Paste at least twenty words and I will measure. Below that the numbers are just noise.
What the number means
LIX counts two things: how many words your sentences hold, and what share of the words run longer than six characters. The sum is one number. Under 40 is easy, past 50 it starts to hurt.
The measure is Swedish, which is why it is used here. English measures count syllables, which misreads languages where compound words are ordinary rather than a sign of difficult text.
The average often hides the problem. A text can average well and still contain three sentences nobody can follow. That is why the longest ones are listed beside it, since usually only those need rewriting.
Common questions
- What is LIX?
- A Swedish readability index from 1968. LIX is the number of words per sentence plus the share of words longer than six letters. It suits Swedish better than English measures such as Flesch, because long compound words are normal in Swedish.
- What is a good LIX score?
- Under 30 is very easy, 30 to 40 is like a daily newspaper and where most web pages should sit. 40 to 50 is trade text, over 50 is official prose that few finish.
- How is LIX calculated?
- Divide the number of words by the number of sentences, and add the share of long words as a percentage. The tool counts it in your browser; the text never leaves your computer.
This tool reads one text at a time. Tedrix reads your whole site every week, finds the pages getting fewer visitors, and rewrites them.