OONA COVER MAKER
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Free book-cover tools

Free calculators for print-ready covers. The spine, page-count and royalty calculators live on our sister site Book Maker — same account, same wallet.

Cover size calculatorExact wrap + ebook dimensions for your trim, pages and paper Spine width calculatorKDP, IngramSpark, B&N and Lulu spine math Page count estimatorWord count → printed pages by trim size KDP royalty calculatorPrinting cost and royalty per copy
Book cover, spinning in 3D
OONA Cover Maker

One-click covers, print-ready

Front, spine and back \u2014 a full wrap-around cover sized exactly for KDP, plus a matching Kindle edition. All the design tools you need for instant, print-ready art. Free preview, no card.

Make your cover →

Prefer not to do any of this by hand? The cover studio computes every dimension automatically and exports press-ready files for KDP, IngramSpark, Barnes & Noble and Lulu.