Free KDP tool · no account
KDP Cover Size Calculator
A KDP paperback cover is one flat image: back cover, spine and front cover with bleed on every side. Pick your trim size, page count and paper to get the full-wrap size in inches, millimetres and pixels at 300 DPI, then download a template with the guides drawn in.
Full cover size
12.7 × 9.25 in
322.6 × 234.9 mm
At 300 DPI
3810 × 2775
pixels
Spine
0.45 in
Spine text allowed
Red = spine folds · blue dashed = safe area · shaded edge = bleed. Hardcover sizes include the board wrap.
Want the whole book, not just the numbers?
Describe a book in one sentence and kdpbook.us writes, illustrates and lays it out, then exports the KDP-ready interior and cover. Start with 2,000 free credits, no card.
Frequently asked questions
What is the full-wrap cover formula?
For a paperback: two times the trim width, plus the spine width, plus 0.125 in of bleed on each outer edge. Height is the trim height plus 0.125 in of bleed at the top and bottom. Hardcovers add extra for the board overhang and wrap.
What resolution should my cover be?
Export at 300 DPI at the pixel size shown by the calculator. Lower resolution gets flagged by KDP's preview.
Where does the barcode go?
KDP adds the barcode in the lower right of the back cover. Leave a clear 2 × 1.2 in area there. The template marks it.
More free KDP tools
KDP Spine Width Calculator
Spine width from page count and paper type, with the spine-text rule.
KDP Printing Cost Calculator
Print cost per copy and the minimum list price KDP will accept.
KDP Royalty Calculator
Royalty per sale for print and Kindle at any list price.
KDP Trim Sizes
Every standard KDP trim drawn to scale, with page limits.
KDP Margins & Bleed Calculator
Gutter by page count, outside margins and page size with bleed.
KDP Rejection Decoder
Paste KDP's rejection email and see each issue with its fix.