ImpaQ Ecosystem•Clarivate, Scopus & CORE Data
Clarivate WoS 2024 / 2025 Data
IMPAQ
WoS SCIE Q2Scopus Q1SCImago #8,455Hybrid

PeerJ

Abbreviation (ISO):PEERJ
•
Identifier (ISSN):2167-8359(Print)
•
Publisher:PeerJ Inc.
Clarivate IF (2026)
2.9↑ +0.5
Journal Impact Factor
IF Trend↓
WoS Quartile
Q2
WoS SCIEJCR Quartile
Clarivate WoS JCR
WoS Categories↓
JCR Release Date: 2026-06-17

Impact Factor Trend (2018–2026)

Clarivate IF trend for PeerJ

WoS Q2
12342.1220182.3520192.3820202.9820213.0620222.720232.320242.420252.92026
Annual Impact Factor Metric
Current (2026):2.9
Scopus SJR & RankScopus Q1
0.685
#8,455

SCImago Journal Rank citation prestige weighting

Scopus Year: 2025
H-Index (2025)
136

136 papers with at least that number of citations each

WoS: SCIE / JCRQ2
Self-Citation Rate4.3%
Safe Level (< 15%)Warning Level (> 20%)
Self-citation below 15% indicates strong scholarly independence.
Volume & Open AccessHybrid
2,086articles/year
99.51% Gold OA•97.21% Original Research

Aims & Scope

PeerJ is an open access peer-reviewed scientific journal covering research in the biological and medical sciences. At PeerJ, authors take out a lifetime publication plan (for as little as $99) which allows them to publish articles in the journal for free, forever. PeerJ has 5 Nobel Prize Winners on the Board; they have won several industry and media awards; and they are widely recognized as being one of the most interesting recent developments in academic publishing.

Topics Covered (Recognized by AI)
BiologyMedicineChemistryGeneticsEcologyBiochemistryGeologyPaleontologyInternal MedicineComputer SciencePlant SciencesGeographyPhysicsMathematicsPathology
Primary Research Areas

WoS Categories & Quartiles

Detailed JCR / JCI category rankings and quartile breakdown from Clarivate

Clarivate JCR & JCI
JCRSCIE2026

MULTIDISCIPLINARY SCIENCES

Q2
Rank44/140
IndexSCIE
JCISCIE2026

MULTIDISCIPLINARY SCIENCES

Q2
Rank41/140
IndexSCIE

Annual Historical Statistics & Publications

Track annual publication volume, total citations, and Impact Factor evolution

12 year
2026Latest
IF2.9
Articles / Year1,232
Total Citations416
2025
IF2.4
Articles / Year1,755
Total Citations4,476
2024
IF2.3
Articles / Year2,021
Total Citations12,776
2023
IF2.7
Articles / Year2,099
Total Citations19,049
2022
IF3.061
Articles / Year1,871
Total Citations24,839

SCImago & Scopus Journal Intelligence

Global SCImago ranking, SJR prestige index, Scopus coverage, and societal policy impact

Rank #8,455Scopus Q1SCImago Profile
Scopus Coverage:2013-2026
Scopus Broad Areas:Agricultural and Biological SciencesBiochemistry, Genetics and Molecular BiologyMedicineNeuroscience
Scopus Citation Rank (SJR)Q1
0.685

Weighted prestige citation metric per document indexed in the Scopus database.

Quartile: Scopus Q1
Citations / Doc (2 years)
3.03

Average citations received per document published in the 2-year window.

2-Year Citation Window
Estimated Publication Fee (APC)
$3,100 USD

Estimated Article Processing Charge for Open Access publication.

Estimated cost / article

Scopus 3-Year Publication & Citation Window

3-Year Citations19,082
3-Year Documents5,956
Citable Documents5,956

Aggregated from Scopus database across the 3-year SJR evaluation window.

Societal Impact & Inclusivity (SCImago)

Policy Citations (Overton)2

Citations in government and international policy documents

Female Author Rate43.9%

Percentage of female authors published in the journal

Real-world societal policy reach and author gender diversity tracked by SCImago.

Scopus Subject Categories

Agricultural and Biological Sciences (miscellaneous)Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)Q2
Medicine (miscellaneous)Q2
Neuroscience (miscellaneous)Q3
Academic Metric Intelligence

Journal Metrics & Citation Visualizations

Total Cites vs Self-Cites

Evaluation of scholarly independence and citation reach

Total citations steady growth
Self-citation: 4.3%

Citations per Document

Citation metric windows across 2, 3, and 4 years

Cites / Doc (4 years)Cites / Doc (3 years)Cites / Doc (2 years)

Chinese Academy of Sciences (CAS) Classification

Major / minor zone classification and CAS Early Warning List history

Major Category (Broad Field):
3区 (Zone 3)Biology
Minor Category (Specific Field):
3区MULTIDISCIPLINARY SCIENCES
CAS Early Warning List History:
Updated annually: 2020 – 2024
2020
Not warned
2021
Not warned
2022
Not warned
2023
Not warned
2024
Not warned

Academic Intelligence Overview & Context

ImpaQ Analysis

PeerJ (abbr: PEERJ, ISSN: 2167-8359) is a peer-reviewed international scholarly journal in the field of MULTIDISCIPLINARY SCIENCES, published by PeerJ Inc. in England. The periodical holds a Journal Impact Factor (JIF) of 2.90, ranking in quartile Q2 of Web of Science (SCIE), a Scopus SJR indicator of 0.685 (Q1), an H-index of 136.

The journal enforces rigorous peer evaluation with an annual output of approximately 2,086 scientific articles. In terms of accessibility and author fees, it operates under the Hybrid model with an estimated APC of $3,100 USD. It serves as a benchmark publication platform for academics, researchers, and doctoral candidates seeking global research visibility.

Publishing & Editorial Information

Detailed publisher, peer-review turnaround, and publication cycle specifications

Open Access Model
Hybrid
Publisher
PeerJ Inc.
Publication Language
English
Frequency
Periodic
Indexing & Databases
SCIEScopusDOAJPubMed
Editorial Address
341-345 OLD ST, THIRD FLR, LONDON, ENGLAND, EC1V 9LL

Similar Journals in Discipline

Journals in the same research field with comparable impact metrics

Record UUID: 2f3a7b12-7776-4778-bf8b-2c22e22dbe3e
Database Updated: 2026-09-28