Text Readability Score Calculator
Text Readability Score Calculator
Paste a paragraph or block of text to calculate its Flesch Reading Ease score — a widely used readability metric based on average sentence length and syllables per word.
The score ranges from 0 to 100 and groups into familiar bands: 90-100 is "Very Easy" (comparable to a children's book), 60-69 is "Standard" (roughly the level of most everyday writing), and 0-29 is "Very Confusing" (dense academic or legal text). Editors, content marketers, and technical writers commonly use this score as a quick check that writing matches its intended audience — a product landing page and a legal disclaimer are expected to land in very different ranges. Syllable counting uses a standard vowel-group heuristic rather than a dictionary lookup, so results are a close approximation rather than a perfectly exact count.
- Formula: 206.835 − 1.015 × (words ÷ sentences) − 84.6 × (syllables ÷ words).
- Score ranges: 90-100 Very Easy, 80-89 Easy, 70-79 Fairly Easy, 60-69 Standard, 50-59 Fairly Difficult, 30-49 Difficult, 0-29 Very Confusing.
- Syllable counting: uses a standard vowel-group heuristic (not a dictionary lookup), so results are a close estimate rather than a phonetically perfect count.
What reading level should I aim for?
General audience web content is often written to land around "Standard" to "Fairly Easy" (roughly 60-79), though the right target depends on your specific audience.
Why does the score change if I add more sentences?
The score is sensitive to average sentence length and word complexity — shorter sentences and simpler (fewer-syllable) words raise the score, making text easier to read.
Text Readability Score Calculator
Paste a paragraph or block of text to calculate its Flesch Reading Ease score — a widely used readability metric based on average sentence length and syllables per word.
The score ranges from 0 to 100 and groups into familiar bands: 90-100 is "Very Easy" (comparable to a children's book), 60-69 is "Standard" (roughly the level of most everyday writing), and 0-29 is "Very Confusing" (dense academic or legal text). Editors, content marketers, and technical writers commonly use this score as a quick check that writing matches its intended audience — a product landing page and a legal disclaimer are expected to land in very different ranges. Syllable counting uses a standard vowel-group heuristic rather than a dictionary lookup, so results are a close approximation rather than a perfectly exact count.
- Formula: 206.835 − 1.015 × (words ÷ sentences) − 84.6 × (syllables ÷ words).
- Score ranges: 90-100 Very Easy, 80-89 Easy, 70-79 Fairly Easy, 60-69 Standard, 50-59 Fairly Difficult, 30-49 Difficult, 0-29 Very Confusing.
- Syllable counting: uses a standard vowel-group heuristic (not a dictionary lookup), so results are a close estimate rather than a phonetically perfect count.
What reading level should I aim for?
General audience web content is often written to land around "Standard" to "Fairly Easy" (roughly 60-79), though the right target depends on your specific audience.
Why does the score change if I add more sentences?
The score is sensitive to average sentence length and word complexity — shorter sentences and simpler (fewer-syllable) words raise the score, making text easier to read.