Readability Score Checker
If readers have to work to decode your writing, they stop reading. Paste your draft and get an instant Flesch Reading Ease score on a color-coded gauge, plus grade level and sentence stats — so you can simplify before you publish, with nothing uploaded anywhere.
Flesch Reading Ease
Paste or type some text below to see its readability scores.
How to Use Readability Score Checker
Paste your text
Paste or type your draft into the text box — an article, email, essay, or any prose you want to check.
Read the gauge
The Flesch Reading Ease gauge and rating update live, alongside grade level, average sentence length, and average word length cards.
Edit and re-check
Shorten long sentences and simplify wording, watching the scores improve in real time until you hit your target.
About Readability Score Checker
Why readability scores matter
Most adults read comfortably at an 8th-grade level, and attention online is brutally short — dense, academic prose loses readers within a paragraph. Readability scores put a number on that difficulty so you can fix it before publishing. Marketers use them because simpler landing pages convert better; journalists and bloggers because accessible writing gets shared more; technical writers and support teams because clear documentation cuts ticket volume. Plain-language laws in several countries even require government and insurance documents to meet minimum readability standards. A score turns "this feels wordy" into a concrete, improvable metric.
How Flesch scores are calculated
Flesch Reading Ease scores text from 0-100 using two factors: average sentence length in words, and average syllables per word. The formula is 206.835 − 1.015×(words/sentences) − 84.6×(syllables/words). Higher is easier: 90+ reads like a comic book, 60-70 like plain English, below 30 like an academic journal. Flesch-Kincaid Grade Level converts the same inputs into a US school grade — a score of 8 means an average 8th grader can follow it. Syllables are counted with a heuristic (vowel groups with silent-e handling), the same approach used by word processors, so scores match what tools like Word report closely.
How FluidConvert handles it
Paste or type your draft and every metric recalculates live: the Reading Ease gauge sweeps across five color bands from Very Difficult to Very Easy, and stat cards show grade level, average sentence length, and average word length. Long sentences drag scores down fastest, so watching the average-sentence-length card while you split sentences is the quickest way to improve. Analysis runs entirely in your browser — unpublished manuscripts, client copy, and internal docs are never uploaded, stored, or logged. No word limits, no signup, works on any device.
Common uses for Readability Score Checker
- Checking blog posts and landing pages hit a general-audience reading level before publishing
- Simplifying customer support docs and help articles to reduce confusion
- Meeting plain-language requirements for government, legal, or insurance documents
- Tuning email campaigns and ad copy for maximum comprehension
- Grading student writing or adjusting teaching materials to the right level
Frequently Asked Questions
What is a good Flesch Reading Ease score?
It depends on your audience, but 60-70 is the usual target for general web content — plain English an average adult reads without effort. Marketing copy often aims for 70+, while technical or academic material may sit at 30-50 legitimately. Scores of 90+ suit children's content and very simple instructions. If you're below 50 and writing for a general audience, shorter sentences and simpler words will lift the score quickly.
How accurate is the syllable counting?
Syllables are counted with a heuristic — vowel groups per word, with adjustments for silent e, -ed endings, and -le endings — because English spelling has no perfect syllable rule. The same approach powers readability checks in major word processors. Individual unusual words can be off by a syllable, but across a passage of normal length the errors average out and scores are reliable within a point or two.
How can I improve a low readability score?
Two levers move the score: sentence length and word length. Split any sentence over about 25 words, cut filler clauses, and swap long words for short ones — "use" instead of "utilize", "help" instead of "facilitate". Watch the average sentence length card as you edit; getting it under 20 words typically pulls general-audience content into the 60+ range without dumbing anything down.
Is my text uploaded when I check it?
No. All analysis runs in JavaScript inside your browser — the text never leaves your device and nothing is stored or logged. That makes it safe for unpublished book chapters, confidential client copy, legal drafts, and anything else you're not ready to share. It even works offline after the page loads.
What grade level should my writing target?
For general audiences — blogs, marketing, news — aim for grade 6-8, which matches how most adults prefer to read even when they're capable of more. Business and B2B content usually lands acceptably at grade 8-10. Reserve grade 12+ for genuinely specialist material where your readers expect technical density and precise terminology.