KDP trim size
5.5" × 8.5" KDP Cover Template & Dimensions
5.5 × 8.5 in is the classic digest trade size, widely used for literary fiction, memoir and self-help. It reads noticeably roomier than 5 × 8 while staying easy to hold, and it photographs well next to traditionally published paperbacks — a quiet credibility signal for indie titles.
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- Trim size
- 5.5" × 8.5"
- 13.97 × 21.59 cm
- Min front-cover image
- 1,688 × 2,625 px
- at 300 DPI, incl. bleed
- Bleed
- 0.125 in
- every outside edge
5.5" × 8.5"
Full-wrap cover dimensions
Your cover file holds back cover + spine + front cover plus 0.125 in of bleed on each outside edge, so its width depends on page count and paper. For example, at 300 pages on white paper a 5.5" × 8.5" cover is 11.9256 × 8.75 in. All values below are computed from KDP's formula.
| Pages | Paper | Spine (in) | Cover W × H (in) | Cover W × H (px @ 300) |
|---|---|---|---|---|
| 100 | white | 0.2252 | 11.4752 × 8.75 | 3,443 × 2,625 |
| 100 | cream | 0.25 | 11.5 × 8.75 | 3,450 × 2,625 |
| 200 | white | 0.4504 | 11.7004 × 8.75 | 3,510 × 2,625 |
| 200 | cream | 0.5 | 11.75 × 8.75 | 3,525 × 2,625 |
| 300 | white | 0.6756 | 11.9256 × 8.75 | 3,578 × 2,625 |
| 300 | cream | 0.75 | 12 × 8.75 | 3,600 × 2,625 |
| 400 | white | 0.9008 | 12.1508 × 8.75 | 3,645 × 2,625 |
| 400 | cream | 1 | 12.25 × 8.75 | 3,675 × 2,625 |
| 500 | white | 1.126 | 12.376 × 8.75 | 3,713 × 2,625 |
| 500 | cream | 1.25 | 12.5 × 8.75 | 3,750 × 2,625 |
Spine width, 100–500 pages
Spine width is page count × paper thickness (0.002252 in/page white, 0.0025 in/page cream) — it doesn't depend on trim size. Real values, drawn to scale:
white paper cream paper
Need a different page count? The spine width calculator covers KDP's full 24–828 page range, and the cover size calculator turns any combination into exact file dimensions.
Other popular trim sizes
More free KDP tools
- Cover Creator Turn your ebook cover into a print-ready full-wrap PDF.
- Spine Width Calculator Pages × paper thickness, in inches, millimetres and pixels.
- Cover Size Calculator Exact full-wrap dimensions for any trim, page count and paper.
- Template Generator Blank cover template with bleed, trim and safe-zone guides.
- Blog Plain-English guides to KDP cover specs and print prep.