LINGOAUDIOBOOK
How reading levels work
Levels are estimates for original works, not graded adaptations. Only English texts with a valid measurement use our Flesch heuristic.
| Flesch Reading Ease · English | CEFR / MCER · Estimated |
|---|---|
| ≥ 75 | A2 |
| 60–74.99 | B1 |
| 40–59.99 | B2 |
| 20–39.99 | C1 |
| < 20 | C2 |
heuristic_flesch_v1
Source availability and rights can change. Review the source license and the law in your country before downloading or sharing a work. We do not automatically host or redistribute Gutenberg ebook files. Reading levels are approximate guidance and are not an official CEFR certification.