Readability Score Checker

A readability checker scores how easy your text is to read, using the two standard formulas: Flesch Reading Ease (0–100, higher = easier) and the Flesch-Kincaid Grade Level (the US school grade needed to follow the text). Both are computed from just two measurable things — average sentence length and average syllables per word.

The scales have well-known landmarks: 90+ reads like a children's book, 60–70 is plain English (most successful web writing), 30–50 is college-level, and below 30 is academic or legal density. Popular novels sit around 70–80; the average newspaper around 50–60.

Paste or write text and the scores update live: Flesch Reading Ease, grade level, and a plain-language rating from "Very easy" to "Very difficult" — plus the word, sentence and syllable stats driving them.

Content writers aim for 60+ because plain writing measurably outperforms dense writing on engagement; marketers score landing pages against their audience; teachers match materials to grade levels; and technical and health writers meet the readability standards many organizations mandate (US plain-language guidelines target roughly 8th-grade level for public documents).

Improving a score is mechanical: split long sentences and swap multi-syllable words for short ones — the formulas reward exactly those two moves. Scoring runs live in your browser; your draft is never uploaded.