Index h

The h index measures the impact of an author’s search by combining quality and quantity. 

  • All the works of an author are collected and arranged in descending order based on the citations received.
  • The index h is a measure of position, namely that in which the volume of citations is greater than or equal to the order number that the article occupies in a descending distribution of quotations.
The following example shows how the index h in this table is 4 (number of citations equal to or greater than its order number). 

Order of the article

Number of citations 
1 20
2 16
3 10
4 5
5 4

See the instructions for consulting the H index according to the resource where you want to locate it.


  • Access to Scopus. If you access Scopus directly through Google or FECYT, remember to install the eBIB button in the browser.
  • Access to Web of Science. Once validated with the eBIB Service, select the UPC from the "Federated Institutions of the FECYT" ​​drop-down.  
  • If access to Web of Science is via FECYT, select the UPC from the "Federated Institutions of the FECYT" ​​drop-down and choose "Federation of SPAIN by FECYT" ​​from the "Institution" drop-down.


Index H to Scopus 

WoS H Index (new access interface)

Index H to Google Scholar


Last update: 09 / 03 / 2022