SCI Journal

Impact Factor Database

The Lancet

Basic Journal Info


United Kingdom
Journal ISSN: 01406736, 1474547X
Publisher: The Lancet Publishing Group
History: 1823-ongoing
Journal Hompage: Link

Research Categories

The Lancet

Impact Factor


Impact Factor


Impact Factor



The Lancet is the world leading independent general medical journal. The journal coverage is international in focus and extends to all aspects of human health. The Lancet is published weekly from editorial offices in London and New York. It aims to publish the best original primary research papers, and review articles of the highest standard. The Lancet is stringently edited and peer-reviewed to ensure the scientific merit and clinical relevance of its diverse content. Drawing on an international network of advisers and contributors, The Lancet meets the needs of physicians by adding to their clinical knowledge and alerting them to current issues affecting the practise of medicine worldwide.

The Lancet

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

The Lancet

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

The Lancet

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?

See what other people are reading


The Lancet

Impact Factor History
  • 2019 Impact Factor 44.862
  • 2018 Impact Factor 45.017
  • 2017 Impact Factor 37.103
  • 2016 Impact Factor 31.769
  • 2015 Impact Factor 31.981
  • 2014 Impact Factor 35.830
  • 2013 Impact Factor 29.777
  • 2012 Impact Factor 30.275
  • 2011 Impact Factor 35.793
  • 2010 Impact Factor 35.434
  • 2009 Impact Factor 30.552
  • 2008 Impact Factor 23.137
  • 2007 Impact Factor 21.175
  • 2006 Impact Factor 17.174
  • 2005 Impact Factor 13.701
  • 2004 Impact Factor 13.323
  • 2003 Impact Factor 11.117
  • 2002 Impact Factor 10.059
  • 2001 Impact Factor 10.203
  • 2000 Impact Factor 8.612
Note: impact factor data for reference only

See what other people are reading


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.

(Read More)

The Lancet


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


The Lancet

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.