Sentence Counter
Count sentences, words, characters and paragraphs in any text instantly, with average sentence length.
Results
The 7ESL Sentence Counter counts the sentences in any text instantly, together with words, characters, paragraphs and, the figure that matters most for style, the average number of words per sentence. Paste your writing and the numbers update live as you type or edit, so you can watch the structure of your text change while you revise it.
What the numbers tell you
The sentence count itself answers practical questions: whether your abstract is inside the journal's sentence limit, whether each paragraph of your essay carries more than one idea, or whether a translation kept the structure of the source. The average words per sentence figure is the real style signal. Most professional non-fiction averages between 15 and 20 words per sentence; popular journalism often sits closer to 12. Once the average climbs past 25, most readers start to lose the thread, and readability scores fall fast. If your average is high, the fix is rarely cutting words; it is splitting sentences.
How sentences are counted
The counter treats a sentence as a stretch of text ending in a full stop, question mark or exclamation mark followed by a space or the end of the text. Text without any terminal punctuation counts as one sentence. Paragraphs are blocks of text separated by an empty line. Everything is computed in your browser as you type, and your text is never uploaded or stored.
Using the counter while you edit
The live update makes the tool a practical editing companion rather than a one-off checker. Paste a heavy paragraph, split its longest sentence in two, and watch the average drop immediately. Students use it to meet "no more than X sentences" instructions; teachers use it to set them. Writers preparing text for the web aim for shorter averages than print allows, because screens punish long sentences. When the structure looks right, run the same text through the Readability Checker for a grade-level score, or the Reading Time Calculator to see how many minutes you are asking of your reader.
Frequently asked questions
How does the sentence counter work?
It counts every stretch of text that ends in a full stop, question mark or exclamation mark followed by a space or the end of the text. Text without terminal punctuation counts as one sentence. The count updates live as you type or paste.
What is a good average sentence length?
Most clear non-fiction averages 15 to 20 words per sentence, and popular web writing often sits nearer 12. Averages above 25 words per sentence make text noticeably harder to follow and lower readability scores.
Does the tool also count words and paragraphs?
Yes. Alongside sentences it shows words, characters, paragraphs and the average number of words per sentence, all updating live in the same panel.
How are paragraphs counted?
A paragraph is a block of text separated from the next by at least one empty line, which matches how paragraphs are written in plain text and in most editors.
Is my text kept private?
Yes. All counting happens in your browser. Nothing you paste is uploaded, stored or shared.