Reading Level Analyzer

Summary

The Reading Level Analyzer evaluates any English text against four industry-standard readability formulas: Flesch Reading Ease (0–100 scale, higher is easier), Flesch-Kincaid Grade Level (US school grade), Gunning Fog Index (years of education needed), and SMOG Index (grade level based on polysyllabic words). All four scores update instantly as you type or paste, giving you a comprehensive view of how accessible your writing is.

How it works

1. Paste or type your text into the input area on the left.
2. The tool automatically counts sentences, words, syllables, and complex words.
3. Four readability formulas run in real time and display grade-level scores.
4. A color-coded badge shows whether the text is easy, moderate, or difficult.
5. Use the summary panel to compare all four scores side by side.
6. Review the word and sentence statistics to pinpoint what drives the score.

Use cases

• Check whether blog posts or articles match your target audience's reading level.
• Simplify legal or medical documents to improve patient or client comprehension.
• Ensure educational materials align with the appropriate school grade.
• Optimize marketing copy to be accessible for a broad consumer audience.
• Evaluate academic writing for journals that require a specific complexity level.
• Compare readability across multiple drafts to track improvements.
• Audit website content for plain-language compliance.
• Help ESL writers gauge whether their English text reads naturally.

Frequently Asked Questions