How many books do I need to sell?
Enter the income you want and your book prices. You get the royalty on each sale, then how many ebooks or paperbacks you would need to sell each month and each day, with the sum written out.
Royalty figures from KDP's own help pages, checked on 13-Nov-26: paperback printing cost, paperback royalty, ebook royalties, ebook price bands and delivery costs. KDP can change them. For a final price, check the figure KDP shows in your own account.
The result is a sum, not a forecast. It shows what a goal would take at your prices, before tax. It does not say how many books you will sell. Ad spend per sale is the number you enter. It covers Amazon sales in the three stores above, and not Expanded Distribution, hardcovers or other stores.
More free tools: the self-publishing cost calculator, the book page count calculator, the KDP keyword box checker, the KDP book description formatter, the KDP cover size and spine width calculator, the ISBN barcode generator and the KDP royalty and print cost calculator. See all the free tools.
Not sure how to get to that number?
Book a free 25-minute call with me on Zoom. You tell me where your book is now, and you leave with a clear next step.
Prefer to start on your own? Take the free checklist, the 12 steps I follow for every book.