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Free Powers-Sumner-Kearl Readability Formula Calculator

Use our free Powers-Sumner-Kearl 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. The Powers-Sumner-Kearl Readability Calculator is suited for primary age children (age 7-10), 1st grade to 4th grade, and does not score reliably above the age of 10 years (above 4th grade).

(Note: You may also use the Spache Readability Formula Calculator for texts written for students in 1st to 4th grade.)

(Note: Use our other free readability calculators to gauge the readability of more advanced texts -i.e., fourth grade and above.)

Paste in a sample of text, between 50 and 300 words. To use the Powers-Sumner-Kearl Readability Formula correctly, you should have already written your text for readers in 1st grade through fourth grade.

Paste sample of plain text here. Your sample must be 50+ words. A good sample size is 300 words.

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

Powers-Sumner-Kearl Readability Formula 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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