Free readability tools to check for Reading Levels, Reading Assessment, and Reading Grade Levels.

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Free Spache Readability Formula with Word List - Original and Revised versions



Use our free Spache Readability Calculator to get the grade level of your text and determine if readers will be able to read and understand what you have written. Our Spache Formula uses its own word list to determine potential difficult words. The Spache Formula compares its Spache word list with your text and then calculates a U.S. grade level based on the number of difficult words with average sentence length.

The Spache Formula is designed to assess materials at the primary through third grade levels. (The formula can process materials beyond the fourth grade level, but the results become unreliable.)

(Note: Use our free New Dale-Chall Readability Calculator to gauge the readability of more advanced texts -i.e., fourth grade and above using a graded word list.)

Paste in a sample of text, between 150 and 600 words. To use the Spache Formula correctly, you should have already written your text for readers in kindergarten through third grade. Using its wordlist of familiar words (aimed at younger ages), the Spache Formula will let you know if your text is too difficult to read within this age group.

Paste a sample of plain text in the box. Your sample can be between 150-2000 words. We do not store or reuse your text in any way.

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Our free Spache Readability Tool will analyze your text and output the results to help you determine the grade level for your text.

Spache Readability outputs a U.S. school grade level; this indicates the average student in that grade level can read the text. For example, a score of 3 indicates that the text is understood by an average student in 3rd grade.


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