Count sentences, paragraphs, lines and words in your text instantly. Great for essays, articles and writing analysis.
Our sentence counter identifies sentence boundaries using punctuation marks (full stops, exclamation marks, question marks and ellipses) and groups lines into paragraphs by detecting blank lines between them. All analysis happens instantly in your browser.
The tool detects sentence-ending punctuation: full stops (.), exclamation marks (!), question marks (?) and ellipses (…). Each complete unit of text ending in one of these counts as one sentence.
A paragraph is any block of text separated from the next block by a blank line. If your text has no blank lines, it counts as one paragraph regardless of length.
Calculated as total words divided by total sentences. The ideal average for web content is 15–20 words per sentence. Academic writing averages 20–30 words. Anything over 30 words consistently is hard to read.
Calculated as total sentences divided by total paragraphs. Web content ideal: 2–4 sentences per paragraph. Academic essays: 4–6 sentences. Very long paragraphs reduce readability and scan-ability.
Online readers scan rather than read. Short sentences (10–20 words) are far easier to scan. Research shows comprehension drops significantly for sentences over 25 words in digital content.
News writing uses short sentences deliberately. The inverted pyramid structure front-loads information in short, direct sentences. Complex sentences are used only when necessary to convey cause and effect.
Academic prose allows longer sentences to express complex ideas precisely. However even academic readers benefit from sentence variety. Mix complex sentences with shorter ones to improve readability without sacrificing precision.
Google’s quality raters assess readability. Pages with shorter average sentence length tend to have lower bounce rates and higher dwell time — both positive engagement signals for search rankings.