AP Title Capitalization
AP style capitalizes words of 4 or more letters. Short prepositions, articles, and conjunctions under 4 letters are lowercase.
Word-by-word explanation
AP capitalization rules
- Capitalise words of 4+ letters
- Lowercase: articles (a, an, the)
- Lowercase: prepositions fewer than 4 letters
- Lowercase: coordinating conjunctions
- First and last word always capitalised
Read the full AP title capitalization rules with examples.
When to Use AP Title Capitalization
AP title case is the standard for Journalism, News, PR, Marketing writing. AP style capitalizes words of 4 or more letters. Short prepositions, articles, and conjunctions under 4 letters are lowercase. When your work will be reviewed, published, or cited within these fields, using the correct capitalization style shows attention to detail and compliance with professional standards.
AP Title Case vs Other Styles
Title capitalization is not universal. The same title formatted in AP style will look different from APA, Chicago, MLA, or AP — and each difference is intentional. Use the style comparison tool to enter your title and see all nine styles side by side. If you need to convert a large list of titles, the batch capitalizer handles CSV and TXT imports for bulk workflows.
Deep-dive: AP style title capitalization explained.
How the AP Capitalizer Works
Paste your title into the tool above. Select AP as the active style and the result appears immediately. Click "Explain" to see the rule applied to each word. Use the copy button or press ⌘↵ to copy the output. Everything runs in the browser — no account, no signup, no data sent to a server.
About AP Title Case
AP title case is defined by the Associated Press Stylebook and is the standard for US newspapers, wire services, broadcast journalism, and most digital news organizations. AP uses a simple length-based rule: capitalize any word of four or more letters, regardless of its grammatical category. This means prepositions like "with," "from," "into," and "over" — which other styles lowercase — are capitalized in AP. The rule is designed to be fast and easy to apply under deadline pressure. Journalists can apply it without consulting a style guide: count the letters, and capitalize at four or more.
AP Title Case Examples
These examples are generated in real time by the same engine that powers the tool above — every result is guaranteed to match the tool's output.
| Original (lowercase) | AP Style |
|---|---|
| the quick brown fox jumps over the lazy dog | The Quick Brown Fox Jumps Over the Lazy Dog |
| a guide to writing about the world | A Guide to Writing About the World |
| why sleep is important for students | Why Sleep Is Important for Students |
| learning through failure and success | Learning Through Failure and Success |
| notes on the art of writing without fear | Notes on the Art of Writing Without Fear |
| how to capitalize titles in academic writing | How to Capitalize Titles in Academic Writing |
| the effects of social media on mental health | The Effects of Social Media on Mental Health |
| introduction to machine learning with python | Introduction to Machine Learning With Python |
Common AP Edge Cases
- "With" (4 letters) is capitalized in AP — this surprises writers familiar with Chicago or APA.
- "From," "into," "over," "upon," "like," and "onto" (all 4 letters) are capitalized in AP.
- "To" in infinitives is capitalized in AP style: "How To Write" — unlike APA, Chicago, and MLA.
- "The" (3 letters) stays lowercase mid-title; "An" (2 letters) stays lowercase.
- Many AP news websites use sentence case for headlines, while formal composition titles use AP title case.
AP vs NY Times
AP and NY Times styles are closely related — both are journalism standards and both capitalize words above a length threshold. The key difference is in that threshold: AP capitalizes words of 4 or more letters, while NY Times uses a threshold of 3 or more letters for some categories but applies its own house exceptions. In practice, NY Times style produces slightly fewer capitalizations than AP, particularly for short prepositions in the 3–4 letter range. Both styles are appropriate for journalism contexts.
AP capitalization FAQ
Common questions about using TitleCasePro for AP title case.
The AP title capitalizer applies Associated Press Stylebook capitalization rules to any title instantly. AP style is standard for journalism, news writing, and digital media. Select AP, paste your title, and the result appears immediately.
AP style capitalizes all words of four or more letters and lowercases articles (a, an, the), prepositions of fewer than four letters, and coordinating conjunctions. For example: "The Girl With the Dragon Tattoo" — "With" is capitalized (4 letters), "the" stays lowercase.
Yes. TitleCasePro follows the AP Stylebook length-based rule: words of four or more letters are capitalized. Short articles, prepositions, and conjunctions are lowercase.
AP capitalizes every word of four or more letters, including prepositions like "From," "With," "Into," and "Over." It lowercases articles (a, an, the), short conjunctions (and, but, or), and prepositions of three or fewer letters (at, by, of, on, to, up).
Yes. Click "Explain" to see each word labeled — for example, "from — 4 letters, capitalized per AP style" or "the — article, lowercase per AP style."
Yes. Use the Copy button next to the output or press ⌘↵ to copy the AP-formatted title to your clipboard.
Yes. The Compare Styles tool shows AP alongside APA, Chicago, MLA, and all other styles at once.
Yes. AP style is the standard for newspaper and digital news article headlines. Paste your headline and the tool applies correct AP capitalization.
Yes. If your publication or class follows AP style, the capitalizer handles your essay title correctly according to AP rules.
Yes. Some trade publishers and media companies follow AP for book titles. The tool applies AP rules accurately.
Yes. AP capitalization applies to section headings and subheadings in journalism-style content. The tool handles these the same way it handles article titles.
Yes. Completely free with no account, signup, or usage limit.
Yes. Runs entirely in your browser — no server upload required.