Book Formatting Cost UK: What Authors Actually Pay in 2026
What does book formatting cost in the UK? DIY tools £0–£200, freelancers £40–£400, services from £69. A transparent 2026 breakdown for self-publishers.
The library
Kdp Formatting
Expert articles on KDP formatting, self-publishing, and book design for UK authors. 149 guides and counting.
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Interactive Tools & Calculators
8 free toolsCommon KDP Rejection Reasons and Fixes — Interactive Troubleshooting Tool
Interactive troubleshooting tool for Amazon KDP rejections. Select your rejection reason and get step-by-step fix instructions. Covers the top 15 rejection reasons.
Use tool →KDP Cover Formatting Guide — Interactive Cover Template Calculator
Interactive KDP cover template calculator. Enter trim size, page count, and paper type to get exact cover dimensions with spine width, bleed, and safe zones. Includes visual diagram.
Use tool →KDP Formatting Checklist — Interactive Pre-Upload Checklist
Interactive KDP formatting checklist you can tick off as you go. Covers interior formatting, cover setup, metadata, and upload steps. Download as PDF when complete.
Use tool →KDP Margin Calculator — Get Exact Gutter Margins for Your Page Count
Calculate the exact gutter and outside margins required for your Amazon KDP paperback based on page count and trim size. Uses Amazon's official margin table.
Use tool →KDP Spine Width Calculator — Calculate Exact Spine Measurement
Calculate the exact spine width for your KDP paperback. Enter page count and paper type to get precise spine measurements for your book cover design.
Use tool →KDP Trim Size Guide — Find the Perfect Size for Your Book
Interactive guide to all Amazon KDP trim sizes. Find which trim size suits your genre with UK-specific examples, bleed options, and a filterable comparison table.
Use tool →White Paper vs Cream Paper for KDP — Visual Comparison Tool
Interactive visual comparison of white and cream paper for Amazon KDP paperbacks. See how text looks on each, compare costs, and find which suits your genre.
Use tool →Word to KDP: Step-by-Step Formatting Guide
Comprehensive interactive guide to formatting a Microsoft Word document for Amazon KDP paperback upload. Covers margins, fonts, headers, page breaks, TOC, and export.
Use tool →KDP Formatting
143 articlesChildren's Book Formatting Service: Who Can Format My Picture Book for KDP?
Picture books are the hardest format to get right on KDP. Why a children's book formatting service is worth it here — and what to check before you pay.
Hardcover vs Paperback Self-Publishing: Cost, Royalty & Which to Pick
Hardcover vs paperback self publishing: real KDP print costs, royalties and which format to choose. Honest 2026 UK cost-and-earnings breakdown.
Is Fiverr Any Good for Book Formatting? An Honest Review
Is Fiverr good for book formatting? What commonly goes wrong, a checklist to vet sellers before you buy, and when a fixed-scope UK service is safer.
Reedsy Formatting Cost: What Formatters Charge (And a Cheaper Option)
Reedsy formatting cost explained: what marketplace formatters really charge, plus a cheaper done-for-you UK option from £69.
KDP error: Barcode / ISBN placement on the cover
Why KDP flags your cover for the barcode area — and exactly where the ISBN barcode goes. UK-specific, 2026 spec.
KDP error: PDF won't upload or convert correctly
Why your interior or cover PDF fails to upload or convert on KDP — embedded fonts, bleed mismatch, file size, security settings — and the exact fix. UK-specific, 2026 spec.
KDP page-count rules: minimum, maximum, and even pages
KDP's minimum and maximum page counts for paperback and hardcover — by ink and paper type — plus whether you need an even page count. UK-specific, 2026 spec.
Spine width for a 100-page 5.06×7.81 inch KDP paperback
Exact spine width for a 100-page 5.06×7.81 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 5.25×8 inch KDP paperback
Exact spine width for a 100-page 5.25×8 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 5.5×8.5 inch KDP paperback
Exact spine width for a 100-page 5.5×8.5 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 5×8 inch KDP paperback
Exact spine width for a 100-page 5×8 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 6.14×9.21 inch KDP paperback
Exact spine width for a 100-page 6.14×9.21 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 6.69×9.61 inch KDP paperback
Exact spine width for a 100-page 6.69×9.61 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 6×9 inch KDP paperback
Exact spine width for a 100-page 6×9 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 7.5×9.25 inch KDP paperback
Exact spine width for a 100-page 7.5×9.25 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 7×10 inch KDP paperback
Exact spine width for a 100-page 7×10 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 8.5×11 inch KDP paperback
Exact spine width for a 100-page 8.5×11 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 8.5×8.5 inch KDP paperback
Exact spine width for a 100-page 8.5×8.5 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 8×10 inch KDP paperback
Exact spine width for a 100-page 8×10 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 5.06×7.81 inch KDP paperback
Exact spine width for a 150-page 5.06×7.81 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 5.25×8 inch KDP paperback
Exact spine width for a 150-page 5.25×8 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 5.5×8.5 inch KDP paperback
Exact spine width for a 150-page 5.5×8.5 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 5×8 inch KDP paperback
Exact spine width for a 150-page 5×8 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 6.14×9.21 inch KDP paperback
Exact spine width for a 150-page 6.14×9.21 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 6.69×9.61 inch KDP paperback
Exact spine width for a 150-page 6.69×9.61 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 6×9 inch KDP paperback
Exact spine width for a 150-page 6×9 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 7.5×9.25 inch KDP paperback
Exact spine width for a 150-page 7.5×9.25 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 7×10 inch KDP paperback
Exact spine width for a 150-page 7×10 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 8.5×11 inch KDP paperback
Exact spine width for a 150-page 8.5×11 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 8.5×8.5 inch KDP paperback
Exact spine width for a 150-page 8.5×8.5 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 8×10 inch KDP paperback
Exact spine width for a 150-page 8×10 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 5.06×7.81 inch KDP paperback
Exact spine width for a 200-page 5.06×7.81 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 5.25×8 inch KDP paperback
Exact spine width for a 200-page 5.25×8 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 5.5×8.5 inch KDP paperback
Exact spine width for a 200-page 5.5×8.5 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 5×8 inch KDP paperback
Exact spine width for a 200-page 5×8 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 6.14×9.21 inch KDP paperback
Exact spine width for a 200-page 6.14×9.21 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 6.69×9.61 inch KDP paperback
Exact spine width for a 200-page 6.69×9.61 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 6×9 inch KDP paperback
Exact spine width for a 200-page 6×9 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 7.5×9.25 inch KDP paperback
Exact spine width for a 200-page 7.5×9.25 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 7×10 inch KDP paperback
Exact spine width for a 200-page 7×10 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 8.5×11 inch KDP paperback
Exact spine width for a 200-page 8.5×11 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 8.5×8.5 inch KDP paperback
Exact spine width for a 200-page 8.5×8.5 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 8×10 inch KDP paperback
Exact spine width for a 200-page 8×10 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 5.06×7.81 inch KDP paperback
Exact spine width for a 250-page 5.06×7.81 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 5.25×8 inch KDP paperback
Exact spine width for a 250-page 5.25×8 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 5.5×8.5 inch KDP paperback
Exact spine width for a 250-page 5.5×8.5 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 5×8 inch KDP paperback
Exact spine width for a 250-page 5×8 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 6.14×9.21 inch KDP paperback
Exact spine width for a 250-page 6.14×9.21 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 6.69×9.61 inch KDP paperback
Exact spine width for a 250-page 6.69×9.61 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 6×9 inch KDP paperback
Exact spine width for a 250-page 6×9 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 7.5×9.25 inch KDP paperback
Exact spine width for a 250-page 7.5×9.25 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 7×10 inch KDP paperback
Exact spine width for a 250-page 7×10 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 8.5×11 inch KDP paperback
Exact spine width for a 250-page 8.5×11 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 8.5×8.5 inch KDP paperback
Exact spine width for a 250-page 8.5×8.5 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 8×10 inch KDP paperback
Exact spine width for a 250-page 8×10 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 5.06×7.81 inch KDP paperback
Exact spine width for a 300-page 5.06×7.81 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 5.25×8 inch KDP paperback
Exact spine width for a 300-page 5.25×8 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 5.5×8.5 inch KDP paperback
Exact spine width for a 300-page 5.5×8.5 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 5×8 inch KDP paperback
Exact spine width for a 300-page 5×8 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 6.14×9.21 inch KDP paperback
Exact spine width for a 300-page 6.14×9.21 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 6.69×9.61 inch KDP paperback
Exact spine width for a 300-page 6.69×9.61 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 6×9 inch KDP paperback
Exact spine width for a 300-page 6×9 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 7.5×9.25 inch KDP paperback
Exact spine width for a 300-page 7.5×9.25 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 7×10 inch KDP paperback
Exact spine width for a 300-page 7×10 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 8.5×11 inch KDP paperback
Exact spine width for a 300-page 8.5×11 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 8.5×8.5 inch KDP paperback
Exact spine width for a 300-page 8.5×8.5 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 8×10 inch KDP paperback
Exact spine width for a 300-page 8×10 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 5.06×7.81 inch KDP paperback
Exact spine width for a 400-page 5.06×7.81 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 5.25×8 inch KDP paperback
Exact spine width for a 400-page 5.25×8 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 5.5×8.5 inch KDP paperback
Exact spine width for a 400-page 5.5×8.5 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 5×8 inch KDP paperback
Exact spine width for a 400-page 5×8 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 6.14×9.21 inch KDP paperback
Exact spine width for a 400-page 6.14×9.21 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 6.69×9.61 inch KDP paperback
Exact spine width for a 400-page 6.69×9.61 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 6×9 inch KDP paperback
Exact spine width for a 400-page 6×9 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 7.5×9.25 inch KDP paperback
Exact spine width for a 400-page 7.5×9.25 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 7×10 inch KDP paperback
Exact spine width for a 400-page 7×10 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 8.5×11 inch KDP paperback
Exact spine width for a 400-page 8.5×11 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 8.5×8.5 inch KDP paperback
Exact spine width for a 400-page 8.5×8.5 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 8×10 inch KDP paperback
Exact spine width for a 400-page 8×10 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 5.06×7.81 inch KDP paperback
Exact spine width for a 50-page 5.06×7.81 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 5.25×8 inch KDP paperback
Exact spine width for a 50-page 5.25×8 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 5.5×8.5 inch KDP paperback
Exact spine width for a 50-page 5.5×8.5 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 5×8 inch KDP paperback
Exact spine width for a 50-page 5×8 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 6.14×9.21 inch KDP paperback
Exact spine width for a 50-page 6.14×9.21 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 6.69×9.61 inch KDP paperback
Exact spine width for a 50-page 6.69×9.61 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 6×9 inch KDP paperback
Exact spine width for a 50-page 6×9 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 7.5×9.25 inch KDP paperback
Exact spine width for a 50-page 7.5×9.25 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 7×10 inch KDP paperback
Exact spine width for a 50-page 7×10 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 8.5×11 inch KDP paperback
Exact spine width for a 50-page 8.5×11 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 8.5×8.5 inch KDP paperback
Exact spine width for a 50-page 8.5×8.5 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 8×10 inch KDP paperback
Exact spine width for a 50-page 8×10 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 5.06×7.81 inch KDP paperback
Exact spine width for a 500-page 5.06×7.81 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 5.25×8 inch KDP paperback
Exact spine width for a 500-page 5.25×8 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 5.5×8.5 inch KDP paperback
Exact spine width for a 500-page 5.5×8.5 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 5×8 inch KDP paperback
Exact spine width for a 500-page 5×8 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 6.14×9.21 inch KDP paperback
Exact spine width for a 500-page 6.14×9.21 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 6.69×9.61 inch KDP paperback
Exact spine width for a 500-page 6.69×9.61 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 6×9 inch KDP paperback
Exact spine width for a 500-page 6×9 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 7.5×9.25 inch KDP paperback
Exact spine width for a 500-page 7.5×9.25 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 7×10 inch KDP paperback
Exact spine width for a 500-page 7×10 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 8.5×11 inch KDP paperback
Exact spine width for a 500-page 8.5×11 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 8.5×8.5 inch KDP paperback
Exact spine width for a 500-page 8.5×8.5 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 8×10 inch KDP paperback
Exact spine width for a 500-page 8×10 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Biography KDP Formatting: UK Author's Guide
How to format a biography book for Amazon KDP — trim, paper, fonts, page-count band, spine width, and the biography-specific pitfall every author should plan for.
Business Book KDP Formatting: UK Author's Guide
How to format a business book for Amazon KDP — trim, paper, fonts, page-count band, spine width, and the business-specific pitfall every author should plan for.
Children's Chapter Book KDP Formatting: UK Author's Guide
How to format a children's chapter book book for Amazon KDP — trim, paper, fonts, page-count band, spine width, and the children's chapter book-specific pitfall every author should plan for.
Cookbook KDP Formatting: UK Author's Guide
How to format a cookbook book for Amazon KDP — trim, paper, fonts, page-count band, spine width, and the cookbook-specific pitfall every author should plan for.
Fantasy Novel KDP Formatting: UK Author's Guide
How to format a fantasy book for Amazon KDP — trim, paper, fonts, page-count band, spine width, and the fantasy-specific pitfall every author should plan for.
Memoir KDP Formatting: UK Author's Guide
How to format a memoir book for Amazon KDP — trim, paper, fonts, page-count band, spine width, and the memoir-specific pitfall every author should plan for.
Picture Book KDP Formatting: UK Author's Guide
How to format a picture book book for Amazon KDP — trim, paper, fonts, page-count band, spine width, and the picture book-specific pitfall every author should plan for.
Poetry Collection KDP Formatting: UK Author's Guide
How to format a poetry book for Amazon KDP — trim, paper, fonts, page-count band, spine width, and the poetry-specific pitfall every author should plan for.
Romance Novel KDP Formatting: UK Author's Guide
How to format a romance book for Amazon KDP — trim, paper, fonts, page-count band, spine width, and the romance-specific pitfall every author should plan for.
Sci-Fi Novel KDP Formatting: UK Author's Guide
How to format a science fiction book for Amazon KDP — trim, paper, fonts, page-count band, spine width, and the science fiction-specific pitfall every author should plan for.
Self-Help Book KDP Formatting: UK Author's Guide
How to format a self-help book for Amazon KDP — trim, paper, fonts, page-count band, spine width, and the self-help-specific pitfall every author should plan for.
Thriller Novel KDP Formatting: UK Author's Guide
How to format a thriller book for Amazon KDP — trim, paper, fonts, page-count band, spine width, and the thriller-specific pitfall every author should plan for.
KDP error: AI-generated content not disclosed
Why KDP rejected your book for failing to disclose AI-generated content — and the exact fix. UK-specific, 2026 spec.
KDP error: Blank chapter detected
Why KDP rejected your book for a blank chapter — and the exact fix. UK-specific, 2026 spec.
KDP error: Bleed misconfigured for your trim size
Why KDP rejected your book for incorrect bleed — and the exact fix. UK-specific, 2026 spec.
KDP error: Cover dimensions don't match interior trim
Why KDP rejected your book for cover-interior trim mismatch — and the exact fix. UK-specific, 2026 spec.
KDP error: Cover text or critical elements in bleed zone
Why KDP rejected your cover for text in the bleed zone — and the exact fix. UK-specific, 2026 spec.
KDP error: Cover under 2560×1600 pixels
Why KDP rejected your ebook cover for being too small — and the exact fix. UK-specific, 2026 spec.
KDP error: Crop marks present in print PDF
Why KDP rejected your PDF for crop marks — and the exact fix. UK-specific, 2026 spec.
KDP error: Embedded image too large
Why KDP rejected your file for an oversized embedded image — and the exact fix. UK-specific, 2026 spec.
KDP error: EPUB doesn't pass EPUBCheck validation
Why KDP rejected your Kindle file for EPUB validation errors — and the exact fix. UK-specific, 2026 spec.
KDP error: Fewer than 24 pages (paperback minimum)
Why KDP rejected your paperback for being too short — and the exact fix. UK-specific, 2026 spec.
KDP error: File size over 650MB
Why KDP rejected your upload for exceeding the file size limit — and the exact fix. UK-specific, 2026 spec.
KDP error: Fixed-layout metadata missing for picture book
Why KDP rejected your picture book or comic for missing fixed-layout flags — and the exact fix. UK-specific, 2026 spec.
KDP error: Font not embedded in PDF
Why KDP rejected your PDF for non-embedded fonts — and the exact fix. UK-specific, 2026 spec.
KDP error: Image resolution below 300 DPI
Why KDP rejected your book for low-resolution images — and the exact fix. UK-specific, 2026 spec.
KDP error: ISBN on copyright page doesn't match metadata
Why KDP rejected your book for an ISBN mismatch — and the exact fix. UK-specific, 2026 spec.
KDP error: Lorem ipsum or placeholder text detected
Why KDP rejected your book for placeholder text — and the exact fix. UK-specific, 2026 spec.
KDP error: Margin too small (gutter or outside)
Why KDP rejected your book for a margin violation — and the exact fix. UK-specific, 2026 spec.
KDP error: More than 828 pages (paperback maximum)
Why KDP rejected your paperback for exceeding the page limit — and the exact fix. UK-specific, 2026 spec.
KDP error: Odd page count in print interior
Why KDP rejected your paperback for an odd page count — and the exact fix. UK-specific, 2026 spec.
KDP error: PDF transparency layers not flattened
Why KDP rejected your PDF for unflattened transparency — and the exact fix. UK-specific, 2026 spec.
KDP error: RGB images in print interior (CMYK required)
Why KDP rejected your print PDF for mixed colour spaces — and the exact fix. UK-specific, 2026 spec.
KDP error: Right-to-left language flag missing in OPF
Why KDP rejected your Arabic, Hebrew or Persian book for missing RTL flags — and the exact fix. UK-specific, 2026 spec.
KDP error: Spine too narrow for spine text
Why KDP rejected your cover for spine text on a too-thin book — and the exact fix. UK-specific, 2026 spec.
KDP error: Table of Contents links don't resolve
Why KDP rejected your ebook for a broken Table of Contents — and the exact fix. UK-specific, 2026 spec.
KDP error: Title on cover doesn't match dashboard metadata
Why KDP rejected your book for a title mismatch between cover and dashboard — and the exact fix. UK-specific, 2026 spec.
Common KDP Rejection Reasons and Fixes — Interactive Troubleshooting Tool
Interactive troubleshooting tool for Amazon KDP rejections. Select your rejection reason and get step-by-step fix instructions. Covers the top 15 rejection reasons.
Word to KDP: Step-by-Step Formatting Guide
Comprehensive interactive guide to formatting a Microsoft Word document for Amazon KDP paperback upload. Covers margins, fonts, headers, page breaks, TOC, and export.
Book Design
2 articlesKDP Cover Formatting Guide — Interactive Cover Template Calculator
Interactive KDP cover template calculator. Enter trim size, page count, and paper type to get exact cover dimensions with spine width, bleed, and safe zones. Includes visual diagram.
White Paper vs Cream Paper for KDP — Visual Comparison Tool
Interactive visual comparison of white and cream paper for Amazon KDP paperbacks. See how text looks on each, compare costs, and find which suits your genre.
Tools & Software
100 articlesSpine width for a 100-page 5.06×7.81 inch KDP paperback
Exact spine width for a 100-page 5.06×7.81 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 5.25×8 inch KDP paperback
Exact spine width for a 100-page 5.25×8 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 5.5×8.5 inch KDP paperback
Exact spine width for a 100-page 5.5×8.5 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 5×8 inch KDP paperback
Exact spine width for a 100-page 5×8 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 6.14×9.21 inch KDP paperback
Exact spine width for a 100-page 6.14×9.21 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 6.69×9.61 inch KDP paperback
Exact spine width for a 100-page 6.69×9.61 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 6×9 inch KDP paperback
Exact spine width for a 100-page 6×9 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 7.5×9.25 inch KDP paperback
Exact spine width for a 100-page 7.5×9.25 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 7×10 inch KDP paperback
Exact spine width for a 100-page 7×10 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 8.5×11 inch KDP paperback
Exact spine width for a 100-page 8.5×11 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 8.5×8.5 inch KDP paperback
Exact spine width for a 100-page 8.5×8.5 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 100-page 8×10 inch KDP paperback
Exact spine width for a 100-page 8×10 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 5.06×7.81 inch KDP paperback
Exact spine width for a 150-page 5.06×7.81 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 5.25×8 inch KDP paperback
Exact spine width for a 150-page 5.25×8 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 5.5×8.5 inch KDP paperback
Exact spine width for a 150-page 5.5×8.5 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 5×8 inch KDP paperback
Exact spine width for a 150-page 5×8 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 6.14×9.21 inch KDP paperback
Exact spine width for a 150-page 6.14×9.21 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 6.69×9.61 inch KDP paperback
Exact spine width for a 150-page 6.69×9.61 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 6×9 inch KDP paperback
Exact spine width for a 150-page 6×9 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 7.5×9.25 inch KDP paperback
Exact spine width for a 150-page 7.5×9.25 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 7×10 inch KDP paperback
Exact spine width for a 150-page 7×10 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 8.5×11 inch KDP paperback
Exact spine width for a 150-page 8.5×11 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 8.5×8.5 inch KDP paperback
Exact spine width for a 150-page 8.5×8.5 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 8×10 inch KDP paperback
Exact spine width for a 150-page 8×10 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 5.06×7.81 inch KDP paperback
Exact spine width for a 200-page 5.06×7.81 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 5.25×8 inch KDP paperback
Exact spine width for a 200-page 5.25×8 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 5.5×8.5 inch KDP paperback
Exact spine width for a 200-page 5.5×8.5 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 5×8 inch KDP paperback
Exact spine width for a 200-page 5×8 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 6.14×9.21 inch KDP paperback
Exact spine width for a 200-page 6.14×9.21 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 6.69×9.61 inch KDP paperback
Exact spine width for a 200-page 6.69×9.61 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 6×9 inch KDP paperback
Exact spine width for a 200-page 6×9 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 7.5×9.25 inch KDP paperback
Exact spine width for a 200-page 7.5×9.25 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 7×10 inch KDP paperback
Exact spine width for a 200-page 7×10 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 8.5×11 inch KDP paperback
Exact spine width for a 200-page 8.5×11 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 8.5×8.5 inch KDP paperback
Exact spine width for a 200-page 8.5×8.5 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 8×10 inch KDP paperback
Exact spine width for a 200-page 8×10 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 5.06×7.81 inch KDP paperback
Exact spine width for a 250-page 5.06×7.81 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 5.25×8 inch KDP paperback
Exact spine width for a 250-page 5.25×8 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 5.5×8.5 inch KDP paperback
Exact spine width for a 250-page 5.5×8.5 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 5×8 inch KDP paperback
Exact spine width for a 250-page 5×8 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 6.14×9.21 inch KDP paperback
Exact spine width for a 250-page 6.14×9.21 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 6.69×9.61 inch KDP paperback
Exact spine width for a 250-page 6.69×9.61 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 6×9 inch KDP paperback
Exact spine width for a 250-page 6×9 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 7.5×9.25 inch KDP paperback
Exact spine width for a 250-page 7.5×9.25 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 7×10 inch KDP paperback
Exact spine width for a 250-page 7×10 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 8.5×11 inch KDP paperback
Exact spine width for a 250-page 8.5×11 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 8.5×8.5 inch KDP paperback
Exact spine width for a 250-page 8.5×8.5 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 8×10 inch KDP paperback
Exact spine width for a 250-page 8×10 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 5.06×7.81 inch KDP paperback
Exact spine width for a 300-page 5.06×7.81 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 5.25×8 inch KDP paperback
Exact spine width for a 300-page 5.25×8 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 5.5×8.5 inch KDP paperback
Exact spine width for a 300-page 5.5×8.5 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 5×8 inch KDP paperback
Exact spine width for a 300-page 5×8 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 6.14×9.21 inch KDP paperback
Exact spine width for a 300-page 6.14×9.21 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 6.69×9.61 inch KDP paperback
Exact spine width for a 300-page 6.69×9.61 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 6×9 inch KDP paperback
Exact spine width for a 300-page 6×9 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 7.5×9.25 inch KDP paperback
Exact spine width for a 300-page 7.5×9.25 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 7×10 inch KDP paperback
Exact spine width for a 300-page 7×10 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 8.5×11 inch KDP paperback
Exact spine width for a 300-page 8.5×11 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 8.5×8.5 inch KDP paperback
Exact spine width for a 300-page 8.5×8.5 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 8×10 inch KDP paperback
Exact spine width for a 300-page 8×10 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 5.06×7.81 inch KDP paperback
Exact spine width for a 400-page 5.06×7.81 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 5.25×8 inch KDP paperback
Exact spine width for a 400-page 5.25×8 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 5.5×8.5 inch KDP paperback
Exact spine width for a 400-page 5.5×8.5 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 5×8 inch KDP paperback
Exact spine width for a 400-page 5×8 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 6.14×9.21 inch KDP paperback
Exact spine width for a 400-page 6.14×9.21 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 6.69×9.61 inch KDP paperback
Exact spine width for a 400-page 6.69×9.61 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 6×9 inch KDP paperback
Exact spine width for a 400-page 6×9 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 7.5×9.25 inch KDP paperback
Exact spine width for a 400-page 7.5×9.25 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 7×10 inch KDP paperback
Exact spine width for a 400-page 7×10 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 8.5×11 inch KDP paperback
Exact spine width for a 400-page 8.5×11 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 8.5×8.5 inch KDP paperback
Exact spine width for a 400-page 8.5×8.5 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 8×10 inch KDP paperback
Exact spine width for a 400-page 8×10 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 5.06×7.81 inch KDP paperback
Exact spine width for a 50-page 5.06×7.81 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 5.25×8 inch KDP paperback
Exact spine width for a 50-page 5.25×8 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 5.5×8.5 inch KDP paperback
Exact spine width for a 50-page 5.5×8.5 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 5×8 inch KDP paperback
Exact spine width for a 50-page 5×8 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 6.14×9.21 inch KDP paperback
Exact spine width for a 50-page 6.14×9.21 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 6.69×9.61 inch KDP paperback
Exact spine width for a 50-page 6.69×9.61 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 6×9 inch KDP paperback
Exact spine width for a 50-page 6×9 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 7.5×9.25 inch KDP paperback
Exact spine width for a 50-page 7.5×9.25 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 7×10 inch KDP paperback
Exact spine width for a 50-page 7×10 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 8.5×11 inch KDP paperback
Exact spine width for a 50-page 8.5×11 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 8.5×8.5 inch KDP paperback
Exact spine width for a 50-page 8.5×8.5 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 8×10 inch KDP paperback
Exact spine width for a 50-page 8×10 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 5.06×7.81 inch KDP paperback
Exact spine width for a 500-page 5.06×7.81 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 5.25×8 inch KDP paperback
Exact spine width for a 500-page 5.25×8 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 5.5×8.5 inch KDP paperback
Exact spine width for a 500-page 5.5×8.5 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 5×8 inch KDP paperback
Exact spine width for a 500-page 5×8 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 6.14×9.21 inch KDP paperback
Exact spine width for a 500-page 6.14×9.21 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 6.69×9.61 inch KDP paperback
Exact spine width for a 500-page 6.69×9.61 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 6×9 inch KDP paperback
Exact spine width for a 500-page 6×9 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 7.5×9.25 inch KDP paperback
Exact spine width for a 500-page 7.5×9.25 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 7×10 inch KDP paperback
Exact spine width for a 500-page 7×10 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 8.5×11 inch KDP paperback
Exact spine width for a 500-page 8.5×11 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 8.5×8.5 inch KDP paperback
Exact spine width for a 500-page 8.5×8.5 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 8×10 inch KDP paperback
Exact spine width for a 500-page 8×10 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
KDP Formatting Checklist — Interactive Pre-Upload Checklist
Interactive KDP formatting checklist you can tick off as you go. Covers interior formatting, cover setup, metadata, and upload steps. Download as PDF when complete.
KDP Margin Calculator — Get Exact Gutter Margins for Your Page Count
Calculate the exact gutter and outside margins required for your Amazon KDP paperback based on page count and trim size. Uses Amazon's official margin table.
KDP Spine Width Calculator — Calculate Exact Spine Measurement
Calculate the exact spine width for your KDP paperback. Enter page count and paper type to get precise spine measurements for your book cover design.
KDP Trim Size Guide — Find the Perfect Size for Your Book
Interactive guide to all Amazon KDP trim sizes. Find which trim size suits your genre with UK-specific examples, bleed options, and a filterable comparison table.