Chicago Citation Generator

Generate accurate citations in Chicago style (Author-Date system). Enter a URL, DOI, ISBN, or book title to automatically fetch and format citation data.

Note: This tool uses the Author-Date system from The Chicago Manual of Style, 17th edition. For the Notes-Bibliography system, please refer to the manual.

Chicago Style (Author-Date) Citation Guide

In-Text Citations

Chicago Author-Date style uses parenthetical citations with author's last name, year, and page number.

Basic Format:

One author: (Smith 2020)
Two authors: (Smith and Jones 2020)
Three authors: (Smith, Jones, and Brown 2020)
Four or more authors: (Smith et al. 2020)
With page number: (Smith 2020, 45)
No author: ("Article Title" 2020)
No date: (Smith n.d.)

Reference List Entries

Chicago style formats references differently based on source type. All authors are listed in the reference list.

Examples

Book:

Smith, John. 2020. Understanding Climate Change. New York: University Press.

Journal Article:

Jones, Sarah. 2024. "Advances in Renewable Energy." Energy Research 15, no. 3 (March): 45-67. https://doi.org/10.1234/example

Website:

Brown, Michael. 2024. "The Digital Revolution." Tech Weekly. January 15, 2024. https://techweekly.com/digital-revolution

Key Features

Year appears after author name, before title
Book titles are italicized with title case
Article titles use title case with quotation marks
All authors listed in reference list (no et al. limit)
Commas separate author names; "and" before last author
DOI or URL included when available