Citation Impact Factor Rechner
Berechnen Sie journal-style impact factor aus citations und publication count over a defined window.
Impact Factor
4.000
Impact Factor vs Citations This Year to Articles in Window
Formel
## How Journal Impact Factor is Calculated The impact factor (IF) measures how frequently articles from a journal are cited. ### Formula **IF = Citations in Current Year to Articles Published in Prior Window / Total Articles in Window** The standard window is 2 years. A journal that published 80 articles in 2 years and received 320 citations to those articles has an IF of 4.0. ### Context - IF > 10: High impact - IF 3-10: Good impact - IF 1-3: Moderate impact - IF < 1: Lower impact
Lösungsbeispiel
A journal published 80 articles in the last 2 years and received 320 citations to those articles this year.
- 01Impact factor: 320 / 80 = 4.000
- 02Articles per year: 80 / 2 = 40.0
Häufig Gestellte Fragen
Who calculates official impact factors?
Clarivate Analytics calculates the official Journal Impact Factor (JIF) published in Journal Citation Reports.
Can impact factor be gamed?
Yes, through editorial self-citation, review articles, and publication timing. This is why multiple metrics should be used.
Is a higher impact factor always better?
Not necessarily. Niche fields have lower citation rates. A specialized journal with IF 2.0 may be top-tier in its field.