EASY
Readable Structure
Lower LIX values usually indicate shorter sentences and more accessible wording.
Free to use • No registration required
LIX Readability Score Tool
Calculate the LIX readability score to estimate text difficulty from sentence and word length.
Understanding Your LIX Readability Results
LIX estimates reading difficulty using sentence length and long-word percentage. It helps identify content that may feel too dense.
REVIEW
Sentence and Word Density
Long sentences and frequent long words can push the score up and slow comprehension.
TOO COMPLEX
Clarity Risk
A high LIX score suggests the content may need simplification before publishing.
About This Tool
The LIX Readability Score Tool estimates text difficulty using sentence length and long-word frequency. It is a straightforward way to compare how dense different pieces of content feel.
Use it for articles, help docs, landing pages, reports, and education content where readability affects comprehension.
Why It Matters
1
Measure text density
Use sentence and word length signals to spot heavy writing.
2
Compare drafts quickly
See whether a revision became easier or harder to read.
3
Improve scanning
Shorter sentences and cleaner structure support faster reading.
4
Support content governance
Use LIX as one repeatable readability metric across pages.
How To Improve
1
Paste the text
Analyze the section or full page you want to publish.
2
Review long words and sentences
Identify where the copy becomes dense.
3
Edit for directness
Remove filler, split complex sentences, and simplify wording.
4
Re-run the score
Check whether readability improved while the message stayed clear.
Frequently Asked Questions
LIX is a readability score based on sentence length and the percentage of long words.
It depends on audience and language. Use it mainly to compare drafts and reduce unnecessary complexity.
Yes. It helps ensure content is easier for readers to understand and scan.
It gives another view of complexity, especially around sentence length and long words.
Related tools
RIX Text Complexity
Calculate the RIX score to estimate text complexity from long words and sentence count.
Try tool
Dale-Chall Readability
Estimate readability using familiar word patterns and sentence length.
Coleman-Liau Index
Calculate the Coleman-Liau Index to estimate text grade level from letters and sentences.
Automated Readability Index
Calculate the Automated Readability Index for quick grade-level readability review.
PRO FEATURE
Unlock Full Analysis
Deeper infrastructure reporting and exports.