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Sentence Counter

Count sentences and find the ones that run too long to read.

Text Tools Reviews Free · no sign-up
0Sentences
0Words
0Avg words
0Longest
0Over 25 words

Quick Tool Overview

The Sentence Counter counts the sentences in your text and shows how long each one runs. Alongside the total it reports the average sentence length, the longest sentence and how many are over 25 words, so the sentence that needs splitting is easy to find.

What it does
Counts sentences and flags the ones that run too long
You give it
Any block of writing
You get back
Totals, averages and a per-sentence breakdown with word counts
Best for
Editing passes, readability work and assignments set in sentences
Text Tools Free, unlimited use No sign-up Runs in your browser

About the Sentence Counter

Word counts are easy to hit and tell you nothing about how the writing reads. Sentence counts do. Paste any text and you get the number of sentences, the average sentence length, the longest one, and how many are running over 25 words.

The breakdown underneath lists every sentence with its own word count and flags the long ones, so the sentence that needs splitting in two is easy to find rather than something you have to hunt for. It is built for editing passes, for assignments set in sentences rather than words, and for web copy that has to survive being read on a phone.

The counter knows that the full stop in Dr., e.g. and 3.5 does not end a sentence, so common abbreviations and decimal numbers no longer inflate the total the way they do in a naive split.

Key features of the Sentence Counter

Abbreviation-aware splitting

The full stop in "Dr.", "e.g." and "3.5" does not end a sentence, so the total is not inflated the way a naive split inflates it.

Long-sentence flagging

Every sentence over 25 words is marked, which is the practical threshold where web copy starts to lose readers.

Average and longest

Two numbers that tell you more about how the writing reads than a word count ever does.

Full breakdown

Each sentence is listed with its own word count, so you edit the specific offender instead of hunting for it.

Live results

Recounts as you rewrite, so you can watch a flagged sentence clear once you split it in two.

How to use the Sentence Counter

  1. 1

    Paste your text

    Drop in a paragraph, an essay or a whole article. The counts update as you type.

  2. 2

    Read the totals

    Sentences, words, average sentence length and the longest sentence are shown above the box.

  3. 3

    Scan the breakdown

    Every sentence is listed with its word count, and anything over 25 words is flagged in amber.

  4. 4

    Split what is flagged

    Break the long sentences in two, then watch the average drop as you edit.

Frequently asked questions

A full stop, question mark, exclamation mark or ellipsis followed by a space or the end of the text ends a sentence. A list of common abbreviations such as Mr., Dr., e.g. and i.e., along with decimal numbers, is excluded so those full stops do not split a sentence in half.

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