An impact factor is, broadly speaking, a measure of the average number of times recent articles published in a specific journal are cited within a given year. For example, the 2003 impact factor is calculated based on citations in 2003 to articles published in 2001 and 2002.
Many Springer Nature journals have Impact Factors, and others are on track to receive them. To be eligible, a journal must have been published for at least two years and be indexed in a relevant Clarivate database, such as the Emerging Sources Citation Index (ESCI). If no Impact Factor is listed on a journal page, it indicates that one has not yet been assigned.
Further details on how Impact Factors are calculated can be found on Clarivate’s website. It is also important to note that most Springer Nature journals are signatories of the San Francisco Declaration on Research Assessment (DORA), which encourages a broader evaluation of research beyond journal-level metrics. In line with this, additional article-level metrics—such as views, downloads, and citations—are available on individual article pages. Additional information is available on our policy pages.
BMC, SpringerOpen, Palgrave Macmillan, and Springer imprints
The impact factor is located on the right side of the journal’s homepage on Springer Nature Link. Examples below:
Nature Portfolio
Once on the journal website you can view the impact factor by clicking on 'About the journal’, ‘Journal Metrics', and scroll down the page.
Peer review and citation metrics for Nature Portfolio are available on their journal metrics page.