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Title Case Rules: Which Words to Capitalise in a Headline

Updated: 2026-11-02

Should it be “How to Write a Headline” or “How to write a headline”? Both are correct, it depends on the style and the language.

Title case vs sentence case

The title case rules

  1. Always capitalise the first and last word.
  2. Capitalise nouns, verbs, adjectives, adverbs and pronouns, including short ones like “Is”, “Be” and “It”.
  3. Keep articles (a, an, the), coordinating conjunctions (and, but, or, nor) and short prepositions (to, of, in, on, at, by, for) lowercase.
  4. Capitalise the word after a colon.
  5. In hyphenated words, capitalise both parts: “Step-by-Step”, “Long-Term”.

Example

“what is the best way to learn a language in 2026” → “What Is the Best Way to Learn a Language in 2026”.

AP vs Chicago

The two main American guides differ on prepositions: AP style capitalises all words of four letters or more (“With”, “From”), while Chicago lowercases all prepositions regardless of length (“with”, “from”). Pick one and use it consistently.

Other languages

Convert any text in one click with the case converter.

Sources: The Chicago Manual of Style, 18th ed., §8.160; The Associated Press Stylebook; Académie française and RAE (Ortografía de la lengua española, 2010) guidance on capitals; Duden.

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