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

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Free Dale-Chall Readability Formula with Word List - Original and Revised versions

Use our free Dale-Chall 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 Dale-Chall Formula uses its own graded wordlist to determine potential difficult words. Dale-Chall Formula compares its wordlist with your text and then calculates a U.S. grade level based on the number of difficult words with average sentence length. This formula is designed to assess materials above fourth grade levels.

( NOTE: Use our free Spache Readability Tool to calculate texts below fourth grade.)

Paste in a sample of text, between 200 and 600 words. To use the Dale-Chall Formula correctly, you should already have written your text for readers above third grade. Using its wordlist of familiar words (aimed at young ages), the Dale-Chall Formula will let you know if your text is too difficult to read within this age group.

(NOTE: You may also use our free readability tests tool to score standard and advanced texts).

Our free Dale-Chall Readability Calculator uses an updated word list as used in the "New Dale-Chall" Readability Formula.

Paste sample of plain text here. Your sample should be between 200-600 words. We do not store or reuse your text in any way.

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

Dale-Chall Readability Index outputs a "Final Score" number, which corresponds to a number on the New Dale-Chall Adjusted Grade Level Chart. Our formula will automatically do this step for you.

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