During 2017, the Journal Citation Reports (JCR) database tracked all impact factors for 12,298 journals. Impact Factors are useful, but they should not be the only consideration when judging quality. Not all journals are tracked in the JCR database and, as a result, do not have impact factors. New journals must wait until they have a record of citations before even being considered for inclusion. The question " Is there any other organization tracked impact factors for journals besides the Journal Citation Reports (JCR)?
Maged - the other market leader is the Scopus (SCImago) Journal Rank (SJR). It has the benefit of including Quartlie rankings - which may open up further journal sources for you - depending on the discipline.
Dear sir
You can calculate particular journal impact factor in manually.
Impact Factor calculation formula.
Journal Impact Factor =
Cites in 2014 to articles published in Journal X in 2013 and 2012 Total number of articles published in Journal X in 2013 and 2012
Muthuraj - yes you can. There is a limiter function that allows you to access scores according to year. I can't recall how far it goes back though.
Yes, now there are alternatives. Citescore launched by Elsevier is the best alternative. For a long time, there was no competition for the Impact Factor of Clarivate Analytics. As the Journal Impact Factor(JIF) is derived from journals indexed in the Web of Science, other journals cannot have an Impact Factor. Elsevier came up with CiteScore to counter the monopoly of Clarivate Analyitcs. You can freely access CiteScore on the Scopus Journal Metrics website. At the same time, Journal Citation Reports (JCR) is a paid subscription. Elsevier also claims that CiteScore is calculated from the list of Scopus journals, which is much larger than the Web of Science list. You can note down “CiteScore” and other bibliometric values from the site: https://www.scopus.com/sources
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