Readability Score Calculator for English Text
Check whether article copy, docs, product pages, help content, and learning material are easy to scan. Calculate Flesch Reading Ease, Flesch-Kincaid grade, sentence length, word count, and reading time in the browser.
Try a common readability check
Readability estimate note
Readability formulas are approximate English-language signals. They do not guarantee clarity, accessibility, conversion, or search performance.
Flesch Reading Ease
55.8
Fairly difficult
Grade level
8.8
Words
40
Sentences
3
Syllables
65
Avg sentence
13.3 words
Reading time
1 min
A readability score calculator estimates how easy English text is to read.
Use it to find long sentences, dense wording, and grade-level issues before publishing.
English drafts
Paste article sections, docs, emails, product copy, or educational content.
Final paragraphs
Scores are more useful when the text includes full sentences and realistic paragraph structure.
Flesch Reading Ease rewards shorter sentences and simpler word shapes. Flesch-Kincaid grade estimates an approximate US school grade level.
Scores are guidance for editing; they cannot judge usefulness, accuracy, audience fit, or search quality by themselves.
Use it for documentation, blog drafts, help center articles, product onboarding, lesson plans, reports, and SEO content briefs.
Pair it with Word Counter and Reading Time Calculator for a fuller editorial check.
Flesch Reading Ease calculator
Estimate whether a paragraph feels easy, standard, or difficult to read.
Flesch-Kincaid grade level checker
Approximate a US school grade level for English prose before revising copy.
sentence length checker
Find dense drafts where long sentences may slow scanning and comprehension.
plain language checker
Use scores as one editing signal before a human reviews accuracy, tone, and audience fit.
Example
A documentation paragraph with many long sentences may show a lower reading ease score.
Assumption
Syllable counts are approximate and the formulas are intended for English prose.
Limitation
The tool does not understand technical correctness, context, intent, or whether the content is helpful.
Is a higher Flesch score better?
Usually, a higher score means easier reading, but the right target depends on audience and topic.
Does this replace editing?
No. It helps spot readability signals, but a human still needs to judge clarity and usefulness.
Does it work with short text?
It can, but scores are more stable with complete paragraphs and multiple sentences.
How is the text processed?
Calculations are handled in the browser for this tool based on the current public implementation. Avoid entering sensitive drafts unless you have reviewed the implementation.
Suggested workflow
Editorial QA path
Clean the draft, measure readability, then estimate reading time before publishing.