What the calculator returns
The result shows full cover width, full cover height, spine width, front cover, back cover, bleed, safe margin notes, and a barcode reserve area. The SVG template uses the same dimensions so you can inspect the guide before opening it in a design tool.
The formulas in this version are for paperback covers only. Hardcover, case laminate, dust jacket, and other print platforms need separate rules.
How to use the size
Use the full cover width and height as the document size for a wraparound paperback cover. Place the back cover on the left, the spine in the middle, and the front cover on the right for left-to-right books.
If your artwork reaches the edge of the page, keep bleed enabled and extend background color or imagery into the bleed area.
Example trim and paper references
| Preset | Use case |
|---|---|
| 5 x 8 in | Compact fiction and nonfiction paperbacks. |
| 5.5 x 8.5 in | Common memoir, fiction, and trade paperback size. |
| 6 x 9 in | Popular trade paperback and low-content book size. |
| 7 x 10 in | Workbooks, manuals, and larger nonfiction. |
FAQ
Is this an official Amazon KDP calculator?
No. This is an independent planning tool. Always verify final dimensions with the official KDP cover calculator and previewer before upload.
Why did my odd page count change?
Print manuscripts commonly resolve to an even page count. This calculator uses the next even page count and shows a warning so the spine estimate is not too small.