Text Readability Analyzer

A score from 0 to 100. Higher is easier: 70–80 is conversational (7th-8th grade). 0–30 is very difficult (college/professional). Most newspapers aim for 60–70. The formula is: 206.835 − 1.015×(words/sentences) − 84.6×(syllables/words).

Most general audiences read comfortably at grade 6–8. Business writing should target grade 8–10. Academic papers are typically grade 12+. For maximum reach (e.g., public health information), aim for grade 6 or below. Plain Language guidelines recommend grade 8 for government documents.

No single formula is universally "most accurate" — they measure different aspects. Flesch-Kincaid is most widely used and cited. Gunning Fog emphasizes complex words. SMOG is preferred in health communication research. Coleman-Liau uses character counts instead of syllables, making it more consistent. Use multiple scores and average them for best results.

Readability formulas rely on statistical averages (words per sentence, syllables per word). With fewer words, a single very long sentence or unusual word can wildly skew the results. Most readability research recommends at least 100–300 words for reliable scores.