When you use Turabian 9th edition
Turabian is not a separate invention. Kate Turabian ran the dissertation office at the University of Chicago for decades, and her Manual for Writers condensed the enormous Chicago Manual of Style into a handbook sized for students. The 9th edition is current, and when a history or theology course says cite in Turabian, it means Chicago citation rules plus student paper formatting.
Like Chicago, Turabian offers two systems. Notes and bibliography, with numbered footnotes and an alphabetical bibliography, is what humanities courses nearly always want. The author-date alternative, with citations like (Brown 2021, 87), appears mostly in social science settings. Everything below covers notes and bibliography, and the generator output drops straight into the bibliography.
The practical difference from Chicago is not the citations, which are identical, but the paper itself. Turabian specifies things the Chicago Manual leaves to publishers: title page layout, margins, page numbers, heading levels. So build your citations here, and check your course guide for the title page rules.
The formats, with real examples
Paste your source into the tool above and it fills these in for you. If you would rather see the pattern, here is exactly what each one looks like.
In-text citations
If your course uses Turabian author-date instead, citations look like (Brown 2021, 87) with a reference list, the same as Chicago author-date.