Amazon’s Book Cover Spine Width Calculator

Here’s a link to Amazon’s Book Cover Spine Width Calculator.

Spine measurements for black & white books with white paper. For cream paper or color books visit the link below.

• Multiply your final page count by: 0.002252″ (0.0572 mm)
• Here’s the link: https://kdp.amazon.com/en_US/help/topic/G201857950#coverformat

Spine measurements for black and white books

• White paper: page count x 0.002252″ (0.0572 mm)
• Cream paper: page count x 0.0025″ (0.0635 mm)

Spine measurements for color books

• Color paper: page count x 0.002347″ (0.0596 mm)