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Impact Factor Calculator

Find a journal's impact factor.

Calculated Output

Impact factor 3.2

Formula: IF = citations / publications

Step-by-Step Breakdown

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

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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.