Readability Score Checker

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Readability Score Checker

Paste any text to get Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog Index, and more.

Readability Score Reference Table

Flesch ScoreReading EaseGrade LevelAudience
90–100Very Easy5th gradeChild / Elementary
80–90Easy6th gradeMiddle School
70–80Fairly Easy7th gradeGeneral Consumer
60–70Standard8th–9th gradeGeneral Adult
50–60Fairly Difficult10th–12th gradeHigh School
30–50DifficultCollegeCollege Graduate
0–30Very DifficultCollege+Professional / Academic

Frequently Asked Questions

The Flesch Reading Ease score (0–100) measures how easy text is to read. Higher scores = easier. The formula is: 206.835 − (1.015 × words/sentences) − (84.6 × syllables/words). Scores of 60–70 are considered standard for adult readers. Most newspapers target 60–70. Plain language guidelines suggest 60–80 for public-facing content. Legal and technical documents often score 30–50.

For general web content: aim for a Flesch score of 60–70 and grade level 8–9. For blog posts targeting a broad audience: 70–80 (grade 7). For medical patient information: 60–70 (8th grade or below) — research shows patients understand information better at this level. For Google's AI overviews and featured snippets: shorter sentences and simpler vocabulary improve your chances of being selected.

1. Shorten sentences — aim for 15–20 words per sentence average. 2. Use simpler words — replace "utilize" with "use", "assistance" with "help". 3. Break up paragraphs — 3–4 sentences max per paragraph. 4. Use active voice — "The team completed the project" not "The project was completed by the team." 5. Use bullet lists for complex information.