SCI Journal

Impact Factor Database

Chronobiology International

Basic Journal Info


United States
Journal ISSN: 7420528
Publisher: Marcel Dekker Inc.
History: 1984-ongoing
Journal Hompage: Link

Research Categories

Chronobiology International

Impact Factor


Impact Factor


Impact Factor



Chronobiology International is the journal of biological and medical rhythm research. It is a transdisciplinary journal focusing on biological rhythm phenomena of all life forms. It is the major forum of communications for and among chronobiologists. The journal publishes groundbreaking articles on genetic and molecular mechanisms of biological timekeeping; melatonin and pineal gland rhythms; the chronobiology and chronotherapy of sleep, cardiovascular, pulmonary, and other medical conditions; applied areas such as shiftwork; plus authoritative review papers, short communications of work in progress, case studies, and letters to the editor.

Chronobiology International

2-year Impact Factor Trend
Note: impact factor data for reference only

Chronobiology International

3-year Impact Factor Trend
Note: impact factor data for reference only

Chronobiology International

4-year Impact Factor Trend
Note: impact factor data for reference only

Impact Factor

The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric factor based on the yearly average number of citations on articles published by a particular journal in the last two years. In other words, the impact factor of 2020 is the average of the number of cited publications divided by the citable publications of a journal. A journal impact factor is frequently used as a proxy for the relative importance of a journal within its field. Normally, journals with higher impact factors are often deemed to have more influence than those with lower ones. However, the science community has also noted that review articles typically are more citable than research articles.

Find out more: What is a good impact factor?
And check out: How to get published in a top science journal?

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Chronobiology International

Impact Factor History
  • 2019 Impact Factor 2.768
  • 2018 Impact Factor 2.637
  • 2017 Impact Factor 2.760
  • 2016 Impact Factor 2.750
  • 2015 Impact Factor 3.967
  • 2014 Impact Factor 3.731
  • 2013 Impact Factor 3.172
  • 2012 Impact Factor 4.951
  • 2011 Impact Factor 4.301
  • 2010 Impact Factor 5.688
  • 2009 Impact Factor 4.588
  • 2008 Impact Factor 3.738
  • 2007 Impact Factor 4.346
  • 2006 Impact Factor 2.993
  • 2005 Impact Factor 2.607
  • 2004 Impact Factor 1.623
  • 2003 Impact Factor 1.755
  • 2002 Impact Factor 1.621
  • 2001 Impact Factor 1.828
  • 2000 Impact Factor 1.867
Note: impact factor data for reference only

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Other Journal Impact Indicator

Any journal impact factor or scientometric indicator alone will not give you the full picture of a science journal. That’s why every year, scholars review current metrics to improve upon them and sometimes come up with new ones. There are also other factors to sider for example, H-Index, Self-Citation Ratio, SJR (SCImago Journal Rank Indicator) and SNIP (Source Normalized Impact per Paper). Researchers may also consider the practical aspect of a journal such as publication fees, acceptance rate, review speed.

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Chronobiology International


The h-index is an author-level metric that attempts to measure both the productivity and citation impact of the publications of a scientist or scholar. The index is based on the set of the scientist's most cited papers and the number of citations that they have received in other publications


Chronobiology International

SCImago Journal Rank (SJR)

SCImago Journal Rank (SJR indicator) is a measure of scientific influence of scholarly journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from.