Sentence Counter

What is the Sentence Counter?

Count sentences and get average sentence length. Counting sentences and average sentence length shows whether writing is easy to follow, since long sentences are a common cause of hard-to-read text.

How to use the Sentence Counter

1. Paste or type your your text into the box (a sample is pre-filled so you can see how it works).
2. Results update automatically as you type; you can also press Calculate.
3. Read the output: sentences, average words per sentence, words.
4. Use the 📊 chart to see the result visually, then copy or share it.

Formula and method

Worked example

With the sample input, the Sentence Counter returns sentences: 3; average words per sentence: 12.7; words: 38.

Where the Sentence Counter helps in real life

You are editing a blog post and it feels heavy to read. The counter shows an average of 28 words per sentence, a sign that splitting a few long sentences would help.

A student has an assignment that asks for exactly ten sentences. Pasting the answer confirms the count before submitting.

Common mistakes to avoid

• Counting abbreviations like “e.g.” as sentence ends.
• Treating bullet points without periods as one long sentence.
• Aiming for very short sentences everywhere, which sounds choppy.
• Ignoring sentence variety when shortening.

💡 Practical tip: If your average sentence is over about 25 words, splitting the longest few usually improves readability most.

Tips for better results

• Aim for an average of roughly 15–20 words per sentence for general readers.
• Mix short and longer sentences for rhythm.
• Use the readability checker for a fuller picture.

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