Free h-Index Calculator
Paste your citation counts below (comma, space, or new line separated) to instantly calculate your h-index.
What is the h-index?
The h-index is a popular citation metric used to estimate both the productivity and research impact of a scholar. A researcher has an h-index of h when they have h papers with at least h citations each.
For example, an h-index of 12 means there are 12 papers that each received at least 12 citations. It balances quantity and quality better than raw publication count or total citations alone.
How to calculate h-index (simple rule)
Manual method
- List all your papers and their citation counts.
- Sort counts from highest to lowest.
- Find the last position where citation count is greater than or equal to position number.
- That position number is your h-index.
Example sorted list: 20, 15, 10, 8, 5, 3, 2
At position 5, citations = 5, so condition holds. At position 6, citations = 3 (less than 6), so stop. h-index = 5.
Why use an online h-index calculator?
If you have many papers, manual computation becomes tedious and error-prone. An online tool gives immediate results and helps you verify citation datasets from different sources.
- Fast and accurate calculation
- No spreadsheet formulas required
- Works with pasted citation lists
- Useful for CV updates, grant applications, and annual reviews
What this calculator returns
This page computes several useful outputs from your citation data:
- h-index (primary result)
- Total papers
- Total citations
- i10-index (papers with 10 or more citations)
- Sorted citation list used for the calculation
Good practices when using citation metrics
1) Compare within the same field
Citation behavior varies dramatically between disciplines. A strong h-index in one field may look modest in another. Always benchmark against peers in the same area and career stage.
2) Use multiple metrics
No single number captures scientific contribution. Use h-index together with total citations, top-cited papers, mentorship, software, datasets, and real-world impact.
3) Keep your profiles clean
Duplicate entries, wrong attributions, and missing papers can distort your citation indicators. Review your publication profiles regularly.
Frequently asked questions
Is h-index the same in Google Scholar, Scopus, and Web of Science?
Not always. Databases index different journals and document types, so citation counts and h-index values can differ.
Can my h-index go down?
Typically it does not decrease because citations accumulate over time. However, corrections in a database can cause temporary adjustments.
Does a high h-index always mean better research?
No. It is useful, but incomplete. Research quality, originality, teaching, collaboration, and societal impact matter too.
Final thoughts
This h-index calculator online tool is designed to be quick, clear, and practical. Paste your citation data, calculate instantly, and use the result as one part of a broader, more thoughtful evaluation of research impact.