As you browse book web pages, Read Up automatically looks up reading level data and displays that data directly on the web page you're viewing
✅ ATOS® Book Levels, AR Points values, and wordcounts come directly from arbookfind
✅ Lexile® Levels come directly from lexile
✅ Fountas & Pinnell Guided Reading Levels (F&P GRL) are estimated from the ATOS values, using a conversion chart
✅ Equivalent grade levels are based on the ATOS values
We welcome bug reports and feature requests!