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Sentence Counter

Count sentences and see your average sentence length.

Sentences
0
Words per sentence
0.0
Words
0
Characters
0
Characters (no spaces)
0
Paragraphs
0
Reading time
0 sec
Speaking time
0 sec
Lines
0
Unique words
0

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Longest sentences

Your three longest sentences appear here, so you can check them for readability.

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How to use the sentence counter

Three steps, all in your browser.

  1. 1

    Add your text

    Type, paste or open a .txt file. Press Sample to try an example.

  2. 2

    Watch the counts

    Every figure updates as you type. Pick a speed or option if you need one.

  3. 3

    Use the numbers

    All figures sit next to your text. Edit and they update.

Sentence Counter: what to know

The sentence counter counts how many sentences your text has and the average number of words per sentence, so you can see at a glance whether your writing is easy to follow.

A sentence ends with a period, a question mark, an exclamation mark or an ellipsis that's followed by a space or the end of the text. Periods inside decimals (3.14), after common abbreviations (Dr., Mr., e.g., i.e.) and after initials (J. K. Rowling) don't end a sentence. A blank line also ends one, so headings and list items without a final period are still counted.

The rules are simple and predictable rather than perfect. An abbreviation at the very end of a sentence, or a title without punctuation run straight into the next line, can shift the count by one.

Popular uses

  • Checking readability: long average sentences are harder to read
  • Meeting sentence-count requirements in school assignments
  • Balancing short and long sentences in marketing copy
  • Comparing the rhythm of two drafts

Tips for the best result

  • If your average is high, look for sentences joined with 'and' or 'which' that could be split.
  • Bullet lists without periods count one sentence per paragraph block, so add periods if each item should count.
  • Use the word counter for the full set of figures, including reading time.

Read how JustYourText works and our privacy details. Text you type or paste is processed in your browser and is never sent to our server.

Frequently asked questions

A sentence ends with a period, question mark, exclamation mark or ellipsis followed by a space or the end of the text, or at a blank line. Periods in decimals (3.14), common abbreviations (Dr., Mr., e.g.) and initials (J. K.) don't end a sentence.

Many plain-language style guides suggest aiming for an average of around 15 to 20 words, while mixing short and long sentences. Use the average here as a prompt to check long sentences, not as a strict rule.

No. Every tool runs in your browser, so the text you type or paste is processed on your device and is not sent to our server or stored. Reloading or closing the page clears it.

Yes. Every tool is free with no sign-up and no limits on use. Clearly labeled ads keep it that way.

Yes. The tools work in any modern browser on phones, tablets and computers. Copy and Download work on mobile too.