Leaf & Spine

6 x 9 in US Trade · 780 pages

780-page 6 x 9 in book: spine width & cover size

A 780-page 6 x 9 in paperback has a spine of 1.7566 in (44.62 mm) on white paper or 1.95 in on cream. Full cover with bleed: 14.007 x 9.25 in.

1.757 inSpine, white paper44.62 mm
1.95 inSpine, cream paper49.53 mm
14.01 x 9.25Full cover, inchesincl. bleed
1,039 gEstimated weight36.6 oz

Cover template (white paper)

Barcode areaBACK COVER6 x 9 inFRONT COVER6 x 9 inSPINE 1.757 inFull cover 14.007 x 9.25 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 ink1.7566 in44.62 mm14.007 x 9.25 in355.8 x 235 mm4,202 x 2,775 px
Cream paper, black ink1.95 in49.53 mm14.2 x 9.25 in360.7 x 235 mm4,260 x 2,775 px
Standard color (white)1.7566 in44.62 mm14.007 x 9.25 in355.8 x 235 mm4,202 x 2,775 px
Premium color (white)1.8307 in46.5 mm14.081 x 9.25 in357.6 x 235 mm4,224 x 2,775 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)2.2286 in56.61 mm
400 PPICream book paper (~55 lb)1.95 in49.53 mm
444 PPIWhite book paper (~50 lb)1.7568 in44.62 mm
500 PPILightweight text (~45 lb)1.56 in39.62 mm
600 PPIThin text (~40 lb)1.3 in33.02 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 14.007 x 9.25 in — or 4,202 x 2,775 px at 300 ppi.
  • The back cover runs from the left edge to 6.125 in; the spine from 6.125 to 7.882 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)
720 pages1.6214 in1.8 in13.871 x 9.25 in
740 pages1.6665 in1.85 in13.916 x 9.25 in
760 pages1.7115 in1.9 in13.962 x 9.25 in
800 pages1.8016 in2 in14.052 x 9.25 in
828 pages1.8647 in2.07 in14.115 x 9.25 in

780 pages in other trim sizes

TrimSpine (white)Full cover (white)
5 x 8 in1.7566 in12.007 x 8.25 in
5.06 x 7.81 in1.7566 in12.127 x 8.06 in
5.25 x 8 in1.7566 in12.507 x 8.25 in
5.5 x 8.5 in1.7566 in13.007 x 8.75 in
6.14 x 9.21 in1.7566 in14.287 x 9.46 in
6.69 x 9.61 in1.7566 in15.387 x 9.86 in
7 x 10 in1.7566 in16.007 x 10.25 in
7.5 x 9.25 in1.7566 in17.007 x 9.5 in
8 x 10 in1.7566 in18.007 x 10.25 in
8.5 x 8.5 in1.7566 in19.007 x 8.75 in
8.5 x 11 in1.7566 in19.007 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 780-page 6 x 9 in book?
On white paper it is 1.7566 in (44.62 mm); on cream paper 1.95 in (49.53 mm), using KDP's per-page factors.
What size should the full cover be?
For white paper: 14.007 x 9.25 in (355.8 x 235 mm) including 0.125 in bleed on every side. For cream paper: 14.2 x 9.25 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 780-page 6 x 9 in paperback?
About 1,039 g (36.6 oz) on white paper with a standard cover — useful for estimating postage.