FK combines average sentence length (total words/total sentences), average syllables per word and some fixed coefficients to come up with an equivalent school g

FK combines average sentence length (total words/total sentences), average syllables per word and some fixed coefficients to come up with an equivalent school grade. Flesch Reading Ease score, which is what I actually meant, does the same but with different coefficients to come up with a more granular difficulty score, usually in the range of 30-100. They're both pretty arbitrary. The more I read up on this subject the more respect I have for the author's own attempts at an originality score. It's all subjective ultimately.