Readability checker for German texts

Improve readability in writing

First analyze your source text and save the key figures with “Remember starting status”. Then revise individual sentences. The comparison shows how sentence length, Flesch value and LIX change. Keep an eye on content, target group and necessary technical terms.

How is the German Flesch Index calculated?

The tool uses the German adaptation according to Amstad: 180 − Wörter je Satz − 58,5 × Silben je Wort. Higher values indicate an easier-to-read language interface. The frequently used scale ranges from 0 to 100; computationally, values outside this range are possible. They are not cut off here.

The number of syllables is estimated from vowels and frequent German double sounds. This is not dictionary analysis. Especially names, foreign words and unusual spellings may differ. The boundaries of sentences are determined by means of punctuation marks and known abbreviations. Under 30 words, the classification is particularly uncertain.

What does the LIX show?

The LIX adds the average sentence length and the percentage of words with more than six letters. Lower values speak for a simpler linguistic interface. The two key figures have different scales and are not mixed into a supposed overall score.

The University of Hohenheim describes readability formulas and supplementary text features. This tool does not calculate a Hohenheimer comprehensibility index. Content correctness, logical structure and understanding of your target group still require editorial review.

Frequent questions