Book thickness

How thick is a 370-page book?

A 370-page paperback is about 0.833 in (21.2 mm) thick on white paper and 0.925 in on cream — 185 sheets of paper.

0.833 inwhite paper21.2 mm
0.925 incream paper
185sheets (leaves)

Spine width by paper

PaperInchesMillimetresCentimetres
White paper, black ink0.8332 in21.16 mm2.12 cm
Cream paper, black ink0.925 in23.5 mm2.35 cm
Standard color (white)0.8332 in21.16 mm2.12 cm
Premium color (white)0.8684 in22.06 mm2.21 cm

Full cover size by trim

TrimFull cover incl. bleed (white)Weight
5 x 8 in11.083 x 8.25 in372 g
5.06 x 7.81 in11.203 x 8.06 in368 g
5.25 x 8 in11.583 x 8.25 in391 g
5.5 x 8.5 in12.083 x 8.75 in435 g
6 x 9 in13.083 x 9.25 in502 g
6.14 x 9.21 in13.363 x 9.46 in526 g
6.69 x 9.61 in14.463 x 9.86 in598 g
7 x 10 in15.083 x 10.25 in651 g
7.5 x 9.25 in16.083 x 9.5 in645 g
8 x 10 in17.083 x 10.25 in743 g
8.5 x 8.5 in18.083 x 8.75 in671 g
8.5 x 11 in18.083 x 11.25 in869 g

Offset papers by PPI

PPITypical stockSpineSpine (mm)
350 PPIBulky / heavy stock (~70 lb text)1.057 in26.9 mm
400 PPICream book paper (~55 lb)0.925 in23.5 mm
444 PPIWhite book paper (~50 lb)0.833 in21.2 mm
500 PPILightweight text (~45 lb)0.74 in18.8 mm
600 PPIThin text (~40 lb)0.617 in15.7 mm

Other page counts

Frequently asked questions

How thick is a 370-page book?
A 370-page paperback is about 0.833 in (21.2 mm) thick on white paper and 0.925 in on cream — 185 sheets of paper.
How many sheets of paper are in a 370-page book?
185 leaves — each sheet carries two pages, one on each side.
Can a 370-page book have text on the spine?
Yes.