Readability

Readability: Quantitative Complexity by CCRS Level
This chart gives a range of reading scores (using several different measures, including Flesch-Kincaid and Lexile) to show what learners should be reading as they progress through each level of the CCRS. CCRS levels are correlated to grade level equivalents and ABE/ASE NRS levels.

Text Readability Consensus Calculator
This free text readability calculator uses seven popular readability formulas to calculate the average grade level, reading age, and text difficulty of a sample text. Simply cut and paste your text into the field, confirm that you are not a computer, and receive almost instant results.

ATOS Analyzer for Text Readability
Renaissance Learning’s ATOS text analyzer is free for online use. Copy and paste or upload a text passage to get ATOS level, including a grade level correlation in the context of college and career readiness standards, along with word count, average word and sentence length, and a measure of vocabulary level.

Academic Word Finder
This tool is designed to help teachers find high value, tier two vocabulary in any text. After creating a free account, simply copy and paste a passage into the word finder to highlight academic vocabulary below, at, and above your learners’ reading levels.

Fry Word List
The Fry Word List gives 1,000 of the most common words in the English language. These printable worksheets are free to duplicate for educational purposes.