Sentence Counter

Paste text to count sentences live, with words, characters and average sentence length for readability.

✔ 100% Free✔ No Signup✔ No Watermark✔ Unlimited Use

Updated 2026-07-05 · Built and maintained by the MakeToolz team.

Count the Sentences in Your Text

This free sentence counter tells you how many sentences your text has, live as you type or paste. It also shows words, characters, paragraphs, your average sentence length and your longest sentence, so you can see the shape of your writing at a glance.

Writers and students use it to check assignment rules, editors use average sentence length as a quick readability signal, and marketers use it to keep copy tight. Your text stays in your browser and is never uploaded.

How to Use the Sentence Counter

  1. 1
    Type or paste your text into the box.
  2. 2
    The sentence count and other stats update live with every keystroke.
  3. 3
    Watch average words per sentence, a handy readability guide (aim for roughly 15 to 20).

Why Use MakeToolz's Sentence Counter?

Live sentence count

Counts sentences instantly on every keystroke.

Readability stats

Average and longest sentence length help you spot run-ons.

Six metrics

Sentences, words, characters, paragraphs, average and longest sentence.

Handles ? and !

Counts sentences ending in a period, question mark or exclamation mark.

Private

Runs in your browser; nothing is uploaded.

Free

No signup, no limits.

Frequently Asked Questions

How does the sentence counter count sentences?
It counts each run of text that ends in a period, question mark or exclamation mark as one sentence, which matches how most writing is punctuated.
Why is my sentence count slightly off?
Abbreviations like "Dr." or "e.g." contain periods that can read as sentence ends, and a missing final period can merge two sentences. For most text the count is accurate.
What is a good average sentence length?
Around 15 to 20 words per sentence is easy to read. Much higher suggests run-on sentences; much lower can feel choppy. The average here helps you tune it.
Does it work for essays and articles?
Yes. Paste any length of text and it counts sentences, words and paragraphs, which is handy for hitting essay targets or checking readability.

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