Sentence Case Converter
Capitalize the first letter of each sentence. Paste your text below.
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What is Sentence Case?
Sentence case is the standard capitalization style used in most English writing. Only the first letter of each sentence is capitalized, while all other letters remain lowercase.
When to Use Sentence Case
- Body text — Standard for paragraphs and articles
- Paragraphs — After periods, exclamation marks, and question marks
- Lists — When list items are complete sentences
- Captions — Under images and figures
Examples
Input: "hello world. how are you? i am fine!"
Output: "Hello world. How are you? I am fine!"
Input: "the quick brown fox jumps over the lazy dog. the end."
Output: "The quick brown fox jumps over the lazy dog. The end."
Sentence Case vs. Title Case
Sentence case capitalizes only the first word of each sentence.Title case capitalizes the first letter of each significant word. Use sentence case for body text and title case for headings and titles.
Style Guide Differences
- APA Style — Uses sentence case for headings and titles
- MLA Style — Uses title case for headings
- Chicago Style — Uses title case for headings
- AP Style — Uses title case for headlines
Frequently Asked Questions
What is the difference between sentence case and lowercase?
Sentence case capitalizes the first letter of each sentence. lowercase converts all letters to lowercase. Sentence case is standard for body text.
How do I convert to sentence case in Microsoft Word?
Select your text and press Shift+F3 to cycle through cases. Word will cycle through uppercase, lowercase, and capitalized (not true sentence case). For precise sentence case, use ConverteCaixa.
Does sentence case work with multiple paragraphs?
Yes. ConverteCaixa handles multiple paragraphs correctly, capitalizing the first letter after each paragraph break.
What about abbreviations and acronyms?
Sentence case does not affect uppercase abbreviations and acronyms like "NASA" or "USA" that are already uppercase. Only the first letter of each sentence is capitalized.