Resolution, Spine & DPI Print Calculator

Inches & mm ➔ Pixels Calculator
300 DPI, KDP Bleed & Spine

Instantly calculate exact Canva custom pixel dimensions, 0.125" (3.2mm) print bleed sizes, and full-wrap paperback cover spine widths at 300 DPI.

Book Trim Size

Interior Page Count

Target Resolution (DPI)

Interior Page with 0.125" Bleed (Inches / mm)

6.125" × 9.25"

155.6 × 235.0 mm

Required Canva Custom Size (Pixels)

1838 × 2775 px

Exact 300 DPI Print Resolution

Full-Wrap Cover Dimensions (Front + Spine + Back)

12.520" × 9.25"

3756 × 2775 px at 300 DPI

Exact Spine Width & Required Inner Gutter

0.270" Spine

Recommended Spine Gutter: 0.375"

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