5 Year Impact Factor & Ranking

2.0 1.5 1.0 0.5 1.836 2014 2015 2016 2017 2018 1.836 2014 2015 2016 2017 2018
  • 1 77
    #64
  • 1 157
    #114
  • 1 246
    #178
  • 1 75
    #63
  • 1 157
    #118
  • 1 248
    #182
  • 1 77
    #65
  • 1 158
    #121
  • 1 256
    #199
  • 1 77
    #58
  • 1 159
    #110
  • 1 252
    #187
  • 1 79
    #58
  • 1 162
    #117
  • 1 256
    #192

About 5 Year Impact Factor & Ranking

Impact Factor based on 5 years of history. Copyright Clarivate Analytics.

Metrics

Year I.F. Biochemical research methods Biotechnology & applied microbiology Pharmacology & pharmacy
2018 1.836 58/79 117/162 192/256
2017 58/77 110/159 187/252
2016 65/77 121/158 199/256
2015 63/75 118/157 182/248
2014 64/77 114/157 178/246

Definition

Impact Factor

A base of five years may be more appropriate for journals in certain fields because the body of citations may not be large enough to make reasonable comparisons, or it may take longer than two years to publish and distribute leading to a longer period before others cite the work.

Actual value is intentionally only displayed for the most recent year. Earlier values are available in the Journal Citation Reports from Clarivate Analytics.

ISI ranking

Journals are often ranked by Impact Factor in an appropriate Clarivate Analytics subject category. As there are now two Impact Factors published – two-year and five-year Impact Factors – this rank may differ, so care is needed when assessing these ranked lists to understand which of the two metrics is being used. In addition, journals can be categorized in multiple subject categories, giving them different ranks for each subject. Consequently, a rank should always be in context to the subject category.