Book thickness

How thick is a 390-page book?

A 390-page paperback is about 0.878 in (22.3 mm) thick on white paper and 0.975 in on cream — 195 sheets of paper.

0.878 inwhite paper22.3 mm
0.975 incream paper
195sheets (leaves)

Spine width by paper

PaperInchesMillimetresCentimetres
White paper, black ink0.8783 in22.31 mm2.23 cm
Cream paper, black ink0.975 in24.77 mm2.48 cm
Standard color (white)0.8783 in22.31 mm2.23 cm
Premium color (white)0.9153 in23.25 mm2.32 cm

Full cover size by trim

TrimFull cover incl. bleed (white)Weight
5 x 8 in11.128 x 8.25 in391 g
5.06 x 7.81 in11.248 x 8.06 in387 g
5.25 x 8 in11.628 x 8.25 in411 g
5.5 x 8.5 in12.128 x 8.75 in457 g
6 x 9 in13.128 x 9.25 in528 g
6.14 x 9.21 in13.408 x 9.46 in553 g
6.69 x 9.61 in14.508 x 9.86 in629 g
7 x 10 in15.128 x 10.25 in684 g
7.5 x 9.25 in16.128 x 9.5 in678 g
8 x 10 in17.128 x 10.25 in782 g
8.5 x 8.5 in18.128 x 8.75 in706 g
8.5 x 11 in18.128 x 11.25 in914 g

Offset papers by PPI

PPITypical stockSpineSpine (mm)
350 PPIBulky / heavy stock (~70 lb text)1.114 in28.3 mm
400 PPICream book paper (~55 lb)0.975 in24.8 mm
444 PPIWhite book paper (~50 lb)0.878 in22.3 mm
500 PPILightweight text (~45 lb)0.78 in19.8 mm
600 PPIThin text (~40 lb)0.65 in16.5 mm

Other page counts

Frequently asked questions

How thick is a 390-page book?
A 390-page paperback is about 0.878 in (22.3 mm) thick on white paper and 0.975 in on cream — 195 sheets of paper.
How many sheets of paper are in a 390-page book?
195 leaves — each sheet carries two pages, one on each side.
Can a 390-page book have text on the spine?
Yes.