A free online sentence counter that instantly counts sentences, words, characters, and paragraphs — abbreviations, decimals, and URLs filtered automatically, so every count is accurate.
How to Use This Sentence Counter Tool
Paste your text into the box above. The sentence count, word count, character count, and every other metric update the instant you start typing — no button, no delay, no page reload.
Handling PDF and Compressed Text
PDFs exported without spaces after periods cause two sentences to merge into one, throwing off your count. Enable the Fix Formatting checkbox before you paste your text and the tool inserts that missing space automatically, giving you an accurate sentence count even on poorly formatted source material.
Quick tip: Use Copy Stats to export your sentence count, word count, character count, paragraph count, and reading time as a plain-text summary — useful for pasting directly into a brief or client report.
Sentence Count, Word Count, and Five Other Metrics — All Live
This free online sentence counter tracks six figures simultaneously so you can analyze your text without switching between tools.
Sentence Count and Words Per Sentence
The total number of sentences is the primary metric. Dividing word count by sentence count gives you average sentence length — the single biggest input into Flesch Reading Ease, Flesch–Kincaid Grade, and Gunning Fog readability scores. The progress bar maps that average to a visual zone so structural problems are obvious at a glance.
Word Counter and Character Count
Word count runs alongside sentence count at all times. The character counter shows totals both with and without spaces — the two figures you need for meta descriptions, social bios, SMS copy, and any other format with a hard character limit. Neither Microsoft Word nor Google Docs exposes the number of sentences in their stats panel; this tool fills that gap.
Paragraph Counter and Reading Time
The paragraph counter shows how many blocks your text contains. Two to four sentences per paragraph is standard for web copy; four to six suits academic writing. Reading time is calculated at 200 words per minute, the commonly cited average for adult silent reading.
Sentence Length, Sentence Variety, and Readability
Keep your average sentence length between 14 and 18 words and your Flesch Reading Ease score stays in the 60–70 range — the accepted target for most web copy and business communications. Push above 25 words per sentence and comprehension drops measurably. Drop below 10 and the writing can feel abrupt.
Sentence variety matters just as much as average length. Mixing short sentences with longer ones creates natural rhythm and prevents the monotone cadence that makes readers disengage. Use the readability band below the progress bar to track whether your draft sits in the short, ideal, or long zone — then adjust accordingly.
Who Uses a Sentence Counter — and Why
Students paste in research papers to count sentences, catch run-ons, and confirm they have met word count requirements before submission. Bloggers and SEOs use average sentence length as a quick on-page readability signal. Copywriters working on professional writing keep their sentence averages tight — 10 to 14 words — for maximum impact. Content creators check sentence structure and paragraph density before publishing. Speakers use sentence count to pace scripts, aiming for one breath per sentence.
| Writer type | Primary use | Target avg words / sentence |
|---|---|---|
| Students | Verify word count requirements; identify run-ons in research papers | 15–20 |
| Bloggers & SEOs | Track sentence structure for on-page readability | 14–18 |
| Copywriters | Concise, high-impact professional writing | 10–14 |
| Speakers | Pace scripts — one breath per sentence | 12–16 |
| Content creators | Hit writing goals; check block density before publishing | 14–18 |