Sentence Counter

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

โœ” 100% Freeโœ” No Signupโœ” No Watermarkโœ” Unlimited Use

Updated 2026-08-07 ยท 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.

Who Uses a Sentence Counter and Why

Students use a sentence counter to keep essays and paragraphs tidy. A teacher might ask for a five-sentence paragraph or a summary of no more than three sentences. Instead of counting by hand and losing your place, you paste the text and the number updates right away. It also helps you spot a paragraph that has grown into one giant run-on that needs breaking up.

Writers, editors, and marketers lean on it for a different reason: rhythm. Ad copy, email subject lines, and meta descriptions often need to fit a certain shape. Seeing your sentence count next to your word and character totals makes it easy to trim a bloated sentence or split a dense one. The tool is free, runs fully in your browser, and your text is never uploaded to a server, so you can paste private drafts without worry.

How to Get the Best Result

Paste or type your text into the box and read the count as it updates. The tool looks for sentence-ending marks like the period, question mark, and exclamation point to decide where one sentence stops and the next begins. For clean, well-punctuated writing, the count will match what you expect almost every time.

A few habits make the count more reliable and your writing stronger at the same time:

  • End every sentence with real punctuation so nothing gets merged by accident.
  • Watch abbreviations like Dr., e.g., or U.S., since a period there can look like a sentence break.
  • Use the average sentence length to catch writing that feels choppy or, the opposite, too dense.
  • Check the longest sentence readout and rewrite anything that runs past 30 or 40 words.
  • Paste one section at a time when you want to measure a single paragraph instead of a whole document.

Common Uses and Quick Tips

The most common use is meeting a limit. School assignments, scholarship forms, and product descriptions often cap sentences or ask for a set number. A quick paste tells you where you stand without guesswork. Editors also use it to compare two drafts and see which one says more in fewer sentences.

Another handy use is readability tuning. Short sentences read fast and feel punchy, while longer ones carry more detail but tire the reader. By glancing at your average and your longest sentence together, you can vary your rhythm on purpose. Mixing short and medium sentences keeps a page easy to read, which matters for essays, blog posts, and web copy alike.

Sentence Length Reference

Average sentence lengthHow it readsBest used for
8 to 12 wordsFast and punchy, sometimes choppyAds, social posts, calls to action
14 to 20 wordsClear and easy to followBlog posts, web pages, general writing
21 to 25 wordsDetailed but still readableReports, essays, formal articles
26 words and upDense, harder to scanRare, split most of these up

People Also Ask

Is this sentence counter free to use?

Yes, the sentence counter is completely free with no account or sign-up needed. You can use it as many times as you like.

Does my text get uploaded anywhere?

No, everything runs right in your browser and your text never leaves your device. Nothing is sent to a server or stored.

Can I count sentences in a pasted Word or Google Docs document?

Yes, just copy the text and paste it into the box, and the count updates instantly. Formatting is ignored, so only the words and punctuation matter.

How do I count sentences in a single paragraph only?

Paste just that one paragraph into the box instead of the whole document. The count will reflect only the text you pasted.

Does the tool count questions and exclamations as sentences?

Yes, a question mark or an exclamation point ends a sentence just like a period does. Each one is counted as its own sentence.

Can I use the sentence counter on my phone?

Yes, it works in any modern mobile browser with no app to install. Paste your text and the counts appear the same way they do on a desktop.

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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