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Reading Level Checker.

Paste any text. We'll show its Flesch reading ease, Flesch-Kincaid grade, average sentence length, and the longest sentences worth rewriting.

58 words3 sentences84 syllables

Scores

Flesch Reading Ease64.7Plain English — 8–9th
Grade Level9Middle school — clear
Avg Sentence19.3words per sentence
Avg Syllables1.45per word

Aim for grade 6–8 for marketing copy, 8–10 for B2B, 10–12 for technical docs. Anything 14+ reads like a legal contract.

Longest sentences worth rewriting

  • 37 words

    Long, qualifier-heavy sentences that pile clause on clause and never quite land — like this one, which keeps going past the point at which any reasonable reader would have already moved on — can quietly tank your readability score

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