Readability Score Checker

The Flesch-Kincaid Reading Ease score rates text on a 0-100 scale. Higher scores mean easier reading. A score of 60-70 is considered ideal for general audiences, roughly equivalent to 8th-9th grade English. The formula considers sentence length and average syllables per word.

For web content, aim for a Flesch Reading Ease score of 60-80 (Easy to Very Easy). Most successful blog posts, marketing copy, and landing pages target a 6th-8th grade reading level. This ensures your content is accessible to the widest possible audience without dumbing it down.

Each formula uses different inputs. Flesch-Kincaid uses sentence length and syllables per word. Coleman-Liau uses character counts instead of syllables. The Automated Readability Index (ARI) uses characters per word and words per sentence. SMOG Grade focuses specifically on polysyllabic words (3+ syllables) and requires at least 30 sentences for ideal accuracy.

No. This readability checker runs entirely in your browser using client-side JavaScript. Your text never leaves your device and is not stored, logged, or transmitted anywhere. You can safely analyze confidential or sensitive content.

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