Data story · length by decade
Audiobooks are getting longer: 2020s titles run 66% longer than 1950s ones
Group our dataset by each book's first publication decade and the trend is unambiguous: average listening time climbs from 7.4 hours (1950s) to 12.2 (2020s).
Audiobooks of titles first published in the 2020s run 66% longer than 1950s ones; average listening time climbs from 7.4 hours to 12.2. We grouped every book in the dataset by its first publication decade (659 books published before 1950 or missing a year are excluded); the rise comes almost every decade.
The decade curve
- 7.41950sn=189
- 7.71960sn=234
- 8.21970sn=482
- 8.31980sn=1070
- 9.91990sn=1525
- 9.82000sn=2294
- 112010sn=1765
- 12.22020sn=342
Where the curve bends
The steepest jump is 1980s → 1990s: +20% in one decade. And since most of these listening times still derive from page counts (a store-listed duration replaces the estimate where we hold one), this is at bottom a fact about the books themselves: popular titles simply got longer, and their audiobooks inherit every extra page.
One caveat worth naming: this dataset is today's popular audiobooks, not a random sample of each decade's publishing; older titles survive on this list only if people still read them. 4,401 of the 8,560 books (51%) were first published after 2000, so recent decades are measured much more densely than the 1950s.
Modern books are long. Listen anyway
The average 2020s title runs 12.2 hours, and length costs you nothing extra.
New members at audiobooks.com get three free audiobooks with the trial.
Start listening freeMethodology.Books grouped by first_publish_year decade; decades with fewer than 30 books excluded. Dataset: 8,560 audiobooks measured by The Books Insider as of 2026-09-30. Listening hours are the store-listed duration where we hold an author-verified edition (1,642 books), otherwise estimated from page counts (pages × 275 words ÷ 9,300 words/hour, ±10%, labeled as estimates); full method on the About page. Explore the full dataset on ouraudiobook statistics page.About & methodology →