Sentence Counter

Paste your text and instantly see sentence count, word count, paragraphs, average words per sentence, reading time, and your longest and shortest sentences.

Sentence Statistics

Sentences

0

Words

0

Characters

0

Paragraphs

0

Avg Words / Sentence

0

Reading Time

0 min

Why Count Sentences?

Sentence analysis goes beyond counting words. Knowing how many sentences you have, how long they are on average, and whether any are excessively long or short helps you improve clarity, readability, and writing quality. Good writers vary their sentence length deliberately to create rhythm and keep readers engaged.

Sentence Length Guidelines by Content Type

Content TypeAvg Words/Sentence
Blog posts & web content15–20
Social media captions5–12
Academic essays20–25
News articles20–25
Legal documents25–35
Children's books5–10

Frequently Asked Questions

How are sentences counted?

Sentences are counted by splitting text at sentence-ending punctuation marks: full stops (.), exclamation marks (!), and question marks (?). Each resulting non-empty segment is counted as one sentence.

What is the average words per sentence for good writing?

Most readability experts recommend 15–20 words per sentence for general web content. Academic writing typically runs 20–25 words per sentence. Short sentences (under 10 words) are easier to read but can feel abrupt.

How is reading time calculated?

Reading time is estimated at 200 words per minute — the widely cited average adult silent reading speed. A 1,000-word article gives a reading time of approximately 5 minutes.

What is a good sentence count for a blog post?

A 1,500-word blog post at 15 words per sentence would contain around 100 sentences. There is no fixed ideal, but varying sentence length — mixing short and long sentences — improves readability and engagement.

How does the longest sentence detection work?

The tool splits your text into sentences and measures the word count of each. The sentence with the highest word count is shown as the longest sentence, along with how many words it contains.

Does the sentence counter work with multiple paragraphs?

Yes. Paragraphs are detected as blocks of text separated by blank lines (two or more newlines). The counter accurately handles single-paragraph and multi-paragraph texts.

Can I use this for academic or essay writing?

Yes. The sentence counter is useful for checking that your essay meets word count requirements, that sentences are not too long (which lowers readability scores), and that paragraphs are appropriately sized.

Is sentence counting accurate for non-English text?

The tool uses punctuation-based sentence detection which works for any language that uses . ! ? as sentence terminators. Languages with different conventions (e.g. Chinese full stops ,。) may not be detected as accurately.

Related Text Tools