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Readability Score Generator
A readability score generator runs your text through the Flesch Reading Ease formula — the standard used in journalism, government plain-language guidelines, and countless style guides — and returns a single 0-to-100 score where higher means easier. Alongside the score you get a grade-level band, from "Very easy (5th grade)" to "Very difficult (graduate level)", plus word, sentence, and words-per-sentence stats. The formula is classic Flesch: 206.835 minus 1.015 times average sentence length, minus 84.6 times syllables per word, rounded and clamped to the 0-100 range. Syllables are estimated with a vowel-group heuristic, so the score can drift a few points from tools that use dictionary lookups. For most web and business writing, aim for 60 or higher — roughly eighth-grade level. If you score low, the stats line points at the fix: shorten sentences first, then swap multi-syllable words for plain ones.
How to use
- Choose your options above
- Click Generate
- Copy your result
Detailed instructions
- Paste your text into the box.
- Click Generate to score its readability.
- Check the score and grade level.
- Shorten sentences and words to improve it.
Use Cases
- •Editing for clarity
- •Writing accessible content
- •Checking a document's reading level
- •Simplifying technical writing
- •Improving web copy
Tips
- →Aim for about 60 or higher.
- →Shorten sentences to raise the score.
- →Swap long words for plain ones.
- →Treat the score as a guide.
FAQ
what is the Flesch Reading Ease score
It is a standard readability formula that rates text from 0 to 100 based on average sentence length and syllables per word. Higher scores mean easier reading — around 60 to 70 is plain English, while below 30 is difficult, college-or-above level.
what score should i aim for
Most general writing targets about 60 or higher, roughly an eighth-grade reading level that most adults read comfortably. Technical or academic writing scores lower by nature, but for web copy and everyday content, aiming higher keeps it accessible.
why does my score differ from other readability tools
Syllables here are estimated with a vowel-group heuristic rather than a pronunciation dictionary, and the result is rounded and clamped to the 0-100 range, so scores can sit a few points from other checkers. Sentence detection also varies between tools — abbreviations and ellipses are counted differently everywhere. Comparing drafts of the same text within one tool stays reliable.
does the Flesch score work equally well for all types of writing
It is most reliable for standard prose — articles, reports, web copy. Technical writing full of necessary jargon scores poorly even when experts find it clear, because the formula penalizes long words regardless of whether they are unavoidable terms. Poetry also produces odd scores because short lines skew the sentence average. Treat it as a signal for general-audience prose, not a universal verdict.
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