Free Readability Checker & Grade Level Calculator
Ensure your writing is clear, engaging, and easy to understand. Measure Flesch Reading Ease, grade level, average sentence length, and complex word ratios instantly in your browser.
Appropriate for readers with a 10th grade reading level or higher.
Readability Improvement Suggestions
- Great job! Your text is clear, direct, and accessible to a broad web audience.
The Flesch formulas are calibrated for English text. While Google does not use Flesch scores as a direct organic ranking signal, readable content directly improves user engagement, dwell time, and comprehension, while reducing bounce rates.
How to Use the Free Readability Checker
Paste your blog post, sales copy, or article into the text area. The analyzer immediately computes your Flesch Reading Ease score, Flesch-Kincaid Grade Level, average sentence length, syllable distribution, and complex word percentage. Review highlighted long sentences and actionable suggestions to rewrite difficult phrasing into plain, engaging language.
Insert Your Writing
Paste your drafted paragraph, article, or marketing copy into the editor.
Check Flesch & Grade Scores
Review your Reading Ease score (0–100) and target school grade level.
Refine Complex Sentences
Identify sentences over 25 words and simplify multi-syllable jargon.
Why Content Readability Matters for SEO and Engagement
Online readers scan quickly and abandon pages with convoluted, dense text. While readability is not a direct Google ranking factor, accessible writing directly impacts behavioral metrics like dwell time, bounce rates, and organic conversions. Articles written at an 8th-to-9th-grade reading level reach the widest audience, satisfy search intent faster, and earn more backlinks.
Want this done for you?
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Frequently Asked Questions
Clear answers to common questions about how this tool works, search engine behavior, and practical SEO best practices.
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