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Text utilities glossary

Sentence Case

Sentence case is a capitalisation style where the first word is capitalised and most other words stay lowercase, apart from proper nouns and names.

Glossary term Capitalisation Plain English

What does sentence case mean?

Sentence case means writing text as you would write a normal sentence: capitalise the first word, keep most other words lowercase and capitalise proper nouns such as names, places and brands.

Plain-English definition

Sentence case means only the first word and proper nouns are capitalised.

Used for Sentences, headings, UI labels, plain-English web copy and article subheadings
Related format Title case

Sentence case examples

Sentence case is often easier to read because it looks closer to normal writing.

Text style Example What happens
Sentence case How to reduce word count Only the first word is capitalised.
Sentence case with proper noun How to write for Google search Google stays capitalised because it is a name.
Normal sentence This is a clear sentence. The sentence starts with a capital letter.

Convert text to sentence case

Use the Case Converter to change pasted text into sentence case, title case, uppercase, lowercase or slug case.

Open Case Converter

Sentence case vs title case

Sentence case and title case are both capitalisation styles, but they handle headings differently.

Style Example Typical use
Sentence case How to improve readability score Plain-English headings, UI labels and readable web copy
Title case How to Improve Readability Score Book titles, formal headings, article titles and title-style formatting

Sentence case usually feels more conversational. Title case usually feels more formal or headline-like.

When to use sentence case

Sentence case works well when clarity and readability matter more than a formal headline style. It is common in modern web design, interface labels and plain-English content.

Website headings Use sentence case when you want headings to feel natural and easy to scan.
Button and menu labels Sentence case often feels cleaner for short UI labels.
Help content Guides, FAQs and support content often use sentence case for readability.
Normal sentences Most body copy is written in sentence case by default.

Basic sentence case rules

  1. Capitalise the first word.
  2. Keep most other words lowercase.
  3. Capitalise names, places, brands and other proper nouns.
  4. Keep acronyms uppercase where appropriate, such as UK, HTML or SEO.
  5. Do not capitalise every major word unless you are using title case.
Example

“free uk character counter” becomes “Free UK character counter”.

Common sentence case mistakes

  • Lowercasing proper nouns: names such as Google, London or Calculatorz should stay capitalised.
  • Changing acronyms incorrectly: terms such as UK, VAT, SEO and HTML usually stay uppercase.
  • Mixing styles: avoid switching between sentence case and title case across similar headings.
  • Forgetting the first word: the first word should start with a capital letter.

How to convert text to sentence case

  1. Copy the text you want to convert.
  2. Paste it into the Case Converter.
  3. Choose the sentence case option.
  4. Review names, acronyms and brand terms manually.
  5. Copy the converted text into your document, page or form.

Automated conversion is helpful, but you should always check proper nouns afterwards.

Sentence case FAQs

Is sentence case correct for headings?

Yes. Sentence case is commonly used for headings, especially in plain-English websites, product interfaces and help content.

Does sentence case capitalise every important word?

No. That is title case. Sentence case usually capitalises only the first word and proper nouns.

Should acronyms stay uppercase in sentence case?

Usually yes. Acronyms such as UK, VAT, SEO and HTML normally stay uppercase.

What tool can convert text to sentence case?

Use the Case Converter to convert pasted text into sentence case and other formats.

Title case Word count Character count

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