5.25 x 8 in · 210 pages
210-page 5.25 x 8 in book: spine width & cover size
A 210-page 5.25 x 8 in paperback has a spine of 0.4729 in (12.01 mm) on white paper or 0.525 in on cream. Full cover with bleed: 11.223 x 8.25 in.
0.473 inSpine, white paper12.01 mm
0.525 inSpine, cream paper13.34 mm
11.22 x 8.25Full cover, inchesincl. bleed
228 gEstimated weight8 oz
Cover template (white paper)
Spine and cover by paper type
| Paper | Spine | Spine (mm) | Full cover (in) | Full cover (mm) | At 300 ppi |
|---|---|---|---|---|---|
| White paper, black ink | 0.4729 in | 12.01 mm | 11.223 x 8.25 in | 285.1 x 209.6 mm | 3,367 x 2,475 px |
| Cream paper, black ink | 0.525 in | 13.34 mm | 11.275 x 8.25 in | 286.4 x 209.6 mm | 3,382 x 2,475 px |
| Standard color (white) | 0.4729 in | 12.01 mm | 11.223 x 8.25 in | 285.1 x 209.6 mm | 3,367 x 2,475 px |
| Premium color (white) | 0.4929 in | 12.52 mm | 11.243 x 8.25 in | 285.6 x 209.6 mm | 3,373 x 2,475 px |
Per-page factors are those published by KDP; IngramSpark and offset printers use their own paper calipers.
Other printers: spine by paper PPI
| Paper PPI | Typical stock | Spine | Spine (mm) |
|---|---|---|---|
| 350 PPI | Bulky / heavy stock (~70 lb text) | 0.6 in | 15.24 mm |
| 400 PPI | Cream book paper (~55 lb) | 0.525 in | 13.34 mm |
| 444 PPI | White book paper (~50 lb) | 0.473 in | 12.01 mm |
| 500 PPI | Lightweight text (~45 lb) | 0.42 in | 10.67 mm |
| 600 PPI | Thin text (~40 lb) | 0.35 in | 8.89 mm |
If your printer quotes pages per inch (PPI), spine = pages ÷ PPI. Ask for the exact PPI of your chosen stock.
Designing this cover
- Build the cover canvas at 11.223 x 8.25 in — or 3,367 x 2,475 px at 300 ppi.
- The back cover runs from the left edge to 5.375 in; the spine from 5.375 to 5.848 in; the front cover after that.
- Spine text is allowed — centre it and keep 0.0625 in clear on each side.
- Keep titles and faces at least 0.25 in inside the trim; KDP places the barcode in a 2 x 1.2 in area at the lower right of the back cover.
- Export as a flattened PDF (PDF/X-1a is safest) with fonts embedded.
Nearby page counts
| Pages | Spine (white) | Spine (cream) | Full cover (white) |
|---|---|---|---|
| 150 pages | 0.3378 in | 0.375 in | 11.088 x 8.25 in |
| 160 pages | 0.3603 in | 0.4 in | 11.11 x 8.25 in |
| 170 pages | 0.3828 in | 0.425 in | 11.133 x 8.25 in |
| 180 pages | 0.4054 in | 0.45 in | 11.155 x 8.25 in |
| 190 pages | 0.4279 in | 0.475 in | 11.178 x 8.25 in |
| 200 pages | 0.4504 in | 0.5 in | 11.2 x 8.25 in |
| 220 pages | 0.4954 in | 0.55 in | 11.245 x 8.25 in |
| 230 pages | 0.518 in | 0.575 in | 11.268 x 8.25 in |
| 240 pages | 0.5405 in | 0.6 in | 11.29 x 8.25 in |
| 250 pages | 0.563 in | 0.625 in | 11.313 x 8.25 in |
| 260 pages | 0.5855 in | 0.65 in | 11.336 x 8.25 in |
| 270 pages | 0.608 in | 0.675 in | 11.358 x 8.25 in |
210 pages in other trim sizes
| Trim | Spine (white) | Full cover (white) |
|---|---|---|
| 5 x 8 in | 0.4729 in | 10.723 x 8.25 in |
| 5.06 x 7.81 in | 0.4729 in | 10.843 x 8.06 in |
| 5.5 x 8.5 in | 0.4729 in | 11.723 x 8.75 in |
| 6 x 9 in | 0.4729 in | 12.723 x 9.25 in |
| 6.14 x 9.21 in | 0.4729 in | 13.003 x 9.46 in |
| 6.69 x 9.61 in | 0.4729 in | 14.103 x 9.86 in |
| 7 x 10 in | 0.4729 in | 14.723 x 10.25 in |
| 7.5 x 9.25 in | 0.4729 in | 15.723 x 9.5 in |
| 8 x 10 in | 0.4729 in | 16.723 x 10.25 in |
| 8.5 x 8.5 in | 0.4729 in | 17.723 x 8.75 in |
| 8.5 x 11 in | 0.4729 in | 17.723 x 11.25 in |
Spine width depends only on page count and paper; the cover width changes with the trim.
Frequently asked questions
How wide is the spine of a 210-page 5.25 x 8 in book?
On white paper it is 0.4729 in (12.01 mm); on cream paper 0.525 in (13.34 mm), using KDP's per-page factors.
What size should the full cover be?
For white paper: 11.223 x 8.25 in (285.1 x 209.6 mm) including 0.125 in bleed on every side. For cream paper: 11.275 x 8.25 in.
Can I put text on the spine?
Yes. KDP allows spine text only for books with more than 79 pages; keep it at least 0.0625 in (1.6 mm) from each spine edge.
How heavy is a 210-page 5.25 x 8 in paperback?
About 228 g (8 oz) on white paper with a standard cover — useful for estimating postage.