# Reading Level Calculator > Check how hard your text is to read. Six readability formulas (Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog, SMOG, Coleman-Liau, Automated Readability Index) in one tool, all in your browser, no upload. URL: https://uttir.com/reading-level Categories: text-tools, calculators Privacy: Your text is analyzed in your browser. Nothing is uploaded to a server. ## About Paste your text and get six standard readability scores at once: how easy it is to read, what US grade level it targets, and how much education a reader needs to understand it on a first pass. Useful for writers checking blog posts for a target audience, teachers building reading lists, marketers making sure landing-page copy does not scare off the average visitor, and anyone who edits prose for a living. ## How to use 1. **Paste your text** — A few sentences to several pages. The formulas need at least 3 sentences for accurate SMOG. 2. **Read the six scores** — Each formula answers a slightly different question. Look at them together. 3. **Read the interpretation** — The Flesch Reading Ease score comes with a one-line plain-English interpretation. ## Examples ### Aiming for general-audience writing For a blog, a landing page, or marketing copy, the target is Flesch Reading Ease 60+ (8th-9th grade). If your score is below 50, your text is college-level — most of your audience will bounce. Input: ``` The utilization of synergistic optimization paradigms facilitates the operationalization of comprehensive deliverables. ``` Output: ``` Flesch Reading Ease ~5, Flesch-Kincaid Grade ~20. Way above the average reader. Rewrite in plain English. ``` ### Checking academic writing For a journal article, a textbook, or technical documentation, Flesch-Kincaid Grade 12-16 is normal. Below 10 reads as too casual; above 18 reads as needlessly dense. Input: ``` The results demonstrate a statistically significant correlation (p < 0.05) between exposure and outcome. ``` Output: ``` Flesch-Kincaid Grade ~12. Appropriate for a journal or technical doc. ``` ## FAQ ### Which score should I trust? Flesch-Kincaid Grade Level is the most commonly cited because it is the US Department of Defense standard. Flesch Reading Ease is the most intuitive because the scale runs 0-100 (higher = easier). The other four formulas are all reasonable for the same purpose; use whichever your industry references. ### Is my text uploaded? No. The analysis runs entirely in your browser. The text never leaves the page. ### Why does it ask for at least 3 sentences? The SMOG formula is calibrated against a 30-sentence sample. With fewer than 3 sentences the estimate is unreliable; the tool shows 0 and you should rely on the other five formulas. ### How are syllables counted? A heuristic that counts vowel groups and accounts for silent trailing e. English syllable counting is famously imperfect (the word "queue" alone has at least three reasonable counts), but the formulas were calibrated against the same heuristic, so the scores are still comparable to the published reference values. ### Why do the formulas disagree sometimes? They use different primitives. Flesch and Gunning Fog use syllable counts. Coleman-Liau and the Automated Readability Index use character counts instead. For most English text, the six scores cluster within a grade level of each other; wide disagreement usually means a short or unusual sample. ## Related tools - [Word Counter](https://uttir.com/word-counter) — Count words, characters, sentences, and paragraphs in your text instantly. - [Character Counter](https://uttir.com/character-counter) — Count characters, words, lines, and UTF-8 bytes as you type. - [Character Frequency Counter](https://uttir.com/character-frequency) — Count how often each character appears in your text. Useful for cryptanalysis, language detection, and stats. - [Reading Time Calculator](https://uttir.com/reading-time) — Estimate how long it takes to read or speak a piece of text. Adjustable words-per-minute for fiction, non-fiction, or speech. - [Sentence & Paragraph Counter](https://uttir.com/sentence-counter) — Count sentences, paragraphs, words, characters, and reading time all at once. Find your longest word and average sentence length. - [Paragraph Counter](https://uttir.com/paragraph-counter) — Count paragraphs, words per paragraph, and find the longest/shortest paragraph in your text. Free, runs in your browser. - [Sentence Length Checker](https://uttir.com/sentence-length-checker) — Check the length of every sentence in your text. Find sentences that are too long and see the average, median, and length distribution. --- For the full HTML page with the live tool, visit https://uttir.com/reading-level. This file is the markdown rendering at https://uttir.com/reading-level.md. See https://uttir.com/llms.txt for a site-wide summary.