π Research Impact Calculator
Enter your publications and their citation counts to calculate your h-index, i10-index, total citations, and citation distribution. Runs entirely in your browser β no data is sent anywhere.
Understanding h-index, i10-index, and citation metrics
The h-index (Hirsch index) is the most widely used single-number measure of research impact. A researcher has an h-index of h if exactly h of their papers have been cited at least h times. A researcher with h=20 has at least 20 papers each cited at least 20 times. The h-index balances productivity (number of papers) with impact (citations per paper) in a single number that is robust to one highly-cited paper inflating the count.
i10-index
The i10-index counts the number of publications with at least 10 citations. It was introduced by Google Scholar and is displayed prominently on Google Scholar author profiles. It is simpler than the h-index β it does not adjust for the number of papers above the threshold β but it is easy to understand and provides a quick count of papers that have attracted meaningful attention.
Limitations and context
Citation metrics have significant limitations. They are highly field-dependent β a physics h-index of 10 means something very different from a biology h-index of 10. Early-career researchers will always have lower metrics than senior researchers regardless of output quality, simply because their papers have had less time to accumulate citations. Self-citations inflate all metrics. For promotion, grant, and job applications, always contextualise your metrics with field norms and career stage, and report which database (Google Scholar, Scopus, or Web of Science) you used, as counts differ significantly between them.