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6.14 x 9.21 KDP hardcover cover size

Exact full-wrap cover dimensions for a 6.14 × 9.21 in KDP hardcover, including 0.591 in wrap and the board overhang, with a spine sized to your page count.

Full cover (with wrap)
Pixels at 300 DPI
Spine width
Board size (front and back)
Exact cover size with every guide marked. Use it as a locked guide layer in Canva, Affinity, Photoshop or InDesign, then hide it before you export.

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6.14 x 9.21 KDP hardcover cover dimensions by page count

PagesWhite: cover (in)White: pixelsCream: cover (in)Cream: pixelsSpine (white)
7614.215 × 10.6274265 × 318914.234 × 10.6274271 × 31890.360 in
8014.224 × 10.6274268 × 318914.244 × 10.6274274 × 31890.369 in
10014.269 × 10.6274281 × 318914.294 × 10.6274289 × 31890.414 in
15014.382 × 10.6274315 × 318914.419 × 10.6274326 × 31890.527 in
20014.494 × 10.6274349 × 318914.544 × 10.6274364 × 31890.639 in
25014.607 × 10.6274383 × 318914.669 × 10.6274401 × 31890.752 in
30014.719 × 10.6274416 × 318914.794 × 10.6274439 × 31890.865 in
35014.832 × 10.6274450 × 318914.919 × 10.6274476 × 31890.977 in
40014.945 × 10.6274484 × 318915.044 × 10.6274514 × 31891.090 in
45015.057 × 10.6274518 × 318915.169 × 10.6274551 × 31891.202 in
50015.170 × 10.6274551 × 318915.294 × 10.6274589 × 31891.315 in
55015.282 × 10.6274585 × 318915.419 × 10.6274626 × 31891.428 in

KDP allows 76–550 pages for this format, and spine text from 80 pages. Pixel sizes are at 300 DPI, rounded up. Color interiors print on different paper, so pick your ink in the calculator above for an exact spine.

6.14 x 9.21 on other formats

KDP paperbackLulu paperback

Other KDP hardcover trim sizes

5.5 × 8.5 in6 × 9 in7 × 10 in8.25 × 11 in

Specs last checked against KDP's published specs in September 2026.

Frequently asked questions

What size is a 6.14 x 9.21 KDP hardcover cover?

It depends on page count. A 6.14 x 9.21 in KDP hardcover with 200 pages on white paper needs a full cover of 14.494 × 10.627 in (4349 × 3189 px at 300 DPI). The height is always 10.627 in.

Why is a 6.14 x 9.21 hardcover cover bigger than the book?

The cover wraps around boards that are slightly larger than the pages (6.337 × 9.446 in for 6.14 x 9.21), plus 0.591 in of wrap that folds inside on every edge. Keep text 0.125 in inside the board edges and out of the 0.394 in hinge beside the spine.

Can I put text on the spine?

KDP allows spine text from 80 pages. Leave some space between the text and each spine edge, because the fold can shift slightly in production.