Book thickness
How thick is a 420-page book?
A 420-page paperback is about 0.946 in (24 mm) thick on white paper and 1.05 in on cream — 210 sheets of paper.
0.946 inwhite paper24 mm
1.05 incream paper
210sheets (leaves)
Spine width by paper
| Paper | Inches | Millimetres | Centimetres |
|---|---|---|---|
| White paper, black ink | 0.9458 in | 24.02 mm | 2.4 cm |
| Cream paper, black ink | 1.05 in | 26.67 mm | 2.67 cm |
| Standard color (white) | 0.9458 in | 24.02 mm | 2.4 cm |
| Premium color (white) | 0.9857 in | 25.04 mm | 2.5 cm |
Full cover size by trim
| Trim | Full cover incl. bleed (white) | Weight |
|---|---|---|
| 5 x 8 in | 11.196 x 8.25 in | 421 g |
| 5.06 x 7.81 in | 11.316 x 8.06 in | 415 g |
| 5.25 x 8 in | 11.696 x 8.25 in | 442 g |
| 5.5 x 8.5 in | 12.196 x 8.75 in | 491 g |
| 6 x 9 in | 13.196 x 9.25 in | 568 g |
| 6.14 x 9.21 in | 13.476 x 9.46 in | 594 g |
| 6.69 x 9.61 in | 14.576 x 9.86 in | 675 g |
| 7 x 10 in | 15.196 x 10.25 in | 735 g |
| 7.5 x 9.25 in | 16.196 x 9.5 in | 729 g |
| 8 x 10 in | 17.196 x 10.25 in | 840 g |
| 8.5 x 8.5 in | 18.196 x 8.75 in | 759 g |
| 8.5 x 11 in | 18.196 x 11.25 in | 982 g |
Offset papers by PPI
| PPI | Typical stock | Spine | Spine (mm) |
|---|---|---|---|
| 350 PPI | Bulky / heavy stock (~70 lb text) | 1.2 in | 30.5 mm |
| 400 PPI | Cream book paper (~55 lb) | 1.05 in | 26.7 mm |
| 444 PPI | White book paper (~50 lb) | 0.946 in | 24 mm |
| 500 PPI | Lightweight text (~45 lb) | 0.84 in | 21.3 mm |
| 600 PPI | Thin text (~40 lb) | 0.7 in | 17.8 mm |
Other page counts
Frequently asked questions
How thick is a 420-page book?
A 420-page paperback is about 0.946 in (24 mm) thick on white paper and 1.05 in on cream — 210 sheets of paper.
How many sheets of paper are in a 420-page book?
210 leaves — each sheet carries two pages, one on each side.
Can a 420-page book have text on the spine?
Yes.