Readability Score – Complete Guide & Free Online Tool
A readability checker estimates how easy your text is to read using the Flesch Reading Ease score, which considers sentence length and syllables. Free online tool included.
Published 2026-09-13
What is Readability Score?
A readability checker estimates how easy your text is to read using the Flesch Reading Ease score, which considers sentence length and syllables.
What is the Flesch Reading Ease?
It scores text from 0 to 100; higher scores are easier to read. Scores of 60–70 are typical for plain English. The formula uses average sentence length and syllables per word.
Why readability matters
Readable content keeps audiences engaged and is often favored by search engines for general queries. Short sentences and common words improve the score.
Key Features
• Flesch score • Readability grade • Word and sentence counts
Examples
• Simple text scores high; dense technical writing scores low.
Common Use Cases
• Editing • Content writing • Accessibility
Tips & Best Practices
• Shorten long sentences and replace long words to raise the score.
Limitations
• The score is a heuristic; it does not measure meaning or quality.
External Resources
Wikipedia: Flesch–Kincaid readability tests