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PolyU Library

Journal Impact

What are Google Scholar Metrics, h5-index and h5-median

About Google Scholar Metrics

  • include a Top 100 list of journals for broad subject area, such as Business, Economics & Management, Engineering & Computer Science, and Humanities, Literature & Arts.
  • by selecting “Subcategories” from the broad subject area, you will find the journal list for a more specific category, such as Marketing, Finance and Hotel & Hospitality.
  • journals are ranked by their h5-index and h5-median.
  • may cover journals that are not included in either Scopus or Web of Science.
  • the journal list is also available for languages other than English, such as Chinese, Spanish, French, Japanese and Korean.

h5-index and h5-median

  • h5-index is the h-index for articles published in the last 5 complete years. It is the largest number h such that h articles published in 2015-2019 have at least h citations each. E.g. the h5-index of a journal is 185 means that 185 articles published in the journal in 2015-2019 have received at least 185 citations each article.
  • h5-median is the median number of citations for the articles that make up its h5-index.

The h5-index is based on a 5-year publication window, i.e. 2015-2019. To calculate h-index based on a different range of years, use Harzing's Publish or Perish.

Read Google Scholar Available Metrics for more details.

Find Top Journals based on Google Scholar Metrics

► Step 1. Go to Google Scholar Metrics.

► Step 2. Select the subject area of your interest, e.g. "Chemical & Material Sciences". The Top 100 journals are ranked by their h5-index and h5-median. You may further limit to more specific subject areas by selecting the subcategories.


► Step 3. By clicking on the h5-index of a journal, e.g. Chemical Reviews, you will see which articles published in this journal over the last 5 complete years were cited most and which papers have cited it.

You may also obtain the h5-index for a publication by searching the journal title.