E-reader vs Paper Books Calculator
Compare the annual spend on paper books and an e-reader and find out how many books it takes to pay off the device.
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Disclaimer: this calculation is for informational purposes only. For important decisions, consult a qualified professional.
Is an e-reader really worth it?
An e-reader costs a few hundred or less, but each ebook is usually cheaper than its paper edition. The right question is not what the device costs, but how many books you need to read for the saving on each title to pay it back. This calculator compares the annual spend on paper books and with an e-reader, works out the break-even in books per year and the months needed to recover the device's price.
It works in any currency: enter the average prices you actually pay.
How the calculation works
- Spend on paper: books per year × average paper book price.
- Spend with the e-reader: books per year × average ebook price, plus the device price divided by its years of use, plus any subscription.
- Break-even: the annual share of device and subscription divided by the saving on each book.
- Months to pay off: the e-reader price divided by the net monthly saving.
If the ebook costs as much as or more than the paper book, the e-reader does not pay for itself on price, and the calculator says so.
How many books a year you need
With paper books at 15, ebooks at 8, a 130 e-reader used for 5 years and no subscription, break-even is at about 3.7 books a year:
| Books per year | Spend on paper | Spend with e-reader | Annual saving | Months to pay off | Reading |
|---|---|---|---|---|---|
| 2 | 30.00 | 42.00 | -12.00 | — | does not pay off |
| 4 | 60.00 | 58.00 | 2.00 | 56 | narrow break-even |
| 6 | 90.00 | 74.00 | 16.00 | 37 | pays off |
| 8 | 120.00 | 90.00 | 30.00 | 28 | pays off |
| 12 | 180.00 | 122.00 | 58.00 | 19 | clearly pays off |
| 24 | 360.00 | 218.00 | 142.00 | 9 | clearly pays off |
The saving grows with every extra book: the device cost is fixed, while the saving of 7 per book adds up. If you read one or two books a year you spend more with an e-reader; at one a month it pays off in just over a year and a half.
How much the ebook price matters
Same data, 12 books a year, changing the average ebook price:
| Ebook price | Spend with e-reader | Annual saving | Books to break even |
|---|---|---|---|
| 5.00 | 86.00 | 94.00 | 2.6 |
| 8.00 | 122.00 | 58.00 | 3.7 |
| 11.00 | 158.00 | 22.00 | 6.5 |
| 13.00 | 182.00 | -2.00 | 13.0 |
The saving depends mainly on the price gap between the two formats. When ebooks cost almost as much as paper books, break-even rises fast: deals, independent authors and free classics bring the average price down a lot.
Device price and lifespan
Still 12 books a year with ebooks at 8:
| E-reader price | Years of use | Annual device share | Annual saving | Books to break even |
|---|---|---|---|---|
| 100 | 5 | 20.00 | 64.00 | 2.9 |
| 130 | 5 | 26.00 | 58.00 | 3.7 |
| 130 | 3 | 43.33 | 40.67 | 6.2 |
| 250 | 5 | 50.00 | 34.00 | 7.1 |
A pricier device, or one kept for fewer years, raises the annual share and so the break-even. Many e-readers last a long time: keeping one a few more years is worth as much as a discount.
The reading bands
- Ebooks not cheaper: at the prices entered, the e-reader does not pay off on price.
- Does not pay off: you read fewer books than break-even and spend more than with paper.
- Narrow break-even: up to 1.5 times the break-even books.
- Pays off: 1.5 to 3 times the break-even books.
- Clearly pays off: 3 times the break-even books or more.
Limits of the calculator
The comparison is purely financial. It does not consider second-hand books, library loans (digital ones included), reselling paper books, gifts or the value of a physical library. Nor does it count the practical advantages of an e-reader, such as travel weight or adjustable text size. A subscription only pays off if you read enough titles included in its catalogue.
Frequently asked questions
Is it worth buying an e-reader?
Financially, yes if you read more books than the break-even. With paper books at 15, ebooks at 8 and a 130 e-reader over 5 years, about 4 books a year are enough.
How long does an e-reader take to pay off?
It depends on how much you read. In the example, at 12 books a year it pays off in about 19 months; at 4 books in about 56 months.
How much do you save with an e-reader?
In the example, about 58 a year at 12 books, already counting the device share. The saving depends mainly on the price gap between ebook and paper.
What if ebooks cost as much as paper books?
Then the e-reader does not pay off on price: only the practical advantages of weight, space and convenience remain.
Is an ebook subscription worth it?
Only if you read enough included titles. Enter the annual cost in its field and the average price of the books you would buy anyway.
How long does an e-reader last?
Often several years. The longer you use it, the lower the annual share and so the break-even.
Does the calculator consider second-hand books or the library?
No. If you borrow or buy many books second-hand, your paper spend is lower and the comparison changes: enter a lower average price.
Can I resell paper books?
Yes, and the calculator does not account for it. If you resell often, subtract the average resale value from the paper book price.
Does it work in any currency?
Yes. Enter all prices in the same currency.
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