Premium Feature • Text Analysis • Grade Level Assessment

Readability Scores Analysis

Evaluate your text complexity with comprehensive readability formulas. Understand the education level needed for your audience and optimize your content with detailed analysis from multiple established formulas.

Readability Scores Feature Interface

How Readability Analysis Works

Readability scores help you assess how easy your text is to read and understand. Each formula measures readability differently, providing unique insights into your writing's complexity and accessibility.

Multiple Readability Formulas

Access 8+ established readability formulas including Flesch-Kincaid, ARI, Coleman-Liau, Dale-Chall, and more. Each formula provides unique insights into text complexity.

Grade Level Assessment

Get precise grade level assessments from kindergarten to college level. Understand the education level required for your target audience to comprehend your content.

Visual Analysis Tools

Visualize readability with color-coded scales, detailed formula breakdowns, and interactive charts. See exactly how each metric evaluates your text complexity.

Comprehensive Readability Formulas

Each formula measures readability differently, giving you multiple perspectives on your text's complexity and accessibility.

Flesch Reading Ease

Rates text on a 100-point scale. Higher scores indicate material that is easier to read, with 90-100 being very easy and 0-30 being very difficult.

Flesch-Kincaid Grade Level

Translates the Reading Ease score to a US grade level, indicating the education level needed to comprehend the text.

Automated Readability Index (ARI)

Measures text complexity based on characters per word and words per sentence, providing a grade level estimate.

Coleman-Liau Index

Uses characters instead of syllables for grade prediction, making it more reliable for computer analysis.

Dale-Chall Readability

Based on sentence length and percentage of difficult words using a list of 3,000 words familiar to 4th-grade students.

Gunning Fog Index

Estimates the years of formal education needed to understand text on first reading, focusing on complex words.

SMOG Index

Calculates the grade level required to comprehend text based on the number of polysyllabic words.

Spache Readability Formula

Designed specifically for primary grade level materials, using a list of words familiar to elementary students.

Learn more about readability formulas in our readability guide

Advanced Analysis Features

Get deeper insights into your text's readability with comprehensive analysis tools and customization options.

Target Readability Levels

Set your target audience level and get color-coded feedback on how well your text matches. Choose from predefined targets like "General Public" (8th grade) or "Technical Content" for specialized documents.

Easy (4th-6th Grade) - Critical information
Standard (7th-8th Grade) - General content
Advanced (9th-12th Grade) - Complex content

Sample Summary View

Flesch Reading Ease Grade 7 ✓
Dale-Chall Grade 10 ⚠

Detailed Formula Analysis

Dive deep into each readability formula with visual breakdowns, actual calculations using your text data, and comprehensive grade level tables. Understand exactly how each metric evaluates your content.

Each formula page includes:

  • Visual formula breakdown with your text values
  • Interactive readability scale with color coding
  • Complete grade level reference tables

Formula Visualization Example

ARI = 4.71 × (characters ÷ words) + 0.5 × (words ÷ sentences) - 21.43

Grade Level: 8.2

Difficult Words Highlighting

Premium Feature

See exactly which words are considered "difficult" by the Dale-Chall formula. Words not found in the 3,000 familiar words list are highlighted in your text, helping you identify terms that might challenge your readers.

Example with difficult words highlighted:

The text uses advanced techniques to make writing more effective and easier to read.

Why Use Readability Analysis?

Ensure your content reaches and engages your intended audience with data-driven insights.

Content Accessibility

Ensure your content is accessible to your target audience by matching appropriate reading levels.

Educational Content

Create educational materials that match specific grade levels and learning objectives.

Professional Writing

Optimize business communications, reports, and documentation for clarity and professional impact.

Technical Documentation

Balance technical accuracy with readability for user manuals, API docs, and help content.

Premium Feature with Free Access

Readability Scores is a premium feature that's unlocked for all users twice per week. Get full access to all readability formulas, detailed analysis, and word highlighting without a subscription.

Free Access

Available twice weekly for all users. No subscription required to try the complete feature.

Premium Access

Unlimited access to all readability formulas and advanced analysis features.

Ready to Analyze Your Text?

Start using Gorby's comprehensive readability analysis today. Understand your text's complexity and optimize it for your target audience with detailed insights from multiple proven formulas.

© 2025 Gorby. All rights reserved.