Reading Level
Flesch-Kincaid, grade level, SMOG
About Reading Level
A reading-level analyser scores text on Flesch-Kincaid, Gunning Fog, SMOG, Coleman-Liau, and other readability formulas. Useful for writers calibrating to an audience — children's books target grade 2-4; mass-market fiction 6-8; technical writing 12+ — and educators evaluating material.
Frequently asked questions
They mostly agree. Flesch-Kincaid Grade Level is the de-facto US standard. Use multiple as a sanity check.
Mass-market writing: grade 6-8. Plain-language law / medical: grade 8. Academic: 12+. The 'right' level depends on your audience.
Best for English. Languages with very different syllable structures (CJK, Arabic) need language-specific formulas.
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