BALANCED
Readable Density
A moderate score suggests the text has a manageable balance of word length and sentence length.
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Coleman-Liau Index Tool
Calculate the Coleman-Liau Index to estimate text grade level from letters and sentences.
Understanding Your Coleman-Liau Index Results
The Coleman-Liau Index estimates readability using characters, words, and sentences. It is useful for spotting dense written content quickly.
REVIEW
Letter and Sentence Load
Long words and long sentences can raise the score and make scanning harder.
FRICTION
Skimmability Risk
A high index score may reduce comprehension, especially on landing pages, help docs, and emails.
About This Tool
The Coleman-Liau Index Tool estimates readability based on letters per word and sentences per text sample. It is useful for digital text because it relies on character counts rather than syllable detection.
Use it to review web pages, blog posts, documentation, and marketing copy for audience-appropriate complexity.
Why It Matters
1
Review digital text quickly
Character-based scoring works well for automated text checks.
2
Catch hard-to-read copy
High scores can signal long words, long sentences, or dense structure.
3
Support editorial targets
Use the result as one benchmark in your content QA process.
4
Improve clarity at scale
Apply a repeatable readability check across many pages.
How To Improve
1
Analyze the target text
Paste the full draft or page section.
2
Compare with your audience
Expert content can be higher; broad public pages should be easier.
3
Reduce sentence load
Break dense ideas into shorter sentences.
4
Improve paragraph rhythm
Use headings, bullets, and spacing to make scanning easier.
Frequently Asked Questions
It is a readability formula that estimates grade level using letters per word and sentence length.
It measures different signals, so it can reveal issues another formula misses.
No. The right score depends on the audience and purpose of the content.
Yes. It helps identify when interface or marketing copy may be too complex.
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