Sentence Counter
Count sentences, see the average sentence length and spot overly long sentences.
Runs in your browser — nothing is uploaded0 characters · 0 words
Statistics
- Sentences
- 0
- Words
- 0
- Avg. words / sentence
- 0
- Longest (words)
- 0
- Shortest (words)
- 0
About Sentence Counter
Long, complicated sentences make writing harder to read. The Sentence Counter counts sentences, calculates the average sentence length and highlights the longest sentence so you can shorten it.
Readability guides commonly recommend an average of 15–20 words per sentence for general audiences. Use the results to make essays, articles, emails and web content clearer.
When to use it
- Improving readability of blog posts and web pages.
- Editing essays, reports and research papers.
- Writing clear instructions and documentation.
- Checking content written for children or language learners.
Tips for better results
- Split sentences over 25–30 words into two.
- Mix short and long sentences to create a natural rhythm.
- Read long sentences aloud — if you run out of breath, shorten them.
How to use the Sentence Counter
- Type or paste your text.
- See the sentence count and average length.
- Review the longest sentence and shorten it if needed.
Frequently asked questions
What counts as a sentence?
A sentence ends with a full stop, question mark, exclamation mark or ellipsis followed by a space or the end of the text. Numbers like 3.14 and web addresses are not split.
Are abbreviations handled?
Abbreviations such as "e.g." or "Mr." followed by a space may be counted as a sentence end. Treat the count as a close estimate for text with many abbreviations.
What is a good average sentence length?
For most web content and business writing, 15–20 words is easy to read. Academic writing is often longer; content for broad audiences benefits from shorter sentences.
Why does sentence length matter for SEO?
Search engines reward content that satisfies readers. Clear, easy-to-read text keeps visitors on the page longer, which supports better engagement.