Book thickness
How thick is a 150-page book?
A 150-page paperback is about 0.338 in (8.6 mm) thick on white paper and 0.375 in on cream — 75 sheets of paper.
0.338 inwhite paper8.6 mm
0.375 incream paper
75sheets (leaves)
Spine width by paper
| Paper | Inches | Millimetres | Centimetres |
|---|---|---|---|
| White paper, black ink | 0.3378 in | 8.58 mm | 0.86 cm |
| Cream paper, black ink | 0.375 in | 9.53 mm | 0.95 cm |
| Standard color (white) | 0.3378 in | 8.58 mm | 0.86 cm |
| Premium color (white) | 0.3521 in | 8.94 mm | 0.89 cm |
Full cover size by trim
| Trim | Full cover incl. bleed (white) | Weight |
|---|---|---|
| 5 x 8 in | 10.588 x 8.25 in | 159 g |
| 5.06 x 7.81 in | 10.708 x 8.06 in | 157 g |
| 5.25 x 8 in | 11.088 x 8.25 in | 166 g |
| 5.5 x 8.5 in | 11.588 x 8.75 in | 185 g |
| 6 x 9 in | 12.588 x 9.25 in | 214 g |
| 6.14 x 9.21 in | 12.868 x 9.46 in | 224 g |
| 6.69 x 9.61 in | 13.968 x 9.86 in | 255 g |
| 7 x 10 in | 14.588 x 10.25 in | 277 g |
| 7.5 x 9.25 in | 15.588 x 9.5 in | 275 g |
| 8 x 10 in | 16.588 x 10.25 in | 317 g |
| 8.5 x 8.5 in | 17.588 x 8.75 in | 286 g |
| 8.5 x 11 in | 17.588 x 11.25 in | 370 g |
Offset papers by PPI
| PPI | Typical stock | Spine | Spine (mm) |
|---|---|---|---|
| 350 PPI | Bulky / heavy stock (~70 lb text) | 0.429 in | 10.9 mm |
| 400 PPI | Cream book paper (~55 lb) | 0.375 in | 9.5 mm |
| 444 PPI | White book paper (~50 lb) | 0.338 in | 8.6 mm |
| 500 PPI | Lightweight text (~45 lb) | 0.3 in | 7.6 mm |
| 600 PPI | Thin text (~40 lb) | 0.25 in | 6.4 mm |
Other page counts
Frequently asked questions
How thick is a 150-page book?
A 150-page paperback is about 0.338 in (8.6 mm) thick on white paper and 0.375 in on cream — 75 sheets of paper.
How many sheets of paper are in a 150-page book?
75 leaves — each sheet carries two pages, one on each side.
Can a 150-page book have text on the spine?
Yes.