Readability Score Checker
Paste your content to estimate its Flesch Reading Ease score and approximate US grade level — a quick sanity check on how easy your writing is to follow.
How to Use This Tool
Paste your content
Drop in a full article, blog post, or any block of text you want to check.
Click "Check readability"
The tool estimates syllables, sentence length and word count instantly.
Read your score and grade level
Higher reading-ease scores mean simpler, more accessible writing.
Simplify if needed
Shorter sentences and simpler words both raise your reading-ease score.
About the Readability Score Checker
The Flesch Reading Ease score is one of the oldest and most widely used readability formulas, calculated from average sentence length and average syllables per word. It produces a score from 0 to 100, where higher scores mean the text is easier to read — a score of 60–70 is considered plain, accessible English, roughly the reading level of an average 13–15 year old.
For most web content — blog posts, product pages, how-to guides — a higher reading-ease score tends to correlate with better engagement, since most readers skim rather than carefully parse dense, academic-style sentences. That doesn't mean simple is always better; technical or academic content naturally scores lower and that's appropriate for its audience.
This tool also estimates a rough US grade level equivalent alongside the reading-ease score, giving you two complementary ways to gauge whether your writing matches your intended audience.
Frequently Asked Questions
What's a good Flesch Reading Ease score for a blog post?
Most general-audience blog content aims for somewhere between 60 and 80, which corresponds to fairly easy to plain English. If you're writing for a broad consumer audience rather than industry specialists, aiming toward the higher end of that range tends to improve engagement.
Does a higher readability score directly improve SEO rankings?
Not as a direct, isolated ranking factor, but easier-to-read content tends to keep visitors on the page longer and reduces bounce rate, both of which are behaviors search engines associate indirectly with content quality and relevance.
Why would I want a lower readability score on purpose?
Technical documentation, academic writing, legal content, or material for an expert audience naturally and appropriately scores lower, since it uses longer sentences and more complex, precise vocabulary that a general simplification would actually undermine.
How is the score actually calculated?
It's based on the average number of words per sentence and the average number of syllables per word across your whole text — shorter sentences and simpler, fewer-syllable words both push the score higher (easier to read).
Is this exactly the same score Microsoft Word or Yoast SEO shows?
It uses the same standard Flesch Reading Ease formula, but small differences in how sentences and syllables are detected can cause minor variations between tools. Treat the number as a strong estimate and directional guide rather than an exact, universally identical figure.
What's the easiest way to improve a low readability score?
Break up long sentences into shorter ones, swap complex multi-syllable words for simpler alternatives where the meaning stays the same, and cut unnecessary qualifying phrases. Re-run the check after editing to see the score move.