An means a researcher has published at least 4 papers that have each been cited at least 4 times . Understanding the H-Index
It treats the first author and the middle author the same.
While it may seem small compared to the lifetime achievement of a senior researcher, for someone early in their career (within 2–5 years of completing a PhD), an h-index of 4 is strong. hindex of 4 top
An h-index of 4 means you have published that have each been cited at least 4 times . While a "good" h-index varies by field, an h-index of 3–5 is generally considered a sign of a productive early-career researcher or PhD student.
Citation density varies wildly across fields. An h-index of 4 carries different weight depending on your department: An means a researcher has published at least
This is a very common and healthy benchmark for researchers who are 1 to 3 years post-PhD. It shows a steady trajectory of publication and early community engagement.
| Field | Average h-index (Early Career) | "Top" H-Index (Mid-Career) | Is 4 "Top"? | | :--- | :--- | :--- | :--- | | | 6-10 | 40-60 | No (Below average) | | Biomedical Sciences | 5-8 | 50-100+ | No (Entry level) | | Engineering | 3-5 | 20-40 | Average (Not top) | | Mathematics | 2-4 | 15-25 | Promising (Top for junior) | | Social Sciences / Humanities | 1-3 | 10-20 | Excellent (Potentially top for early career) | An h-index of 4 means you have published
While the h-index is widely used for hiring, promotions, and grant allocations, it is often criticized for being a "vanity metric".
If a researcher has 5 publications with 10, 8, 5, 4, and 3 citations respectively, their h-index is 4.