Text Readability Scorer

The Flesch Reading Ease score (0-100) measures how easy a text is to read. Higher scores indicate simpler language. A score of 60-70 is considered easily understood by 13-15 year olds, while 30-50 represents college-level difficulty. It is calculated using average sentence length and average syllables per word.

It translates the Reading Ease score into a U.S. school grade level (e.g., 8.0 = 8th grade). The formula uses the same metrics—average sentence length and syllables per word—to approximate the years of education required to understand the text.

ARI uses characters per word and words per sentence instead of syllables, making it easier to compute automatically. Like FK Grade Level, it outputs an approximate U.S. grade level. It’s widely used for technical documentation and online content.

Search engines prioritize content that is clear and user-friendly. Highly readable text reduces bounce rates and increases engagement, indirectly improving rankings. Tools like this help optimize your writing for a broader audience.

Yes, absolutely. There's no word limit, registration, or hidden cost. It runs entirely in your browser, so your text never leaves your device.