5 Year Impact Factor & Ranking

3.6 2.7 1.8 0.9 3.518 2014 2015 2016 2017 2018 3.518 2014 2015 2016 2017 2018
  • 1 157
    #55
  • 1 131
    #27
  • 1 121
    #26
  • 1 157
    #40
  • 1 132
    #22
  • 1 122
    #17
  • 1 158
    #56
  • 1 135
    #33
  • 1 129
    #25
  • 1 159
    #42
  • 1 135
    #28
  • 1 128
    #26
  • 1 162
    #47
  • 1 137
    #35
  • 1 128
    #30

About 5 Year Impact Factor & Ranking

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

Metrics

Year I.F. Biotechnology & applied microbiology Engineering, chemical Food science & technology
2018 3.518 47/162 35/137 30/128
2017 42/159 28/135 26/128
2016 56/158 33/135 25/129
2015 40/157 22/132 17/122
2014 55/157 27/131 26/121

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.