KDP Margin Calculator
This interactive tool will calculate the exact margins required for your KDP paperback to pass automated review.
How KDP Margins Work
Amazon KDP requires specific margins to ensure your text isn’t cut off during the printing and trimming process. The most critical margin is the gutter (the inside margin where the pages are bound to the spine).
The thicker your book (the higher the page count), the larger the gutter must be, otherwise the text will disappear into the crease of the book.
Want us to calculate it for you?
Our AI engine calculates margins automatically based on your exact word count.
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