Collected extent · 3 works
Darwin, Charles
3 works measured — 540,768 words in total, roughly 36h 03m of reading at an average pace.
Works measured3public domain
Total words540,768combined
Reading time36hall works
Average grade11.2Flesch–Kincaid
SOURCE·Project Gutenberg full texts·3 editions counted, one rule·REVIEWED JUL 2026
The works, longest first
| Work | Words | Reading time | Grade | Unique words |
|---|---|---|---|---|
| More Letters of Charles Darwin — Volume 1 | 192,967 | 12h 52m | 8.8 | 12,411 |
| Life and Letters of Charles Darwin — Volume 1 | 192,896 | 12h 52m | 10.4 | 12,375 |
| On the Origin of Species By Means of Natural Selection | 154,905 | 10h 20m | 14.4 | 7,231 |
Only works with a Project Gutenberg plain-text edition appear here, so a bibliography will be longer than this table. What is counted, and what is struck first.
