Amazon KDP Cover Calculator
Enter your book details to get cover dimensions including spine width.
Cover Dimensions
Bleed Margin: 0.125 in (all sides)
PDF Dimensions (with bleed): x in
Formula: Spine width = (pages × paper thickness in inches) / 2. For cream: 0.0025 in/page; for white: 0.0022 in/page. Total width = 2×trimWidth + spineWidth + 2×bleed (0.125 in each side). Total height = trimHeight + 2×bleed.