Readability Checker
Check text readability with Flesch Reading Ease and Flesch–Kincaid Grade Level scores.
About Readability Checker
Measure how easy your writing is to read using the two most widely used formulas: the Flesch Reading Ease score (0–100, higher is easier) and the Flesch–Kincaid Grade Level. The tool estimates syllables, sentences and words to compute both scores and explains what each result means, so you can adjust your copy for your audience. All analysis runs in your browser.
How to use Readability Checker
- 1
Paste the text you want to evaluate.
- 2
Read the Flesch Reading Ease and Grade Level scores.
- 3
Use the interpretation to simplify or refine your writing.
Frequently Asked Questions
What is a good Flesch Reading Ease score?
Scores of 60–70 are considered plain English suitable for most readers. Higher scores are easier; scores below 50 indicate more difficult, college-level text.
How are syllables counted?
Syllables are estimated with a common vowel-group heuristic, which is accurate for most English words but can occasionally miscount unusual spellings, so treat the scores as close estimates.
More Text Tools
Alphabetizer / Line Sorter
Sort lines alphabetically A–Z or Z–A with case, duplicate and whitespace options.
Case Converter
Convert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case and more.
Character Counter
Count characters, words, sentences, paragraphs and reading time as you type.