Gmail inbox Readability Score

If you read a lot of emails, then you want to make sure you allocate your time wisely–we've developed a Gmail extension to help you with that–using Flesch reading ease test it measures the readability of a text–email. Inspired by Rudolf Flesch which constructed a formula in the early 1940s that measures the average sentence length in words and the average word length in syllables. It uses these variables to determine the readability score–it provides you with a score between 0 and 100. A score of 100 means your copy is very easy to read. And, a score of 0 means your text is very difficult to read. You can see the exact interpretation of all the scores on the scale in the table below. 90-100 very easy to read, easily understood by an average 11-year-old student 80-90 easy to read 70-80 fairly easy to read 60-70 easily understood by 13- to 15-year-old students 50-60 fairly difficult to read 30-50 difficult to read, best understood by college graduates 0-30 very difficult to read, best understood by university graduates In most cases, a score of 60 or higher means an email will be easy to read for most people with at least an eighth-grade education (that’s an average 13-year-old, in case you’re unfamiliar with U.S. grade levels). Determining the linguistic complexity of an email, allows you to prepare the time you need to read an email in full–it helps choose the right email for the right amount of available time you have–you can filter emails by readability score.