Chicago vs Harvard: Side-by-Side Citation Style Comparison
Most students get assigned one style and never switch. When you do switch — or when a class lets you choose — the differences between Chicago 17th (Notes-Bibliography) and Harvard (Cite Them Right) matter in small but graded-down ways.
In-text citation
Chicago: Footnote 1, then "Brown 2018, 42"
Harvard: (Brown 2018: 42)
Notice the punctuation, the page-number prefix, and the comma placement — those are the bits professors mark down.
Reference list entry (a book by one author)
Chicago:
Brown, Brené. Dare to Lead. New York: Random House, 2018.
Harvard:
Brown, B. (2018) Dare to lead. New York: Random House.
Author names
Chicago: Same as MLA in bibliographies. Notes use First Last (not inverted). Up to 10 names listed.
Harvard: Last, F. with initials. "and" or "&" before final author depending on guide variant.
Dates
Chicago: Month Day, Year: March 14, 2024. Full month names. Day-Month-Year is allowed in British editions.
Harvard: Year only inside the in-text citation; full Day Month Year appears in the bibliography.
Where each is used
Chicago is the default in history, philosophy, theology, and the broader humanities at the graduate level.
Harvard dominates business and economics in the UK, plus many social-science programs in Australia and the EU.
Frequently asked
Can I convert a Chicago paper to Harvard automatically?
No tool does this losslessly. The author order, date format, and italicization rules differ. Our generator can produce either style from the same input fields — easier to redo references than to convert them.
If my professor accepts either, which should I pick?
Pick the one used most in your field — history, philosophy, theology, and the broader humanities at the graduate level for Chicago, business and economics in the UK, plus many social-science programs in Australia and the EU for Harvard. Future readers will be expecting that one.
Do the in-text citation rules differ as much as the reference rules?
Yes. The in-text format is usually what catches most students out first because it appears more often than the reference list.