Impact Factor Calculator

Find a journal's impact factor.

Impact factor 3.2

Formula: IF = citations / publications

Step-by-step with your numbers:

1. Values used:

2. Citations in year = 800

3. Articles in prior 2 years = 250

5. Impact factor = Citations in year / Articles in prior 2 years = 800 / 250 = 3.2

Did we solve your problem today?

A journal's impact factor measures how often its recent articles are cited.

The math behind it

IF = citations this year to articles from the prior two years, divided by the number of those articles.

800 citations to 250 articles gives an impact factor of 3.2.

Is a high IF always better?

It varies by field; compare journals within the same discipline.