A printed book has a floor under its price, and many authors find it the hard way. Print on demand charges a cost for each copy that depends on the page count, the trim size, the paper and whether the interior is black and white or colour. The platform and the retailer take their share of the list price, and what remains is the author's royalty. A price that looks reasonable can leave a few cents, or less than nothing, once the print cost is taken away.
Free tool · Book Margin Calculator
Book Margin Calculator that shows what each print copy really earns you
The book margin calculator finds your profit per print copy from the list price, the page count, the print cost and your royalty rate, shows the lowest price that keeps your royalty above zero, and works out what a stock of author copies would cost, so that you can set a price that earns something on every sale. It runs in your browser, uses print cost fields that you can edit and is free for authors who sell paperbacks and hardcovers.
Use the free tool
The book margin calculator is free to use, with no account and nothing uploaded.
- Profit per copy
- Lowest workable price
- Author copy cost
Key facts
- FreeNo cost, no account and no usage limit on the book margin calculator
- In your browserNothing that you type or paste into the book margin calculator is uploaded
- SecondsTypical time from opening the book margin calculator to a result
Free tool
Book margin calculator
Find your profit per print copy from the list price, the page count and the print cost, and see the lowest price that keeps your royalty above zero.
The book margin calculator needs JavaScript, and it works in your browser without sending anything that you enter to a server.
Overview
What the book margin calculator does and why it helps
The calculator makes the arithmetic visible. Enter the list price, the page count, the fixed part of the print cost per copy and the cost per page, and your royalty rate, and the tool works out the print cost, the royalty before print cost, and the profit per copy, which is the list price times the royalty rate minus the print cost. It also shows the lowest price at which the profit is above zero, and if you tell it how many author copies you plan to buy, the cost of that order at the print cost, with shipping extra.
Print cost fields are editable because the cost depends on your trim size, paper and ink and changes over time, and each platform publishes its own calculator for an exact figure. Take the real number from the platform, enter it here and use the tool to compare prices. Compare your price with similar books in your category as well, since readers judge value against the shelf and a price that is too high will not sell, however good the margin.
The book margin calculator shows the profit you make per copy after printing and retailer fees. Authors can use this free book margin calculator as often as they like, and it never asks for payment. It runs as a book margin calculator online, so a laptop, tablet or phone is all you need. It is a book margin calculator for authors, so the defaults assume you are preparing a book rather than a business report. If you publish independently, treat it as a book margin calculator for self-published books of any length. Amazon authors can use it as a book margin calculator for KDP with no changes. It is a book margin calculator no sign up tool, so there is nothing to register. Authors often look for the best book margin calculator, and we have tried to make this one useful by explaining each result, not only displaying it.
It works as a KDP book margin calculator and an Amazon book margin calculator for paperback pricing.
How to use it
How to use the book margin calculator, step by step
Enter the list price
Type the price at which the book is sold. The tool uses it to work out your royalty and your profit on each copy, so use the price you will really charge.
Enter the page count
Type the number of pages in your interior. Print cost depends on page count, so an accurate figure gives an accurate result and an early estimate gives a rough one.
Enter the print cost
Type the fixed cost and the cost per page from your printer's calculator, or accept the defaults. The tool adds them together to give the cost of printing one copy.
Enter your royalty rate
Type the share of the list price that the platform pays you before print cost is deducted. Rates differ between platforms and between sales channels.
Read the profit per copy
The tool shows what you earn on each sale after the print cost. A negative figure means that the price is too low, and the tool says so in plain words.
Check the lowest price and the cost of author copies
The tool shows the lowest price that keeps your profit above zero, and what a stock of author copies would cost you at the printer's price.
How the book margin calculator works
Price times rate, minus the print cost
You enter the list price, the page count, the fixed and per-page parts of the print cost, the royalty rate and the author copies that you plan to buy. The tool calculates the print cost, applies the royalty rate to the price and subtracts the cost to give your profit per copy.
It then shows your margin as a share of the list price and the lowest list price that keeps your royalty above zero. That number is the print cost divided by the royalty rate. Raising the price above it is a matter of what readers will pay, and the tool shows the profit at the price that you have chosen.
The print cost fields are editable because rates differ by platform, trim size, paper and ink, and they change over time. Use your platform's own print cost calculator for your book and enter the figures, and the margin will be accurate.
- Print cost from fixed and per-page parts
- Margin and a lowest workable price
- The cost of your author copies
Method
How the book margin calculator works out its answer
Print cost
The calculator adds a fixed part per copy to a cost per page multiplied by the page count. Both parts are fields that you can edit to match your platform's current figures.
Profit per copy
The list price multiplied by the royalty rate gives the royalty before print cost, and subtracting the print cost gives the profit.
The lowest price
The tool divides the print cost by the royalty rate to find the price at which the profit is zero, and anything above that earns something.
Author copies
Copies that you buy for yourself are bought at the print cost, with shipping on top, so the tool multiplies the print cost by the number of copies and reminds you to add shipping.
Tips
Getting the most from the book margin calculator
Check the printer's own calculator
It gives the true cost for your book and is the best source for the print cost field. The book margin calculator is free and instant, so it is worth running again whenever your book changes.
Test several prices
Small changes in price can change profit a great deal, especially on long books where the margin is thin. Make the book margin calculator a routine step on every project, so that results stay consistent from book to book.
Consider expanded distribution separately
It has a different rate and a different profit per copy, so run the tool again for it. A few minutes with the book margin calculator now saves time across the whole manuscript.
Need it done for you?
When the book margin calculator is not enough
The calculator shows what each copy earns. These services help you raise it, by building an efficient interior and the right print edition.
Paperback Formatting
A print-ready paperback interior sets the page count that decides the print cost, and a formatter can often lower it with careful layout.
See the service →Page Count Reducer
When the page count is high, small layout changes can remove pages, cut the print cost and improve your margin.
See the service →Hardcover Formatting
A hardcover is a premium edition with its own costs and limits, and a formatter prepares the interior and the case files.
See the service →Before and after
Before and after using the book margin calculator
The same paperback, first priced by instinct and then priced from its print cost and royalty.
123Before
- 1A price that left almost nothing after printing
- 2No idea what the lowest workable price was
- 3Author copies bought without a cost
123After
- 1A price with a margin on every copy
- 2A known floor under the price
- 3A planned cost for author copies
- 3problems found in the first review
- 3fixes checked in the final review
- 1named specialist owning every fix
- Fixedprice confirmed in the calculator before you order
A real margin
Every copy earns something, because the price is built from the print cost and the royalty and not from guesswork.
A safe floor
You know the lowest price that keeps the royalty above zero, so a sale never turns a loss.
A planned stock
The cost of author copies is known, so you can budget for events and gifts.
Client reviews
What authors say about our print margin review service
Verified reviews from authors who asked a specialist to handle the print margin review after using the book margin calculator.
As a first-time author, the technical side of self-publishing was genuinely daunting. The consultation covered every decision — platform choice, pricing strategy, metadata, and distribution. I launched with genuine confidence.
The publishing readiness review identified four issues in my manuscript that would have caused rejection. Each was clearly explained and quickly resolved. My book launched without any technical complications.
My KDP file was rejected with a technical error message I could not understand. Book Formatting Experts diagnosed the problem immediately — a bleed issue on three pages — and corrected it the same day. Approved first time.
Good support throughout the KDP upload process. The metadata setup and category selection were explained clearly. One pricing setting needed adjustment after initial setup but it was corrected quickly.
The formatting error fix service saved my launch. My original formatter had made margin errors causing repeated rejection. Book Formatting Experts identified and fixed every issue within 48 hours. My launch was back on schedule.
Navigating IngramSpark's requirements for the first time felt overwhelming. The upload assistance handled everything — metadata, pricing setup, distribution channels. My children's book reached bookstores within two weeks.
My cookbook needed to be set up across multiple platforms simultaneously. The publishing support team handled every submission — KDP, IngramSpark, and Apple Books — with different requirements for each. Flawlessly executed.
Getting historical fiction placed in the right categories on Amazon and IngramSpark required strategic metadata. The team understood the genre classification and the book reached the right readers from the first week.
Good publishing support overall. The KDP metadata setup was thorough. One category selection needed updating after initial launch but it was corrected promptly. The book is performing well in its target categories.
My YA novel needed to reach both English-language and Japanese readers. The multi-region distribution setup was handled correctly across all required platforms. International sales have exceeded my expectations.
The cover is playful, bright, and immediately communicates the tone of the story. My target age group — children aged 6 to 9 — responded exactly as I had hoped when I showed them the design.
I had a previous EPUB that displayed incorrectly on several devices. Book Formatting Experts rebuilt it from scratch. The new version renders beautifully across every reader app I tested.
My bilingual poetry collection had French and Wolof on facing pages. The layout handled both languages with the right visual balance. One alignment correction in revisions and it was exactly right.
My memoir needed a warm, readable layout with consistent chapter styling. The specialist understood exactly what I was after and the finished file exceeded my expectations on every page.
Tight, clean, and exactly on brief. The chapter openers had the tension-driven feel the genre demands without being overdone. Upload to KDP was approved without a single correction requested.
The OCR conversion of my scanned historical documents was thorough and accurate. Every page was cleaned up and the resulting Word document was fully editable. A significant time saving compared to manual transcription.
The cover honours the cultural themes of my book while appealing to an international readership. The imagery, colour palette, and typography choices were all discussed through a genuinely collaborative process.
My business EPUB had tables and callout boxes that needed to be handled carefully. Everything was converted cleanly without losing any structural information. The file passed Amazon's validator on the first check.
More free tools
More free tools to use with the book margin calculator
Each of these tools is free, runs in your browser and works well alongside the book margin calculator.
Book Pricing Calculator
For a print margin review, free book pricing calculator that works in your browser, plus a done-for-you pricing strategy review service.
Open the tool →Print Cost Comparison Calculator
For your print margin review, free print cost comparison calculator that works in your browser, plus a done-for-you printer quote comparison service.
Open the tool →KDP Royalty Calculator
Free kdp royalty calculator that works in your browser, plus a done-for-you KDP royalty review service with your print margin review.
Open the tool →Page Count Estimator
On this print margin review job, free page count estimator that works in your browser, plus a done-for-you interior layout plan service.
Open the tool →Book Break Even Calculator
With your print margin review, free book break even calculator that works in your browser, plus a done-for-you break-even plan service.
Open the tool →Self Publishing Budget Calculator
With your print margin review, free self publishing budget calculator that works in your browser, plus a done-for-you publishing budget plan service.
Open the tool →FAQ
Book Margin Calculator: questions answered
These are the questions authors ask most about the book margin calculator, including accuracy, privacy and what to do next. If your question about the print margin review is missing, request a quote and a specialist will reply.
What is a book margin calculator?
It is a tool that finds your profit per print copy from the price, page count, print cost and royalty rate.
How is the profit on a printed book calculated?
Multiply the list price by the royalty rate and subtract the print cost. The result is your profit per copy.
What is the lowest price I can charge?
It is the print cost divided by the royalty rate. Anything above that gives a positive royalty.
Why does page count change the price?
Print cost depends on the pages, so a longer book costs more to print and needs a higher price for the same profit.
What royalty rate should I use?
Use the rate that applies to the channel, such as 60 percent on the main store, and a lower rate for expanded distribution.
Where can I find my print cost?
Use the print cost calculator of your platform with your trim size, paper and page count.
How much do author copies cost?
The print cost per copy, plus shipping and any tax. The calculator shows the print cost part.
Does the calculator include shipping?
No. Shipping on author copies depends on where you live and is extra.
Should I price a paperback higher than an ebook?
Usually yes, because print has a cost. Check similar books to see what readers expect.
Can I use it for a hardcover?
Yes. Enter the higher print cost of a hardcover and the royalty rate for the channel.
Does the book margin calculator keep anything that I enter?
No. The book margin calculator works in your browser, so what you enter stays on your device and is never saved.
Is the book margin calculator free?
Yes, the margin calculator costs nothing, needs no account and puts no limit on the prices you test.
How does a book margin calculator work?
It subtracts printing cost and retailer share from your list price to give profit per copy.
How to use a book margin calculator?
Enter price, page count and trim size to see your profit.
Is there a book margin calculator with examples?
Yes. The page includes a worked example so you can compare it with your own numbers or text. Compare two list prices.
What is the book margin calculator formula?
Margin equals list price minus printing cost minus the retailer's share.
Can I use a book margin calculator spreadsheet instead?
You can, and a book margin calculator spreadsheet works if you are happy to maintain the formulas yourself. This page does the maths for you and shows the working, so there is nothing to copy or update.
Work with a specialist
Turn what you learn from the book margin calculator into a finished book
The book margin calculator costs nothing, and so does asking what a specialist would do with your book. When the book margin calculator has done its part and you want finished files, a fixed price and one named person who owns the job, we are ready to start.