6.69 x 9.61 in · 380 pages
380-page 6.69 x 9.61 in book: spine width & cover size
A 380-page 6.69 x 9.61 in paperback has a spine of 0.8558 in (21.74 mm) on white paper or 0.95 in on cream. Full cover with bleed: 14.486 x 9.86 in.
0.856 inSpine, white paper21.74 mm
0.95 inSpine, cream paper24.13 mm
14.49 x 9.86Full cover, inchesincl. bleed
613 gEstimated weight21.6 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 | 0.8558 in | 21.74 mm | 14.486 x 9.86 in | 367.9 x 250.4 mm | 4,346 x 2,958 px |
| Cream paper, black ink | 0.95 in | 24.13 mm | 14.58 x 9.86 in | 370.3 x 250.4 mm | 4,374 x 2,958 px |
| Standard color (white) | 0.8558 in | 21.74 mm | 14.486 x 9.86 in | 367.9 x 250.4 mm | 4,346 x 2,958 px |
| Premium color (white) | 0.8919 in | 22.65 mm | 14.522 x 9.86 in | 368.9 x 250.4 mm | 4,357 x 2,958 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) | 1.0857 in | 27.58 mm |
| 400 PPI | Cream book paper (~55 lb) | 0.95 in | 24.13 mm |
| 444 PPI | White book paper (~50 lb) | 0.8559 in | 21.74 mm |
| 500 PPI | Lightweight text (~45 lb) | 0.76 in | 19.3 mm |
| 600 PPI | Thin text (~40 lb) | 0.6333 in | 16.09 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 14.486 x 9.86 in — or 4,346 x 2,958 px at 300 ppi.
- The back cover runs from the left edge to 6.815 in; the spine from 6.815 to 7.671 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) |
|---|---|---|---|
| 320 pages | 0.7206 in | 0.8 in | 14.351 x 9.86 in |
| 330 pages | 0.7432 in | 0.825 in | 14.373 x 9.86 in |
| 340 pages | 0.7657 in | 0.85 in | 14.396 x 9.86 in |
| 350 pages | 0.7882 in | 0.875 in | 14.418 x 9.86 in |
| 360 pages | 0.8107 in | 0.9 in | 14.441 x 9.86 in |
| 370 pages | 0.8332 in | 0.925 in | 14.463 x 9.86 in |
| 390 pages | 0.8783 in | 0.975 in | 14.508 x 9.86 in |
| 400 pages | 0.9008 in | 1 in | 14.531 x 9.86 in |
| 410 pages | 0.9233 in | 1.025 in | 14.553 x 9.86 in |
| 420 pages | 0.9458 in | 1.05 in | 14.576 x 9.86 in |
| 430 pages | 0.9684 in | 1.075 in | 14.598 x 9.86 in |
| 440 pages | 0.9909 in | 1.1 in | 14.621 x 9.86 in |
380 pages in other trim sizes
| Trim | Spine (white) | Full cover (white) |
|---|---|---|
| 5 x 8 in | 0.8558 in | 11.106 x 8.25 in |
| 5.06 x 7.81 in | 0.8558 in | 11.226 x 8.06 in |
| 5.25 x 8 in | 0.8558 in | 11.606 x 8.25 in |
| 5.5 x 8.5 in | 0.8558 in | 12.106 x 8.75 in |
| 6 x 9 in | 0.8558 in | 13.106 x 9.25 in |
| 6.14 x 9.21 in | 0.8558 in | 13.386 x 9.46 in |
| 7 x 10 in | 0.8558 in | 15.106 x 10.25 in |
| 7.5 x 9.25 in | 0.8558 in | 16.106 x 9.5 in |
| 8 x 10 in | 0.8558 in | 17.106 x 10.25 in |
| 8.5 x 8.5 in | 0.8558 in | 18.106 x 8.75 in |
| 8.5 x 11 in | 0.8558 in | 18.106 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 380-page 6.69 x 9.61 in book?
On white paper it is 0.8558 in (21.74 mm); on cream paper 0.95 in (24.13 mm), using KDP's per-page factors.
What size should the full cover be?
For white paper: 14.486 x 9.86 in (367.9 x 250.4 mm) including 0.125 in bleed on every side. For cream paper: 14.58 x 9.86 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 380-page 6.69 x 9.61 in paperback?
About 613 g (21.6 oz) on white paper with a standard cover — useful for estimating postage.