Book thickness
How thick is a 180-page book?
A 180-page paperback is about 0.405 in (10.3 mm) thick on white paper and 0.45 in on cream — 90 sheets of paper.
0.405 inwhite paper10.3 mm
0.45 incream paper
90sheets (leaves)
Spine width by paper
| Paper | Inches | Millimetres | Centimetres |
|---|---|---|---|
| White paper, black ink | 0.4054 in | 10.3 mm | 1.03 cm |
| Cream paper, black ink | 0.45 in | 11.43 mm | 1.14 cm |
| Standard color (white) | 0.4054 in | 10.3 mm | 1.03 cm |
| Premium color (white) | 0.4225 in | 10.73 mm | 1.07 cm |
Full cover size by trim
| Trim | Full cover incl. bleed (white) | Weight |
|---|---|---|
| 5 x 8 in | 10.655 x 8.25 in | 188 g |
| 5.06 x 7.81 in | 10.775 x 8.06 in | 185 g |
| 5.25 x 8 in | 11.155 x 8.25 in | 197 g |
| 5.5 x 8.5 in | 11.655 x 8.75 in | 219 g |
| 6 x 9 in | 12.655 x 9.25 in | 253 g |
| 6.14 x 9.21 in | 12.935 x 9.46 in | 265 g |
| 6.69 x 9.61 in | 14.035 x 9.86 in | 301 g |
| 7 x 10 in | 14.655 x 10.25 in | 328 g |
| 7.5 x 9.25 in | 15.655 x 9.5 in | 325 g |
| 8 x 10 in | 16.655 x 10.25 in | 375 g |
| 8.5 x 8.5 in | 17.655 x 8.75 in | 338 g |
| 8.5 x 11 in | 17.655 x 11.25 in | 438 g |
Offset papers by PPI
| PPI | Typical stock | Spine | Spine (mm) |
|---|---|---|---|
| 350 PPI | Bulky / heavy stock (~70 lb text) | 0.514 in | 13.1 mm |
| 400 PPI | Cream book paper (~55 lb) | 0.45 in | 11.4 mm |
| 444 PPI | White book paper (~50 lb) | 0.405 in | 10.3 mm |
| 500 PPI | Lightweight text (~45 lb) | 0.36 in | 9.1 mm |
| 600 PPI | Thin text (~40 lb) | 0.3 in | 7.6 mm |
Other page counts
Frequently asked questions
How thick is a 180-page book?
A 180-page paperback is about 0.405 in (10.3 mm) thick on white paper and 0.45 in on cream — 90 sheets of paper.
How many sheets of paper are in a 180-page book?
90 leaves — each sheet carries two pages, one on each side.
Can a 180-page book have text on the spine?
Yes.