About the Textbook Rent vs Buy Calculator
This textbook rent vs buy calculator compares the real cost of the four common ways to get a college textbook: buying it new, buying it used, renting it, or buying a digital edition or e-book rental. For the print options it subtracts what you expect to get back by selling the book at the end of term, and it adds a separate online access code if your course requires one for homework and the print book does not include it.
It is built for students staring at a bookstore list and wondering whether renting is really cheaper, and for anyone deciding whether to keep a book for a later course. Resale value is entered as a percentage of what you paid, because buyback offers vary widely by title, edition and time of year; set it to zero if you plan to keep the book.
Rental extras cover shipping, highlighting or late fees. The digital price should be the version that includes any required access code (many publishers bundle the e-book with the homework platform). Enter the number of similar books to see the total saving for the semester.
How to use the textbook rent vs buy calculator
- 1Look up the new, used, rental and digital prices for the same edition (ISBN).
- 2Estimate what share of the price you could resell new and used copies for — 0% if you will keep the book.
- 3Add rental shipping or fees and any required standalone access code.
- 4Enter how many similar books you need this term.
- 5Pick the cheapest option and check the break-even resale percentage before buying used.
Formula and method
For books you buy, the real cost is the price you pay minus what you get back when you sell it, so the calculator multiplies each purchase price by one minus your expected resale percentage. Renting costs the rental price plus any shipping or fees, with nothing back at the end. A required standalone access code is added to every print option, while the digital price is assumed to include it.
The cheapest option is the lowest net cost among options with a price entered, and the totals are multiplied by the number of similar books. The break-even resale percentage shows how much of the used price you would need to recover for buying used to cost the same as renting: 1 − (rent + fees) ÷ used price.
- Rₙ, Rᵤ
- Expected resale value as a share of the new or used price paid
- Code
- Standalone access code price, if your course requires one
Worked examples
Typical intro textbook
A new $180 book resold at 40% costs $108 net; a $110 used copy resold at 35% costs $71.50. Renting costs $60 + $5 = $65 and the e-book $85, so renting is cheapest — $43 less than buying new. Buying used would win if you could resell it for at least 40.9% of its price.
Course requires a $100 access code
Adding a $100 standalone access code to each print option pushes renting to $165. The $120 digital bundle that includes the code becomes the cheapest by $45.
Strong resale market for four books
If used copies resell for 60%, each costs only $44 net, versus $65 to rent. Across four similar books buying used costs $176 in total — $256 less than buying all four new and $84 less than renting.
Frequently asked questions
Is it cheaper to rent or buy textbooks?+
Renting is usually cheaper than buying new, but buying used and reselling can beat renting when resale prices hold up. The break-even resale percentage here tells you how much of the used price you need to recover for that to happen. Digital editions win when a course requires an access code.
How much can I sell a used textbook for?+
Buyback offers vary widely by title and timing. They are highest for current editions sold right at the end of term, when the course will use the book again, so check a few buyback sites before estimating. Old editions may fetch almost nothing.
What is a textbook access code?+
A single-use code that unlocks an online homework or courseware platform from the publisher. It cannot be resold, and used or rented books rarely include a working code, which is why it is added to print options.
Should I keep my textbooks?+
Keep books you will use in later courses, for professional exams or as references in your major. Set the resale value to 0% to see the true cost of keeping them versus renting.
Are inclusive access textbook programs a good deal?+
Inclusive or equitable access programs bill digital materials through your tuition account, often at a discount. Compare the per-course fee with the cheapest option here; you can usually opt out by a deadline if buying used or renting is cheaper.