What is the Flesch Reading Ease Score?
The Flesch Reading Ease score is a readability formula that outputs a number from 0 to 100. Higher scores mean the text is easier to read. Developed by Rudolf Flesch in 1948, it uses two inputs: average sentence length and average number of syllables per word. Unlike grade-level formulas, the reading ease score gives you a single scale that’s easy to compare across documents—for example, a score of 65 is “standard” difficulty, while 80 is “easy.”
Writers and editors use the Flesch Reading Ease calculator when they want to know how accessible a piece of text is without translating that into a U.S. school grade. It’s common in content marketing, technical writing, and policy documents where a 0–100 scale is more intuitive than “8th grade level.” Many style guides and organizations set targets in reading ease (e.g. “aim for 60 or above”) rather than grade level.
What Is a Good Flesch Reading Ease Score?
For general audiences, a score of 60–70 is often considered good—readable but not oversimplified. Scores of 70–80 are easier and work well for consumer content, health information, or broad public outreach. Scores below 30 are typically very difficult (academic or legal style). Use the calculator above to see where your text lands and adjust sentence length and word choice to move up or down the scale as needed.
When to Use Flesch Reading Ease
Use a Flesch Reading Ease calculator when you need a quick, widely understood measure of how easy your text is to read. It’s ideal for comparing drafts, setting internal readability targets, or meeting guidelines that specify a reading-ease range. Because the same formula also underlies Flesch-Kincaid grade level, this tool gives you both the 0–100 score and the equivalent grade level on one page.
How the Formula Works
Rudolf Flesch developed the Reading Ease formula in 1948. It uses two inputs: the average number of syllables per word and the average number of words per sentence. Shorter sentences and shorter words (fewer syllables) produce higher scores. The formula is designed so that a score of 100 is very easy (short words, short sentences) and 0 is very difficult (long words, long sentences). No vocabulary list is used—only structural features of the text—so it is quick to compute and easy to interpret.
Who Uses Flesch Reading Ease?
Content marketers use it to keep blog posts and web copy accessible. Technical writers and policy teams use it to meet internal readability targets. Educators use it to match materials to student reading levels. Government and health communicators often aim for a Reading Ease score of 60 or above so that the broadest audience can understand. Because the 0–100 scale is intuitive and widely cited in style guides, it is one of the most common readability metrics in business and publishing.
Common Targets by Content Type
General web and marketing content often targets 60–70 (standard) or 70–80 (easy). Consumer health information and public outreach frequently aim for 70 or above. Legal, academic, or technical documents may sit in the 30–50 range and still be appropriate for specialized readers. If your guideline specifies a number (e.g. "Reading Ease 65 or higher"), use the calculator above to check your drafts and revise until you hit the target.
How to Improve Your Flesch Reading Ease Score
To raise your score, shorten sentences and prefer words with fewer syllables where possible. Break one long sentence into two or three shorter ones. Replace jargon or multisyllabic terms with simpler alternatives when the meaning allows. One idea per sentence helps. Because the formula is sensitive to both sentence length and word length, small edits can move the score several points. Run your text through the calculator after revisions to see the effect.
How to Use This Calculator
Paste your text into the box at the top of the page and click the analyze button. You will see your Flesch Reading Ease score (0–100) and the corresponding Flesch-Kincaid grade level. No account or signup is required. For a side-by-side view of all nine readability formulas, use our Combined Readability Checker.
