Book Costs, KDP Covers and ISBNs

Work out what a book costs to make and what numbers it needs before you upload it. The KDP cover and print-cost calculators use the figures KDP publishes, the budget calculator adds up your own quotes, and the ISBN tools price a set of ISBNs and check or convert the numbers. Every page shows where its figures come from and the date they were checked.

Tools in this group

• Self-Publishing Cost Calculator — Type your quotes for editing, cover, formatting, ISBNs and marketing to get the total budget, the cost per planned copy and how many copies you must sell to break even.
• ISBN-13 Check Digit Calculator — Enter the first 12 digits of an ISBN to find the check digit, or a full number to check it, with the sum, weights and remainder shown.
• ISBN Converter — Type an ISBN-10 or ISBN-13, or paste a list, to get both forms with the check digit verified and a plain reason if the number is wrong.
• ISBN Cost Calculator — Enter how many books you publish and in which formats to see how many ISBNs you need and the cheapest way to buy them from the published US or UK prices.
• KDP Cover Calculator — Enter the trim size, page count and paper to get the spine width and the full cover size with bleed, plus the pixel size, barcode area and spine-text rule.
• KDP Print Cost Calculator — Enter the Amazon store, interior, trim size and page count to see the printing cost per copy, the minimum list price KDP allows and the royalty at your price.