KDP Cover Calculator

KDP paperback cover workflow

KDP Cover Size Checker and Template Generator

Calculate a full paperback wrap from trim size, page count, paper type, and bleed. Then download a guide template or check an existing cover size.

Open calculatorCheck cover size

Full wrap size = back cover + spine + front cover + bleed.

Verified formula assumptions: 2026-07-08

Calculate the paperback wrap

Enter the production settings KDP uses. The output updates the cover size, spine width, SVG guide, and checker target in the browser.

Full width0.000 in
Full height0.000 in
Spine0.000 in

Layout measurements

    Estimates only. Verify the final file with Amazon KDP's official cover calculator and previewer before upload.

    Check an existing cover size

    Enter the document size from Canva, Acrobat, or another design tool. Differences within 0.01 inch are treated as close.

    Reference

    Paperback cover rules this v1 uses

    Formula assumptions were checked against official KDP guidance on 2026-07-08. This tool is independent and should be used as a planning aid before final KDP verification.

    Inputv1 assumption
    Bleed0.125 in on outside edges when enabled.
    Cover widthBleed + back trim + spine + front trim + bleed.
    Cover heightBleed + trim height + bleed.
    Spine textKDP cover guidance says more than 79 pages; this tool warns below 80 pages.
    GroundwoodPage-count limits appear in KDP print options, but no groundwood spine factor was found in the current cover formula page, so v1 does not auto-calculate groundwood.

    Official sources checked

    Current assumptions are based on Amazon KDP's paperback cover formatting page and trim-size page. Recheck them before publishing a production cover file.

    Create a Paperback CoverCover width, cover height, bleed, spine measurements, spine text, and barcode guidance.Set Trim Size, Bleed, and MarginsTrim-size availability and page-count ranges by paper and ink type.

    Common trim presets

    TrimTypical use
    5 x 8 inCompact fiction and nonfiction paperbacks.
    5.5 x 8.5 inCommon memoir, fiction, and trade paperback size.
    6 x 9 inPopular trade paperback and low-content book size.
    7 x 10 inWorkbooks, manuals, and larger nonfiction.
    8 x 10 inPicture-heavy books, coloring books, and journals.
    8.5 x 11 inLetter-size workbooks, planners, and manuals.

    Pages

    Cover, spine, bleed, and Canva workflows

    Each page has the same calculator plus focused guidance for a specific search intent.

    KDP Cover CalculatorCalculate KDP paperback cover size, spine width, bleed, trim lines, safe areas, and download a simple SVG cover guide template.KDP Paperback Cover CalculatorCalculate paperback cover dimensions for KDP, including trim size, spine width, bleed, and a downloadable SVG guide.Book Spine Width CalculatorCalculate paperback spine width from manuscript page count and paper type, with spine text warnings for KDP uploads.Book Trim Size TemplateCompare common KDP paperback trim sizes and generate a cover guide for books, journals, workbooks, and planners.KDP Bleed Size CalculatorCalculate paperback cover dimensions with bleed, trim lines, safe margins, and a guide template for KDP cover design.KDP Cover Template GeneratorGenerate a simple SVG guide template for a KDP paperback cover with front, back, spine, bleed, and barcode area.KDP Cover Size CheckerCheck an existing paperback cover width and height against calculated KDP cover dimensions before upload.KDP Cover Size Calculator for CanvaFind the Canva custom size for a KDP paperback cover, including front cover, back cover, spine, and bleed.