchers can check the impact factor, total citation, journal quartile, and journal aim & scope.

Proceedings of the National Academy of Sciences of the United States of America: Aim & Scope

Proceedings of the National Academy of Sciences of the United States of America is a Web of Science indexed journal tha publishes research in the area: Multidisciplinary Sciences.
The ISSN of this journal is 1091-6490.

Impact factor of Proceedings of the National Academy of Sciences of the United States of America

Journal Title	Proceedings of the National Academy of Sciences of the United States of America
Impact Factor	9.4
SJR	4.026
ISSN	1091-6490
Quartile	Q1

Impact Factor from year 2018-2024

Year	Impact Factor
2018	9.504
2019	9.58
2020	9.412
2021	11.205
2022
2023	11.1
2025	9.4

The Journal Impact Factor is defined as citations to the journal in the JCR year to items published in the previous two years, divided by the total number of scholarly items, also known as citable items, (these comprise articles and reviews) published in the journal in the previous two years.

Impact factor data has a strong influence on the scientific community, affecting decisions on where to publish, whom to promote or hire, the success of grant applications, and even salary bonuses.

Only journals listed in the Science Citation Index Expanded (SCIE) and Social Sciences Citation Index (SSCI) receive an Impact Factor.

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Proceedings of the National Academy of Sciences of the United States of America

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About SCI

SCI is a multidisciplinary citation index. Science Citation Index covers 9,000+ journals across 177 scientific disciplines. SCI was established in 1900 to the current. SCI-indexed journals are indexed by SCI and SSCI. SCI is described as the world's leading journal.

All journals covered in this database are reviewed for sufficiently high quality each year.

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