IEEE and Vancouver citation styles both number sources in brackets, which is exactly why they get mixed up so often — a question that comes up regularly enough that researchers ask it directly on forums like ResearchGate. They're genuinely different styles built for different fields, though, and mixing their formatting rules is an easy way to lose marks on an otherwise solid reference list.
Trusted by students at
Both styles cite sources with a number assigned in the order each source first appears in the text, and both commonly use square brackets — [1], [2], [3] — which is the surface-level similarity that trips people up. On a citation-styles thread on ResearchGate, multiple researchers weigh in specifically to say the two are "not the same" and are "different reference styles" despite that shared bracket-and-number mechanic — advice worth taking seriously since it's coming from people who actually publish under both.
Where they diverge is everything past the bracket: how the author's name is written, whether the title gets quotation marks, how the journal name is formatted, and which field each one is actually built for.
IEEE style (the Institute of Electrical and Electronics Engineers' own citation format) writes authors initials-first — J. D. Watson rather than surname-first — puts article titles in quotation marks with sentence-style capitalization, and italicizes the (often abbreviated) journal name: J. D. Watson, "Article title," IEEE Trans. Biomed. Eng., vol. 1, pp. 1–10, 2024. It's the standard citation format across IEEE Transactions journals and IEEE-sponsored conferences, and it's the dominant style in electrical engineering, computer engineering, and related technical fields.
Vancouver style — developed by the International Committee of Medical Journal Editors (ICMJE) and standard across medical and biomedical journals — abbreviates the author's surname followed by initials with no comma or periods, Watson JD, doesn't put titles in quotation marks, and doesn't italicize the journal name, which is instead abbreviated per its own indexing conventions (commonly NLM's catalog abbreviations): Watson JD. Article title. J Med Sci. 2024;1(1):1-10.
This isn't a style choice you get to make — it's set by whichever journal, conference, or department you're submitting to. An engineering or computer science paper almost always means IEEE; a medical or biomedical paper almost always means Vancouver. If you're not sure, check your target journal's "instructions for authors" page or your course's assignment sheet directly, since the two aren't interchangeable and a reviewer or instructor familiar with either format will notice a mismatch immediately.
StudyPilot's citation generator supports both IEEE and Vancouver as separate, selectable styles alongside APA, MLA, Chicago, and Harvard — worth using once you've confirmed which one your target actually requires, since the two produce genuinely different-looking reference lists from the same source information.
Select IEEE or Vancouver specifically and get a correctly formatted reference list — the two aren't interchangeable, so picking the right one from the start saves a rewrite later.
Generate Citations Free →