Field-Weighted Citation Impact (FWCI) is the ratio of the total citations actually received by the denominator’s output, and the total citations that would be expected based on the average of the subject field. To Scopus database it is sourced directly from SciVal.
(FWCI) score comes from the Scopus database and shows how the article's citation count compares to similar articles in the same field and timeframe.
A score of 1.00 means the article is cited as it would be expected, greater than 1.00 the article is doing better than expected, and less than 1.00 the article is underperforming.
Because the FWCI comes from the Scopus database, only documents within the database (1996 to the present) will have a FWCI.
Because the FWCI includes field normalization, theoretically, the score should be a better indicator of performance than a raw citation count.
The exact way the FWCI is not made publically available calculation for the FWCI
Go to the Scopus database
Using the article's title, find the record for that article in the database
Click on the article's title to see the full record
On the full record, go to the bottom of the right-hand column and look at the Metric box for:
Number of citations,
The percentile that number represents, and
Field-Weighted Citation Impact Score (FWCI)
In this case, the article was cited 17 times which put it in the 94th percentile of articles within its field and its FWCI is 5.75 which indicates that it received almost 6 times the number of citations the average article in this field received.