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Research Impact: Compare metrics

Get strategies to increase the reach of your work and measure your research impact

Journal-Level Metrics

Metric Data source Brief description Field weighted* Access Provider Instructions & support
Journal Impact Factor (JIF) Journal Citation Reports (Web of Science) Number of citations within one year to items published in the last two years, also available excluding journal self-cites and as a five-year impact factor No InCites Journal Citation Reports Clarivate Analytics Tutorials
CiteScore Scopus Elsevier metric calculated from the number of citations within one year to documents published in the previous three years No Scopus Elsevier

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SCImago Journal Rank (SJR) Scopus Calculated based on both the number of citations received by the journal and a measure of the prestige of citing journals Yes Scopus SCImago

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SJR website SCImago Help
Source Normalized Impact per Paper (SNIP) Scopus Represented as the ratio of citation count per paper and the citation potential of a subject field Yes Scopus CWTS**, Leiden University

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Eigenfactor score Journal Citation Reports (Web of Science) Based on the number of citations to articles from the past five years in the JCR year, taking into account which journals those citations have come from and adjusting for differences in citation patterns across disciplines Yes InCites Journal Citation Reports Eigenfactor Project Help
Impact Per Publication (IPP) Scopus Represented as the ratio of citations in a year to papers published in the previous three years, divided by the number of papers published in those years No

Journal Finder

(2014 IPP)
SCImago How to use Journal Finder
Article Influence Score Journal Citation Reports (Web of Science) A measure of the average influence of a journal’s papers over the first five years following publication Yes InCites Journal Citation Reports Eigenfactor Project

Tutorials

H-Index Scopus Expresses the journal's number of articles (h) that have received at least h citations No SCImago Journal & Country Rank website SCImago Help
h5-Index Google Scholar

The h-Index of only those of a publication's articles that were published in the last five complete calendar years

No Google Scholar Google Introduction
h5-Median Google Scholar The median number of citations for papers that make up the h5-Index No Google Scholar Google Introduction
Citations per Paper (CPP) IRMA The average number of citations that a University of Sydney publication in a journal receives No Journal Finder University of Sydney How to use Journal Finder
Relative Citation Impact (RCI) IRMA Indicates how frequently citations occur compared to the global average, as an average of University of Sydney publications in a journal No Journal Finder University of Sydney How to use Journal Finder

*Accounts for disciplinary differences in citation patterns

**Centre for Science and Technology Studies

Journal Rankings

Ranking Data source Brief description Ranking measure Access Provider Discipline
ARWU Subject Ranking Top 20%  Journal Citation Reports (Web of Science) The top 20 percent of journals in each broad subject area, ranked by JIF, are included in the calculation of ARWU Subject rankings JIF Journal Finder University of Sydney (via Journal Citation Reports) Natural sciences, engineering, life sciences, medical sciences, social sciences
Nature Global Index List Web of Science Sixty-eight journals are selected by two panels of active scientists as being of high quality, in order to inform the Nature Index author affiliation database Perception of panel members Nature Index Nature Sciences
SCImago Journal Rank Scopus The ranking that accompanies SJR scores assigned to publications, can be refined by Scopus Subject Areas and Subject Categories SJR SCImago Journal & Country Rank website SCImago Broad representation with science focus
Journal Citation Reports Category Ranks Web of Science Journals in specified subject categories can be ranked by Journal Impact Factor, Eigenfactor Score or other metrics JIF; Eigenfactor Score InCites Journal Citation Reports Clarivate Analytics; Eigenfactor Project Broad representation with science focus
Scopus Category Rankings Scopus Lists of journals indexed in Scopus can be browsed by subject area (classified using the All Science Journal Classification Scheme) and sorted by different metrics CiteScore, SJR, SNIP  Scopus Elsevier; SCImago; CWTS, Leiden University Broad representation with science focus

Author-Level Metrics

Metric Brief description Field weighted? Access Data source Provider Instructions & support
H-Index

A researcher with an index of h has published h papers, each of which has been cited h times, over a specified period of time, within a specified source.

We recommend building your profile via ORCID before attempting to calculate your h-index.

No Scopus Scopus Elsevier

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Tutorial
Web of Science Web of Science Clarivate Analytics Help
Google Scholar Google Scholar Google Introduction
Citations per publication The average number of citations received per publication No SciVal SciVal Elsevier Online manual
Field-weighted citation impact The ratio of citations received relative to the expected world average for a subject field, publication type and publication year Yes SciVal SciVal Elsevier Online manual
Category-normalised citation impact Citations per paper normalised for subject, year and document type Yes InCites InCites Dataset Clarivate Analytics Help
Author-level Eigenfactor Weighted measure of an author’s citations that accounts for the number of authors of papers, self-citations and the importance of citing papers Yes SSRN SSRN Elsevier FAQ
i10-Index Number of publications with at least 10 citations No Google Scholar profile Google Scholar Google Introduction