Get exact cover dimensions for Kindle ebooks, paperbacks and hardcovers — free, no signup.
| Format | Trim size | Typical use |
|---|---|---|
| 5.5" × 8.5" | Digest | Novels, memoirs |
| 6" × 9" | Trade | The industry standard for non-fiction |
| 6.14" × 9.21" | A5 | International standard |
| 7" × 10" | Large format | Workbooks, textbooks |
| 8.5" × 11" | Large | Planners, activity books, manuals |
Kindle ebook: 1600 × 2560 px ideal (1.6:1). Min 1000px longest side. JPG or TIFF, RGB, max 50 MB.
Paperback/hardcover: 300 DPI, native resolution, 0.125" bleed, CMYK preferred.
Spine width formula: page count × paper thickness. White 0.002252"/page, cream 0.0025"/page.
Safe margin: keep text 0.5" from trim (paperback) or 0.625" (hardcover).
Why is my Kindle cover rejected? Most common: too small (under 1000px), square 1:1 ratio, or wrong format. Use 1600 × 2560.
Do I need bleed on a Kindle cover? No — bleed is only for print. Kindle is front-cover-only, exact pixels.
Is this calculator free? Yes — completely free, no signup, runs in your browser. Always confirm with the official KDP Cover Calculator before ordering a print proof.
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