Free listening tool
Enter what you paid (or would pay) and the runtime for two audiobooks, credits, or plans. See the real cost per hour of listening for each.
Works for comparing two purchases, a credit against buying outright, or one service's pricing against another.
The simple math
A $30, 25-hour audiobook costs $1.20 an hour. A $10, 3-hour audiobook costs $3.33 an hour. Price alone would suggest the shorter book is the deal — cost per hour says the opposite.
This compares published runtime, not your speed-adjusted listening time. Pair it with the speed calculator if you want value per hour you'll actually spend listening.
| Audiobook | Cost per hour |
|---|---|
| $15 for 4 hours | $3.75/hr |
| $15 for 10 hours | $1.50/hr |
| $15 for 20 hours | $0.75/hr |
Beyond one comparison
Booktrace tracks listening time and sessions for every audiobook in your library, so you can see which books actually earned their place, not just which ones looked like a deal.
Common questions
Divide the price paid by the runtime in hours.
A longer, pricier audiobook can cost less per hour than a shorter, cheaper one, so cost per hour is the fairer comparison.
Yes. Enter what the credit effectively costs you — monthly price divided by credits — as the price for that option.
No, it uses published runtime. Use the speed calculator alongside it for listening-time-adjusted value.
