Book thickness

How thick is a 280-page book?

A 280-page paperback is about 0.631 in (16 mm) thick on white paper and 0.7 in on cream — 140 sheets of paper.

0.631 inwhite paper16 mm
0.7 incream paper
140sheets (leaves)

Spine width by paper

PaperInchesMillimetresCentimetres
White paper, black ink0.6306 in16.02 mm1.6 cm
Cream paper, black ink0.7 in17.78 mm1.78 cm
Standard color (white)0.6306 in16.02 mm1.6 cm
Premium color (white)0.6572 in16.69 mm1.67 cm

Full cover size by trim

TrimFull cover incl. bleed (white)Weight
5 x 8 in10.881 x 8.25 in285 g
5.06 x 7.81 in11.001 x 8.06 in281 g
5.25 x 8 in11.381 x 8.25 in299 g
5.5 x 8.5 in11.881 x 8.75 in333 g
6 x 9 in12.881 x 9.25 in384 g
6.14 x 9.21 in13.161 x 9.46 in402 g
6.69 x 9.61 in14.261 x 9.86 in457 g
7 x 10 in14.881 x 10.25 in498 g
7.5 x 9.25 in15.881 x 9.5 in493 g
8 x 10 in16.881 x 10.25 in569 g
8.5 x 8.5 in17.881 x 8.75 in514 g
8.5 x 11 in17.881 x 11.25 in665 g

Offset papers by PPI

PPITypical stockSpineSpine (mm)
350 PPIBulky / heavy stock (~70 lb text)0.8 in20.3 mm
400 PPICream book paper (~55 lb)0.7 in17.8 mm
444 PPIWhite book paper (~50 lb)0.631 in16 mm
500 PPILightweight text (~45 lb)0.56 in14.2 mm
600 PPIThin text (~40 lb)0.467 in11.9 mm

Other page counts

Frequently asked questions

How thick is a 280-page book?
A 280-page paperback is about 0.631 in (16 mm) thick on white paper and 0.7 in on cream — 140 sheets of paper.
How many sheets of paper are in a 280-page book?
140 leaves — each sheet carries two pages, one on each side.
Can a 280-page book have text on the spine?
Yes.