What does each book really cost you on a subscription?
Divide what you pay in a month by the books you actually finish. At one book a month, most subscriptions cost about the same as buying the book; at four or more, buffets like Kindle+ fall to around $3 a book. Credit plans stay near the price of a book because every extra title is a purchase. Enter your own numbers below; the library row is always $0.
How does the calculator work?
You enter two numbers: how many books you finish in a typical month, and what a book you want would cost to buy. The calculator then works out a monthly bill and a cost per finished book for each route, using the US prices in the table below it.
Buffets (Kindle+, Everand) cost the same however much you read, so the per-book cost falls as you read more, as long as the books you want are in the catalog. Credit plans include one book; each further book is bought at the price you entered. Buying outright is simply books times price.
What does the calculator leave out?
Whether the books you want are in each catalog, which matters more than any of this math. Run the 10-book test in our Kindle+ guide before trusting a buffet result. It also ignores sales, member discounts and annual plans, which change often; our price tracker lists the annual options. And it does not value ownership: a credit book you keep and a buffet book you lose cost the same here and are not the same thing.
What do typical results look like?
With the default book price of $14.99: at one book a month, Kindle+ and Everand cost $11.99 a book, Audible Standard $8.99 and Premium $14.95, and buying costs $14.99. At four books, Kindle+ and Everand drop to $3.00 a book, while Audible Premium rises toward the book price ($14.98 a book here) because three of the four are purchases. At eight books, the buffets reach about $1.50.
So the shape is always the same: buffets reward volume, credit plans reward patience and ownership, and the library beats everything if it has what you want. The calculator only puts your numbers on that shape.
How should you choose the book price to enter?
Use what you actually pay, not list price. If you read genre ebooks that often sell for a few dollars, enter that, and you will see buffets look less attractive. If you listen to new audiobooks that list at $20 to $35, enter a number in that range, and you will see credits look better. If you mix, enter an average of your last five purchases.
Which prices does it use?
Kindle+ $11.99 a month (Amazon, updated 22 October 2026). Audible Standard $8.99 and Premium $14.95 (Audible plan page, checked 2026-10-27). Everand $11.99 (our price tracker, desk-checked 2026-08-01). Library $0. Change the book price to match what you read: genre ebooks often cost a few dollars, new audiobooks can cost $20 to $35.
| Route | Monthly bill | Cost per finished book | Note |
|---|---|---|---|
| Library (Libby, Hoopla) | $0.00 | $0.00 | Holds queues; nothing kept |
| Buy each book | $29.98 | $14.99 | You keep what you buy |
| Kindle+ (formerly Kindle Unlimited) | $11.99 | $6.00 | Catalog fit matters; nothing kept |
| Everand | $11.99 | $6.00 | Availability limits for heavy users; nothing kept |
| Audible Standard | $23.98 | $11.99 | 1 pick a month, playable only while subscribed |
| Audible Premium | $29.94 | $14.97 | 1 credit a month, yours to keep |
Questions readers actually ask
- Is a book subscription cheaper than buying?
- Only if you finish enough books from its catalog. At one book a month, a $12 buffet costs about the same as buying one ebook.
- What is the cheapest way to read a lot?
- A library card at $0. After that, a buffet subscription whose catalog fits what you read.
- Does the calculator include taxes?
- No. Prices are US list prices before tax.