Free Readability Checker
Rewriting a hard paragraph, live
The quickest way to understand a readability score is to watch it move. Here is a paragraph that is correct but heavy: In order to facilitate the implementation of the aforementioned initiative, it is necessary that all stakeholders endeavour to ascertain the requirements of the organisation in a timely manner. One sentence, 28 words, and a lot of long words. Paste it in and the tool reports a difficult score and a high grade level, and lists the sentence among those over 25 words.
Now rewrite it: To get this project going, we need to know what the team needs. Please tell us soon. Two sentences of 12 and 4 words, made of short everyday words. The score jumps into the easy range, the grade level falls to the early school years, and the long sentence warning disappears. The meaning that matters is intact, and the reader needs a third of the effort.
What the main score is actually measuring
The Flesch Reading Ease formula uses only two ingredients: how long your sentences are on average, and how many syllables your words have on average. In its standard form it is 206.835 minus 1.015 times the average sentence length, minus 84.6 times the average syllables per word. Shorter sentences and shorter words raise the score. The grade level, often called Flesch-Kincaid, combines the same two ingredients differently to estimate the school year a reader would need.
That simplicity is both the charm and the limit. The formula cannot tell whether a short word is familiar or whether a sentence makes sense. It is a very good detector of dense writing and a poor judge of clarity on its own.
Choosing a target for your readers
| Content | Reasonable target |
|---|---|
| Public website, blog, shop | Reading ease 60 or higher |
| Instructions and help pages | 70 or higher |
| Business and professional writing | 50 to 60 is acceptable |
| Technical documentation, legal text | Lower scores are normal, so focus on clear structure |
An important point: aiming for easy writing is not talking down to people. Experts read faster, and make fewer mistakes, when text is clear, too.
Five edits that raise the score honestly
- Split long sentences. Look at the list of sentences over 25 words and cut each at the natural join, often a conjunction or a semicolon.
- Swap formal words for plain ones. Use, not utilise. Start, not commence. Help, not facilitate.
- Prefer active sentences. The team approved the plan reads faster than the plan was approved by the team.
- Cut empty openers. Phrases such as it is important to note that add length and no information.
- Break up paragraphs. Shorter blocks look easier and are easier.
Where scores mislead
Some good writing scores badly. A paragraph full of necessary technical terms, such as photosynthesis or authentication, will score lower however clearly it is explained. A list of short fragments can score very high and still be confusing. And the formulas assume English: results for other languages, including Bengali, are not meaningful. Treat the numbers as a prompt for you to look again, and trust your own ear for the final call.
A routine for editing a long article
Do not paste a whole 3,000 word article and chase one number. Paste it a section at a time, because scores for the whole text hide the hard patches. Fix the worst section first, then the next. When you finish, read the piece aloud once. Anything that makes you stumble is a candidate for another edit, whatever the score says.
Reading level for different readers
Consider who will read the text. A page for parents choosing a school, an article about tax for small business owners and a guide for software developers all need different levels. Average adult readers manage well with text around the level of a newspaper, which is why plain writing is a safe default for the public. For specialist audiences, accuracy and structure come first, and the score is only a hint that a paragraph may be heavier than it needs to be.
After readability
Once the writing flows, check the length with the word counter, look for overused phrases with the keyword density checker and fix spelling and grammar with the AI grammar checker. Your text stays in your browser throughout.
FAQ
For general web content, a Flesch Reading Ease score of 60 or higher is a good target.
It estimates the US school grade needed to understand the text. Grade 8 means a typical 13 to 14 year old can follow it.
Not as a direct ranking factor, but clear writing keeps readers engaged and helps them find answers, which search engines aim to reward.
The formulas are built for English, so results for other languages are not reliable.
No. The analysis runs in your browser.