Description
One-time purchase · No subscription
Take the guesswork out of building a print book cover.
Roxie’s Cover & Spine Calculator gives self-publishing authors and book designers the measurements they need before opening Photoshop, InDesign, Affinity, Canva, or another design program.
Enter your book’s trim size, page count, paper type, and binding, and the calculator does the measuring for you. You’ll see your spine width, complete cover dimensions, front and back panel sizes, guide positions, measurements in inches and millimeters, and 300-DPI pixel dimensions.
It includes tools for Amazon KDP paperbacks, KDP hardcover case laminate, Lulu hardcover casewrap, BookVault casebound books, custom case wraps, and custom dust jackets.
A visual flat-cover diagram shows exactly how the back cover, spine, front cover, hinges, wraps, bleeds, and jacket flaps fit together. You can also save a working project, copy your measurements, download a production report, or print the results for your files.
And because publishing specifications have an unfortunate habit of making perfectly intelligent people reach for aspirin, the calculator also identifies when a result should be checked against a printer-generated production template.
No AI. No account. No monthly fee. No manuscript upload.
The calculator runs privately in your regular web browser and can be used offline. Buy it once and keep it in your publishing toolbox whenever you need it.
Especially useful for independent authors, small publishers, cover designers, formatters, and anyone preparing print books for more than one publishing platform.
Printer specifications may change. Final production artwork should always be checked against the printer’s current requirements and generated template.
