LIX Readability Test

The LIX readability test measures the reading-level difficulty of a text.

Computing the LIX value involves summing two numbers:

• Average sentence length.
• Percentage of words with more than 6 letters.

The formula is:

LIX = (A/B) + (C*100)/A

• A = the number of words.
• B = number of periods (defined by period, colon or capital first letter).
• C = the number of long words (more than 6 letters).

A score of 20 means the text reads well. A score of 60 means the text reads difficultly.

Try to keep the score below 35.

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