Math & Calculators

Amazon KDP Book Cover & Spine Dimension Calculator

Self-Publisher Goldmine 100% In-Browser Private

Calculate exact KDP spine thickness and full cover PDF dimensions to prevent Amazon publishing rejection.

Interior Page Count

Paper Color / Type

Trim Size

Spine Width0.3378"(8.58 mm)

Full Cover Width (with bleed)12.588"Back + Spine + Front + 0.25" Bleed

Full Cover Height (with bleed)9.250"Height + 0.25" Bleed

Back Cover
6" × 9"

Spine
0.338"

Front Cover
6" × 9"

Create your Canva or Photoshop canvas at 12.588" × 9.250" at 300 DPI (3776 × 2775 px).

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Amazon KDP Book Cover & Spine Dimension Calculator