Spine Width Calculator

Calculate book spine width from page count and paper stock weight with common paper thickness reference

Total Page Count

Must be even (front + back of each sheet)

Paper Stock

Pages Per Inch (PPI)

Cover Type

Quick Reference

Spine Text Guidelines

Minimum for spine text: 0.25" (6mm) Under 0.5": Use small font (6-8pt) 0.5" - 1.0": Standard font (8-10pt) Over 1.0": Comfortable (10-14pt) Under 0.125": No spine text possible Always leave 0.0625" margin on each side

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