Instant KDP Size Calculations
Get accurate Amazon KDP cover dimensions, spine width, and bleed settings in seconds. No signup required - completely free KDP calculator.
Free Amazon KDP Cover Calculator
Calculate exact Kindle book cover dimensions, spine width, and bleed settings. The most accurate KDP size calculator for paperback and hardcover self-publishing.
KDP Cover Calculator Features
Official Amazon KDP Specifications
Calculations based on official Amazon KDP and Kindle Direct Publishing specifications. Avoid cover rejections with accurate dimensions.
Free KDP Cover Template Download
Download print-ready SVG template with exact spine placement. Perfect for Photoshop, Canva, or any design software.
How to Calculate KDP Cover Size & Spine Width
Get exact Amazon KDP book cover dimensions and spine width in three easy steps.
1
Select Your KDP Book Trim Size
Choose from standard Amazon KDP trim sizes like 6x9" (most popular), 5.5x8.5", 5x8", or 8.5x11". These are the official Kindle paperback dimensions supported by KDP.
2
Enter Page Count for Spine Width
Input your total page count and paper type (white, cream, or color). The KDP spine calculator automatically computes spine width using official Amazon paper thickness values.
3
Get Your KDP Cover Dimensions
View complete KDP cover specifications: full cover width, spine width, bleed areas, and safe zones. Download the template to start designing your Kindle book cover.
Who Uses Our Amazon KDP Cover Calculator?
Self-publishing authors and designers use our KDP calculator for accurate Kindle book cover dimensions.
Amazon KDP Self-Publishers
Calculate exact cover dimensions for Kindle Direct Publishing. Get your KDP paperback and hardcover specifications right the first time - avoid rejections and delays.
Kindle Ebook Authors
Get the correct Kindle ebook cover size (1600x2560 pixels recommended) and format specifications for professional-looking ebook listings on Amazon.
Book Cover Designers
Quickly calculate KDP cover specs for client projects. Our spine width calculator provides industry-standard dimensions that Amazon accepts every time.
Independent Publishers
Streamline your Amazon publishing workflow. Calculate dimensions for entire book series using official KDP specifications for consistent, professional results.
KDP Cover Calculator FAQ
The KDP spine width calculator determines your book spine thickness based on page count and paper type. Amazon KDP uses 0.0025" per page for white/cream paper and 0.002252" for color paper. Our calculator applies these exact formulas automatically.
For KDP paperbacks, cover size depends on your trim size plus spine width plus bleed (0.125" on all sides). For Kindle ebooks, Amazon recommends 1600x2560 pixels (1:1.6 ratio) with minimum 625x1000 pixels. Our KDP calculator provides both print and ebook dimensions.
The most popular KDP trim sizes are: 6x9" (novels, non-fiction), 5.5x8.5" (trade paperback), 5x8" (compact books), 8.5x11" (workbooks, textbooks), and 8x10" (cookbooks, photo books). All are supported by our KDP size calculator.
KDP requires 0.125" bleed on all edges. Full cover width = Back cover + Spine + Front cover + (0.25" total bleed). Our KDP cover calculator automatically adds bleed to give you the exact upload dimensions Amazon requires.
Amazon KDP requires minimum 79 pages for spine text. Books under 79 pages will have a blank spine. Our KDP spine calculator shows whether your book qualifies for spine text based on your page count.
Our calculations use official Amazon KDP specifications for paper thickness, bleed requirements, and trim sizes. The dimensions match exactly what KDP expects, preventing cover rejections during upload.
Yes! Besides paperback calculations, we provide Kindle ebook format size recommendations. Amazon recommends 1600x2560 pixels for ebook covers with a 1:1.6 height-to-width ratio for optimal display.
For maximum visibility on Amazon, use 2560x1600 pixels for Kindle ebooks. For paperbacks, ensure your cover design extends to the full bleed area. Our KDP cover page calculator provides the exact dimensions for both formats.
Yes! Our KDP book size calculator supports both paperback and hardcover case laminate covers. Hardcover dimensions include additional wrap-around allowances that Amazon requires for case laminate binding.
After entering your book specs, click "Download Template" to get an SVG file with exact spine placement, bleed guides, and safe zones. Import this into Photoshop, Canva, InDesign, or any design software to create your cover.
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