Gunning+Fox+Index

This test also measures the readability of a piece of writing.
 * Gunning Fox Index **

The Gunning fog index can be calculated with the following steps:

→ Take a full passage that is around 100 words (do not omit any sentences). Find the average sentence length (divide the number of words by the number of sentences). → Count words with three or more → Add the average sentence length and the percentage of complex words (ex., +13.37%, not simply + 0.1337) → Multiply the result by 0.4

The complete formula is as follows: 0.4 [(words/sentences) + 100(complex words/words)]