Data story · length by decade
Audiobooks are getting longer: 2020s titles run 74% longer than 1950s ones
Group our dataset by each book's first publication decade and the trend is unambiguous: average listening time climbs from 7.6 hours (1950s) to 13.1 (2020s).
We grouped every book in the dataset by its first publication decade (236 books published before 1950 or missing a year are excluded). Average estimated listening time rises almost every decade — from 7.6 hours in the 1950s to 13.1 in the 2020s.
The decade curve
- 7.61950sn=53
- 8.11960sn=47
- 8.91970sn=123
- 8.51980sn=321
- 11.71990sn=329
- 11.72000sn=423
- 13.12010sn=378
- 13.12020sn=90
Where the curve bends
The steepest jump is 1980s → 1990s: +37% in one decade. And since our listening hours are estimated from page counts, 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. 891 of the 2,000 books (45%) 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 13.1 hours, and the audiobooks.com free trial includes one full audiobook of any length. Cancel anytime; the trial stays free.
Start the free trialMethodology.Books grouped by first_publish_year decade; decades with fewer than 30 books excluded. Dataset: 2,000 audiobooks measured by The Books Insider as of 2026-07-06. Listening hours are estimated from page counts (pages × 275 words ÷ 9,300 words/hour, ±10%) — full method on the About page.