Readability Score Checker
Check how readable your writing is with the Flesch Reading Ease score and Flesch–Kincaid grade level, plus word and sentence counts. Great for SEO and clear writing.
Reliable for English only · syllable counts are heuristic estimates.
Flesch Reading Ease calculation
Enter English text to see substituted values.
Flesch–Kincaid Grade calculation
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SMOG calculation
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Coleman–Liau calculation
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Grade level reference
| Score | Reading ease | US grade | Audience |
|---|---|---|---|
| 90–100 | Very easy | 5th grade | Children, simple instructions |
| 80–89 | Easy | 6th grade | Conversational blogs, FAQs |
| 70–79 | Fairly easy | 7th grade | Marketing copy, newsletters |
| 60–69 | Plain English | 8th–9th grade | General web content (target zone) |
| 50–59 | Fairly difficult | 10th–12th grade | Technical blogs, policy pages |
| 30–49 | Difficult | College | Academic, legal prose |
| 0–29 | Very difficult | College graduate | Scientific papers, dense manuals |
Keyword density? Word frequency counter · full stats: Word counter · draft in: Online notepad.
Check how readable your English writing is
Compare Flesch Reading Ease, Flesch–Kincaid, SMOG, and Coleman–Liau scores with transparent input counts and short-sample warnings.
FAQ
What is the Flesch Reading Ease score?
A 0–100 score where higher is easier to read. 60–70 is plain English; below 30 is very hard (academic).
What do the grade-level scores measure?
Flesch–Kincaid uses words, sentences, and estimated syllables. SMOG focuses on words with three or more syllables. Coleman–Liau uses letters and sentences instead of syllables.
Does this work for every language?
No. These formulas are reliable for English only, and syllable counts are heuristic estimates. Text with more than 30% non-Latin letters is not scored.
Is my text uploaded?
No. The analysis runs entirely in your browser.
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