Free listening tool
Enter your membership price, the credits it includes, and how many audiobooks you actually finish. See your real cost per audiobook next to buying them individually.
Works with any credit-based membership, including Audible and Chirp. This calculator does not connect to your account or check live pricing — enter your own numbers.
The simple math
A membership only pays off compared with its included credits. Anything you listen to beyond those credits gets priced at your individual rate, and anything you skip does not count as a saving here.
If you regularly use fewer credits than you're charged for, buying individually — or borrowing from a library app — usually wins on a per-book basis.
| Input | Effect |
|---|---|
| More credits used | Lowers cost per book |
| Fewer books finished | Raises cost per book |
| Higher individual price | Favors the membership |
| Extra books beyond credits | Priced at individual rate |
Beyond the spreadsheet
Booktrace doesn't track what you spend, but it does keep the book itself — narrator, chapters, sessions, and progress — together, no matter which app or credit paid for it.
Common questions
Compare the total monthly cost — including anything bought beyond your credits — against buying every audiobook individually.
Enter only the audiobooks you expect to finish. Unused credits don't count as savings until you actually redeem them.
Yes. Enter any membership price and credit count — it doesn't need to know which service you use.
Add them to "audiobooks you'll use." They're priced at your individual rate automatically.
