Readability Checker

Readability Checker Tool tests your work and gives a score using standard readability indicators like Flesch Kincaid Reading Ease, SMOG Index, and more. It helps you to successfully identify what grade kid could easily read and understand your article / text.

How to Use Readability Checker


Enter Input Text

Enter your original text by typing or pasting into the given area.


Click “Check Readability” Button

Once you've entered the text, click on "Check Readability" to start the process.


Get Output Text

Get the most accurate readability score in percentage form in the Output Section.

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Introduction to readability checker

A readability checker helps you find out how easy your text is to read. It shows the "reading age," which tells you how understandable your writing is for different age groups.

Our free Readability Scoring System analyzes English text and scores it based on how easy or hard it is to read, using popular formulas. You’ll find out the grade level and age of readers who are most likely to understand your text. The Readability Test Tool is quick and easy to use, and by far the best tool for checking how readable your writing is.

Features of our online readability analyzer

Our reading level checker provides the following features that help users to check the reading level of their documents.

1. Checks sentence and paragraph length

This reading level detector analyzes how long your sentences and paragraphs are. Shorter sentences and paragraphs are generally easier to read and understand.

2. Identify Grade Levels

It determines what reading level or grade level the text is suitable for, such as 3rd grade, 8th grade, etc. This helps ensure the content is appropriate for the intended audience.

3. Text Difficulty Level

It evaluates how difficult or complex the overall text is to comprehend based on factors like vocabulary, sentence structure, etc.

4. Vocabulary enhancement

It suggests simpler or more commonly used words to replace complex vocabulary to improve readability.

5. Structural Analysis

It examines the structure and flow of the text, identifying areas that may be confusing or need better organization.

6. Passive Voice Count

It counts how many sentences are written in the passive voice, which can make text harder to follow. Active voice is generally preferred.

7. Scores and Levels

It provides numerical scores and reading level ratings to quantify the overall readability of the text.

Where to find our readability score checker

Our readability score checker is easy to find online. Simply type its URL directly into your browser's search bar. You can also search for keywords like "readability checker" or "readability analyzer" on Google, Bing, or any other search engine. 

For direct access, type the URL address "” in your search bar. Bookmark this page for easy access in the future.

What readability tests does this tool score your text on?

Here are the different readability tests that this tool uses to score and evaluate texts

  • Flesch-Kincaid Reading Ease: Rates readability from 0 to 100 based on sentence and word length. Higher scores mean easier text.
  • Flesch-Kincaid Grade Level: Converts readability to a U.S. school grade level, indicating the grade needed to understand the text.
  • Gunning Fog Index: Estimates education years required to understand a passage by analyzing complex words and sentence length.
  • Coleman-Liau Index: Uses character count, focusing on average letters per 100 words and sentence length in characters. Shorter words and sentences lower the grade level score.
  • SMOG Index Score: Estimates education years needed based on the number of polysyllabic words in a sample of sentences.
  • Automated Readability Index: Uses characters per word and words per sentence to measure complexity. Longer words and sentences increase the score.
  • Fry Readability Graph: A visual tool that plots sentence and syllable counts to determine grade level readability.

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