Sentence Counter: Count and Length

This sentence counter tells you how many sentences are in your text and how long each one is. Paste an essay, article, email or story to see the sentence count, average words per sentence, the longest and shortest sentence, and how many are questions or exclamations. Every sentence is listed with its word count, and sentences over 25 words are flagged so you can split them for easier reading. Smart rules keep abbreviations like Mr., Dr., U.S. and a.m., decimals like 3.5, and ellipses from being counted as sentence breaks. It runs in your browser, so nothing is uploaded.

Sentence Counter

Count sentences, see average sentence length and find long sentences to shorten. Handles Mr., Dr., U.S. and decimals.

Everything runs in your browser. Nothing you type is sent to a server.

How to use the Sentence Counter

  1. Paste or type your text.
  2. Read the sentence count and average sentence length.
  3. Scan the list for sentences marked Long or Very long.
  4. Download the list as CSV if you need it.

Features

  • Accurate sentence count with abbreviation rules
  • Average, longest and shortest sentence length
  • Flags sentences over 25 and 35 words
  • Question and exclamation counts
  • Per-sentence table with CSV export
  • Private, runs in your browser

Frequently asked questions

How does the sentence counter decide where a sentence ends?

A sentence ends at a period, question mark or exclamation point followed by a space and a capital letter, or at a blank line. Common abbreviations such as Mr., Dr., U.S. and e.g. are not treated as endings.

What is a good average sentence length?

For most web and business writing, 15 to 20 words per sentence reads well. Many style guides suggest keeping most sentences under 25 words.

How many sentences are in a paragraph?

There is no fixed rule, but most paragraphs have 3 to 5 sentences. Web writing often uses shorter paragraphs of 1 to 3 sentences.

Does it count words too?

Yes, it shows the total word count and words per sentence. For characters and reading time, try our Word Counter.

Is my text saved or uploaded?

No. The text stays in your browser and is not stored.

Guide to sentence endings: punctuation followed by a space and capital letter ends a sentence, while abbreviations like Dr. and U.S., decimals and ellipses do not
How the sentence counter finds sentence endings.
Example text Dr. Smith arrived. Was the U.S. team late? No! split into 3 sentences: one statement, one question and one exclamation
Worked example: abbreviations do not split sentences.