Free Readability Checker (Flesch-Kincaid & Grade Level)

Paste your text, get instant Flesch Reading Ease & grade-level scores plus fix suggestions. Free readability test for writers & marketers. No signup.

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About This Tool

Use our free readability checker to analyze your text against the Flesch-Kincaid grade level and reading ease formulas. Standard readability scores help writers and SEO editors optimize copy for their target audience, ensuring web content is clear and engaging.

How to Use This Tool

1
Paste the text you want to analyze into the input box.
2
Review the Flesch Reading Ease score and the corresponding grade level rating.
3
Check details like average word length, sentence length, and complex word percentage.
4
Verify readability category indicators ranging from "Very Easy" to "Very Difficult".
5
Refine your text to target lower grade levels and improve overall accessibility.

Why Choose Readability Calculator?

Standard Formula

Uses standard, scientifically-backed formulas to analyze reading ease.

Grade Level Mapping

Easily maps numerical scores to equivalent education levels for target audience matching.

Detailed Statistics

Tracks sentence counts, word counts, character counts, and syllable stats.

Privacy Protection

None of your proprietary copy, articles, or essays are uploaded or saved.

Common Use Cases

SEO Content Editing

Simplify blog posts and guides to improve reading time and lower bounce rates.

Copywriting Optimization

Verify that promotional copy and marketing emails are written at an accessible 7th-grade level.

Educational Prep

Format texts and study sheets to match the target reading age of students.

What Is a Good Flesch Reading Ease Score?

A Flesch Reading Ease score of 60 to 70 is considered standard and is readable by a 13-to-15-year-old student (8th to 9th grade). Higher scores mean the text is easier to read, while lower scores indicate more difficult, academic or technical text. Use our readability calculator to check your score instantly.

Frequently Asked Questions

What is a good Flesch reading ease score?

A Flesch reading ease score between 60 and 70 is considered standard, representing a 7th to 8th grade reading level, which is accessible to most adults. Higher scores indicate easier readability.

What grade level should my writing be?

For general web copy, marketing content, and blogs, aim for a 7th to 8th grade reading level. Technical, medical, or academic writing can target high school or university levels (grades 10 to 12+).

How is Flesch-Kincaid calculated?

The Flesch-Kincaid formula measures average sentence length (words per sentence) and average word length (syllables per word) to determine overall text complexity and grade level.