Leaf & Spine

5.06 x 7.81 in · 430 pages

430-page 5.06 x 7.81 in book: spine width & cover size

A 430-page 5.06 x 7.81 in paperback has a spine of 0.9684 in (24.6 mm) on white paper or 1.075 in on cream. Full cover with bleed: 11.338 x 8.06 in.

0.968 inSpine, white paper24.6 mm
1.075 inSpine, cream paper27.31 mm
11.34 x 8.06Full cover, inchesincl. bleed
425 gEstimated weight15 oz

Cover template (white paper)

Barcode areaBACK COVER5.06 x 7.81 inFRONT COVER5.06 x 7.81 inSPINE 0.968 inFull cover 11.338 x 8.06 in incl. 0.125 in bleed
Red: bleed (trimmed off) · dashed: 0.25 in safe zone · shaded: spine. Download a full-size template from the calculator.

Spine and cover by paper type

PaperSpineSpine (mm)Full cover (in)Full cover (mm)At 300 ppi
White paper, black ink0.9684 in24.6 mm11.338 x 8.06 in288 x 204.7 mm3,402 x 2,418 px
Cream paper, black ink1.075 in27.31 mm11.445 x 8.06 in290.7 x 204.7 mm3,433 x 2,418 px
Standard color (white)0.9684 in24.6 mm11.338 x 8.06 in288 x 204.7 mm3,402 x 2,418 px
Premium color (white)1.0092 in25.63 mm11.379 x 8.06 in289 x 204.7 mm3,414 x 2,418 px

Per-page factors are those published by KDP; IngramSpark and offset printers use their own paper calipers.

Other printers: spine by paper PPI

Paper PPITypical stockSpineSpine (mm)
350 PPIBulky / heavy stock (~70 lb text)1.2286 in31.21 mm
400 PPICream book paper (~55 lb)1.075 in27.31 mm
444 PPIWhite book paper (~50 lb)0.9685 in24.6 mm
500 PPILightweight text (~45 lb)0.86 in21.84 mm
600 PPIThin text (~40 lb)0.7167 in18.2 mm

If your printer quotes pages per inch (PPI), spine = pages ÷ PPI. Ask for the exact PPI of your chosen stock.

Designing this cover

  • Build the cover canvas at 11.338 x 8.06 in — or 3,402 x 2,418 px at 300 ppi.
  • The back cover runs from the left edge to 5.185 in; the spine from 5.185 to 6.153 in; the front cover after that.
  • Spine text is allowed — centre it and keep 0.0625 in clear on each side.
  • Keep titles and faces at least 0.25 in inside the trim; KDP places the barcode in a 2 x 1.2 in area at the lower right of the back cover.
  • Export as a flattened PDF (PDF/X-1a is safest) with fonts embedded.

Nearby page counts

PagesSpine (white)Spine (cream)Full cover (white)
370 pages0.8332 in0.925 in11.203 x 8.06 in
380 pages0.8558 in0.95 in11.226 x 8.06 in
390 pages0.8783 in0.975 in11.248 x 8.06 in
400 pages0.9008 in1 in11.271 x 8.06 in
410 pages0.9233 in1.025 in11.293 x 8.06 in
420 pages0.9458 in1.05 in11.316 x 8.06 in
440 pages0.9909 in1.1 in11.361 x 8.06 in
450 pages1.0134 in1.125 in11.383 x 8.06 in
460 pages1.0359 in1.15 in11.406 x 8.06 in
470 pages1.0584 in1.175 in11.428 x 8.06 in
480 pages1.081 in1.2 in11.451 x 8.06 in
490 pages1.1035 in1.225 in11.473 x 8.06 in

430 pages in other trim sizes

TrimSpine (white)Full cover (white)
5 x 8 in0.9684 in11.218 x 8.25 in
5.25 x 8 in0.9684 in11.718 x 8.25 in
5.5 x 8.5 in0.9684 in12.218 x 8.75 in
6 x 9 in0.9684 in13.218 x 9.25 in
6.14 x 9.21 in0.9684 in13.498 x 9.46 in
6.69 x 9.61 in0.9684 in14.598 x 9.86 in
7 x 10 in0.9684 in15.218 x 10.25 in
7.5 x 9.25 in0.9684 in16.218 x 9.5 in
8 x 10 in0.9684 in17.218 x 10.25 in
8.5 x 8.5 in0.9684 in18.218 x 8.75 in
8.5 x 11 in0.9684 in18.218 x 11.25 in

Spine width depends only on page count and paper; the cover width changes with the trim.

Frequently asked questions

How wide is the spine of a 430-page 5.06 x 7.81 in book?
On white paper it is 0.9684 in (24.6 mm); on cream paper 1.075 in (27.31 mm), using KDP's per-page factors.
What size should the full cover be?
For white paper: 11.338 x 8.06 in (288 x 204.7 mm) including 0.125 in bleed on every side. For cream paper: 11.445 x 8.06 in.
Can I put text on the spine?
Yes. KDP allows spine text only for books with more than 79 pages; keep it at least 0.0625 in (1.6 mm) from each spine edge.
How heavy is a 430-page 5.06 x 7.81 in paperback?
About 425 g (15 oz) on white paper with a standard cover — useful for estimating postage.