Spine Calculator

Book Formatting Tool

Pick the stocks, enter the page count, and get the perfect-bound spine and cover size.

Binding type

Paper stock

Page count

2 pages = 1 sheet. The calculator halves the page count automatically.

Cover stock

Cover stocks are shown first. Open Text-weight cover options only when the cover is actually printed on text-weight paper.

Custom cover thickness

Enter thickness in in.

Trim size

Trim width (in)

Trim height (in)

Bleed (in)

Board thickness

Enter caliper points. 20 pt = 0.020 in.

Board overhang (in)

Hinge gap (in)

Wrap / turn-in (in)

Artwork must extend through this wrap area.

Safe margin (in)

Spine fraction—

Spine decimal—

Full cover width—

Full cover height—

Board size—

Spine board—