The h-index, which was proposed in 2005 by physicist Jorge E. Hirsch, is a composite indicator of scholarly productivity (number of publications) and impact (number of citations). 

Example:

If you have authored 12 papers that have each received at least 12 citations, then your h-index is 12.

Considerations:

• The h-index tends to favour researchers who have published a high number of papers; it should not be used to compare researchers at different stages of their careers.
• Due to disciplinary differences in publication and citation rates, the h-index should not be used to compare researchers from different fields.
• Research published in books or in other sources that are not well covered in citation-tracking databases will be under-represented in h-index calculations.

Find your h-index:

Your h-index is available from the following citation tracking databases, or you can calculate it manually:

• Scopus - perform an Author Search to find your Scopus Author Profile, which contains your h-index.
• Web of Science - perform an Author Search for your name, then click on Create Citation Report.
• Google Scholar - your h-index is visible on your Google Scholar Citations profile.

The value of your h-index may vary between the above sources because of differences in the source data.

More information:

Bornmann, L., & Daniel, H. D. (2007). What do we know about the h index? Journal of the American Society for Information Science and Technology, 58(9), 1381-1385. https://doi.org/10.1002/asi.20609

Hirsch, J. E. (2005). An index to quantify an individual's scientific research output. Proceedings of the National Academy of Sciences, 102(46), 16569-16572. https://doi.org/10.1073/pnas.0507655102

Waltman, L., & Van Eck, N. J. (2012). The inconsistency of the h‐index. Journal of the American Society for Information Science and Technology, 63(2), 406-415. https://doi.org/10.1002/asi.21678

i10-Index = the number of publications with at least 10 citations. 

The i10-Index is a metric created by Google for use in its researcher profile system, Google Scholar Citations.

Find your i10-index:

Your i10-index is available from within Google Scholar Citations.