How is the Lexile score calculated?

Using a formula based on sentence length and word frequency — the same core factors the official Lexile Framework uses.

Is this an official Lexile score?

This is an estimate. For official scores, use Lexile.com's Analyzer.

What Lexile range is good for web content?

700L–1000L is comfortable for most general audiences.

Free Lexile Analyzer — Estimate Text Lexile Level Online

Estimate the Lexile reading level of any text with our free Lexile Level Calculator. Paste your content and get an approximate Lexile measure (e.g., 800L–1000L) along with the corresponding grade band from 2nd grade through college level. The tool analyzes sentence length and word frequency to produce a score aligned with the Lexile Framework. Perfect for educators selecting age-appropriate reading materials, authors calibrating their writing level, and parents evaluating books for their children.

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How to use the Lexile Level Calculator

Open the tool — Visit this page in any browser. No account, download, or installation required. Works on desktop, tablet, and mobile.
Enter your content — Estimate the Lexile reading level of any text with our free Lexile Level Calculator.
Get your result instantly — All processing happens in your browser. Copy, download, or share your result immediately. Your data never leaves your device.

Frequently Asked Questions

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