Flesch-Kincaid Grade Level
The only drawback with Flesch’s Ease method was that the result needed to be translated. For a while, this was done using a separate table to turn the 1 to 100 score into a grade like those used in US public schools.
In the 1970s, the US Navy built on Flesch’s system to create the Flesch-Kincaid Grade Level.
This formula gives a result of between 1 and 18. With US school grades starting at age 5, writing with a score of 8 should be easy to read for a 13-year-old.
Well, that makes perfect sense, not.
At first glance, the formulas and the output may not seem to make sense. But, the building bricks that make up both Flesch scores are straightforward and based on two factors:
- Sentence length. As judged by the average number of words in a sentence
- Word length. As judged by the average number of syllables in a word
Our tool lets you set a target grade before you start, and analyses the sentiment behind your content. It also shows you the key words in your text (based on how often they are used), so you can follow your SEO strategy into the bargain!
There’s also Microsoft Word:
- Go to File > Options.
- Select Proofing.
- Under When correcting spelling and grammar in Word, make sure to select the Check grammar with spelling check box.
- Select Show readability statistics.
If you aren’t using Microsoft Office, then Grammarly and Hemingway are good places to start.
Is Flesch-Kincaid the only readability metric?
No, there are all sorts of different options out there once you start digging. You may come across Klose Tests, the SMOG Index, and many others.
We like Flesch-Kincaid because it is the best all-rounder. It can be usefully applied to text in any industry or format to set a decent benchmark.
What should I do with this knowledge?
Whatever content you are writing, readability needs to be one of the first things you think about. If your audience struggles to read your content, they won’t click your CTA’s, or even hang around on your site for very long.
So if you’re getting very high bounce rates on your web pages, low Click-Through Rates on your emails, or no engagement with your paid ads, start by taking a look at your readability score.