How to Check Text Readability Score Online
Readability scores measure how easy or difficult your text is to read and understand. Whether you're writing blog posts, creating educational content, drafting professional documents, or optimizing content for specific audiences, knowing your readability grade level helps ensure your message reaches readers effectively. This guide shows you how to check text readability scores using fixie.tools — a free analyzer that calculates Flesch-Kincaid Reading Ease, grade level, SMOG Index, and more, no signup required.
Step 1: Open the Readability Analyzer
Navigate to fixie.tools/readability in your web browser. The tool works on all devices without requiring any account creation. All analysis happens instantly in your browser with no text being sent to servers.
Step 2: Paste Your Text
Click in the text area and paste the content you want to analyze. The tool accepts text of any length — from short paragraphs to entire articles or documents. Paste from Word, Google Docs, web pages, or any text editor. The analyzer automatically strips formatting and focuses on the text content. For most accurate results, paste complete sentences and paragraphs rather than fragments.
Step 3: View Readability Scores
Once your text is entered, the tool instantly calculates multiple readability metrics: Flesch-Kincaid Reading Ease (0-100 scale, higher is easier to read), Flesch-Kincaid Grade Level (U.S. school grade required to understand the text), SMOG Index (years of education needed), Gunning Fog Index (grade level based on complex words and sentence length), and Coleman-Liau Index (grade level based on characters per word). Each score provides a different perspective on readability.
Step 4: See Grade Level and Target Audience
The tool displays an overall grade level recommendation (e.g., 8th grade, 12th grade, college level) and explains what audience can comfortably read your text. For web content, aim for 8th-10th grade level for general audiences. For academic or professional content, 12th grade to college level is appropriate. For children's content, target lower grade levels. The tool highlights whether your text is too complex or appropriately leveled for your intended readers.
Step 5: Get Improvement Suggestions
Below the scores, view specific suggestions to improve readability if needed. Common recommendations include breaking long sentences (aim for 15-20 words per sentence), replacing complex words with simpler alternatives, using more active voice instead of passive, and adding transition words for better flow. The tool highlights sentences that are particularly difficult and suggests ways to simplify them. Use these insights to revise your text for better clarity and accessibility.