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Amazon KDP calculator

Your spine width, full-cover dimensions, printing cost and royalties — per marketplace, instantly. Free, no sign-up, 100% in your browser.

Your book

Between 24 and 828 pages.

Used for the spine and the printing rate.

Profitability

Public price on Amazon (incl. tax).

Défaut = TVA livre France 5,5 %. Autres : DE 7 %, IT 4 %, ES 4 %, NL 9 %, BE 6 %, IE 0 %.

Amazon royalty: 60% of the price excl. tax if price ≥ €9.99, otherwise 50% — minus the printing cost.

Cover & binding

Spine
6.9 mm
0.27 in
Gutter (binding)
9.6 mm
0.38 in
Full cover
318 mm × 235 mm
12.52 in × 9.25 in · bleed 3.2 mm
Interior trim
6″ × 9″ — most common
Page (before bleed)

What your book earns you

Printing cost (1 copy)
€2.19
Official KDP rate
Lowest possible price
€4.62
Royalty ≥ 0 (break-even point)
Enter a list price to see what each copy earns you.

Price simulation

PriceRateRoyalty / copy100 sales
€4.6250 %-€0.00-€0.00
€9.9960 %€3.49€349.00
€12.9960 %€5.20€520.00
€14.9960 %€6.34€634.00
€19.9960 %€9.18€918.00

Printing cost per marketplace

Amazon.com$2.44
Amazon.co.uk£2.05
Amazon Europe€2.19
Amazon.co.jp¥446
Amazon.caCA$3.18
Amazon.com.auA$5.06
Amazon.plPLN 10.23
Amazon.seSEK 24.45

🔒 Computed 100% in your browser — no data is sent. Official Amazon KDP rates (registry 2026.07.02, monitored weekly) — double-check the final amount on your KDP dashboard.

✅ What it works out

  • The spine width from your page count and paper
  • The exact full-cover dimensions (bleed included)
  • The gutter (binding margin) KDP requires
  • Printing cost, royalty and what each sale earns you
  • Paperback AND hardcover, plus a 35/70% ebook bonus

⚠️ Good to know

  • Paperback 24–828 pages, hardcover 75–550 (KDP limits)
  • Royalty = 60% of price excl. tax − printing (50% under $9.99 — 2025 rule)
  • Official Amazon KDP rates, monitored every week
  • Large trim (> 6.12″ × 9″): higher printing cost

Ready to publish a complete book on Amazon KDP?

Discover Gumake