Book trim size
8.5 x 8.5 in Square trim size
8.5 x 8.5 in · 215.9 x 215.9 mm. The standard large square. Picture books and coloring books love it because spreads become a wide 17 x 8.5 in canvas.
About the 8.5 x 8.5 in format
The standard large square. Picture books and coloring books love it because spreads become a wide 17 x 8.5 in canvas.
Typical uses: Picture books, Coloring books, Photography, Art.
Genres where this size is a common choice: Picture Books, Photography & Art Books, Coloring & Activity Books.
How many pages will my book be at 8.5 x 8.5 in?
| Manuscript | 10 pt | 11 pt | 12 pt |
|---|---|---|---|
| 40,000 words | 88 pp | 104 pp | 118 pp |
| 60,000 words | 126 pp | 152 pp | 174 pp |
| 80,000 words | 168 pp | 200 pp | 228 pp |
| 100,000 words | 206 pp | 246 pp | 280 pp |
| 120,000 words | 244 pp | 292 pp | 340 pp |
Estimates for a typical serif body font with 130% leading, chapter openings and front/back matter. Dialogue-heavy fiction runs longer; dense nonfiction shorter.
Spine width and cover size for 8.5 x 8.5 in
| Page count | Spine (white paper) | Spine (cream paper) | Full cover incl. bleed |
|---|---|---|---|
| 100 pages | 0.2252 in / 5.72 mm | 0.25 in / 6.35 mm | 17.475 x 8.75 in |
| 200 pages | 0.4504 in / 11.44 mm | 0.5 in / 12.7 mm | 17.7 x 8.75 in |
| 300 pages | 0.6756 in / 17.16 mm | 0.75 in / 19.05 mm | 17.926 x 8.75 in |
| 400 pages | 0.9008 in / 22.88 mm | 1 in / 25.4 mm | 18.151 x 8.75 in |
| 500 pages | 1.126 in / 28.6 mm | 1.25 in / 31.75 mm | 18.376 x 8.75 in |
Spine factors: 0.002252 in/page white, 0.0025 in/page cream (KDP published values). Other printers vary — use their template.
Margins by page count
| Pages | Min. inside (KDP) | Recommended inside | Outside | Top / bottom | Text block |
|---|---|---|---|---|---|
| 24–150 pages | 0.375 in | 0.625 in | 0.75 in | 0.625 / 0.625 in | 7.13 x 7.25 in |
| 151–300 pages | 0.5 in | 0.75 in | 0.75 in | 0.625 / 0.625 in | 7 x 7.25 in |
| 301–500 pages | 0.625 in | 0.875 in | 0.75 in | 0.625 / 0.625 in | 6.88 x 7.25 in |
| 501–700 pages | 0.75 in | 1 in | 0.75 in | 0.625 / 0.625 in | 6.75 x 7.25 in |
| 701–828 pages | 0.875 in | 1.125 in | 0.75 in | 0.625 / 0.625 in | 6.63 x 7.25 in |
Minimum inside margins are KDP's published values; recommended margins are our comfortable defaults for reading.
Two-page spread
Interior PDF page size
| Setup | Page size (in) | Page size (mm) | Full-page image at 300 ppi |
|---|---|---|---|
| No bleed (text only) | 8.5 x 8.5 | 215.9 x 215.9 | 2,550 x 2,550 px |
| With bleed | 8.625 x 8.75 | 219.1 x 222.3 | 2,588 x 2,625 px |
With bleed, add 0.125 in to the width (outside edge only) and 0.25 in to the height (top and bottom).
Tip: at 8.5 x 8.5 in, a novel of 80,000 words comes to roughly 200 pages at 11 pt. Try different settings in the word count calculator or build a cover with the spine width calculator.
Spine width by page count
- 24 pages
- 32 pages
- 40 pages
- 48 pages
- 56 pages
- 64 pages
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- 740 pages
- 760 pages
- 780 pages
- 800 pages
- 828 pages