Book Details
Enter details and click Calculate to view template
Official Template Generators
While our calculator provides accurate dimensions, platforms occasionally update their requirements. We highly recommend downloading the official template files directly from your printer to ensure perfect compliance.
Amazon KDP
Generate the official paperback and hardcover templates directly from Amazon.
Get KDP Template →IngramSpark
Get the exact spine and bleed requirements for IngramSpark's global distribution network.
Get IngramSpark Template →Barnes & Noble Press
Calculate dimensions for B&N's premium paperback and hardcover book printing.
Get B&N Template →Lulu
Start a project on Lulu to download templates matched perfectly to your paper weight and binding.
Go To Lulu →Why correct cover dimensions matter
A cover that is even a few millimetres off gets rejected by Amazon KDP, IngramSpark, Lulu, or Barnes and Noble. The most common error is the spine: its width depends on your page count and paper type, and it changes every time you edit the manuscript. Bleed adds a safety margin on all four sides so nothing important is trimmed away.
What these calculators do
Select your platform and trim size, then enter your page count and paper type. The calculator returns your full cover width and height, exact spine width, and bleed requirements, matched to that printer's specifications.
How to use the calculators
- Choose your platform (Amazon KDP, IngramSpark, Lulu, or Barnes and Noble) and trim size.
- Enter your final page count.
- Select your interior paper type.
- Read the full cover dimensions and apply them in your design file.
Pro tips
- Always include bleed. Most printers want 0.125 inch or 3mm on every side.
- Round the spine width to your platform's stated precision, then recheck after any edit.
- If the math is not your thing, let a professional handle formatting so the file passes review the first time.
Need the manuscript formatted?
Let a professional handle formatting so the file passes review the first time, built exactly to spec.
See Formatting ServiceCustom Cover Design
Stand out on Amazon and IngramSpark with a custom, high-converting book cover designed to sell.
Order Custom DesignCompare options on the pricing page.
Frequently asked questions
Where do I get an official KDP book cover template?
You can get an official, accurate KDP book cover template directly from Amazon at kdp.amazon.com/cover-calculator. Enter your trim size, page count, and paper type to generate exact dimensions.
How do I calculate spine width for KDP paperback?
KDP calculates spine width using your page count multiplied by the paper stock thickness (e.g., 0.002252 inches per page for white paper). Use the official KDP Cover Calculator for precise values.
What is the bleed requirement for IngramSpark covers?
IngramSpark requires 0.125 inches of bleed on all sides for paperback and 0.625 inches wrap for hardcover. Use the official IngramSpark Cover Template Generator for your specific trim size.
