Leaf & Spine

5.06 x 7.81 in · 130 pages

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

A 130-page 5.06 x 7.81 in paperback has a spine of 0.2928 in (7.44 mm) on white paper or 0.325 in on cream. Full cover with bleed: 10.663 x 8.06 in.

0.293 inSpine, white paper7.44 mm
0.325 inSpine, cream paper8.26 mm
10.66 x 8.06Full cover, inchesincl. bleed
137 gEstimated weight4.8 oz

Cover template (white paper)

Barcode areaBACK COVER5.06 x 7.81 inFRONT COVER5.06 x 7.81 inSPINE 0.293 inFull cover 10.663 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 ink0.2928 in7.44 mm10.663 x 8.06 in270.8 x 204.7 mm3,199 x 2,418 px
Cream paper, black ink0.325 in8.26 mm10.695 x 8.06 in271.7 x 204.7 mm3,208 x 2,418 px
Standard color (white)0.2928 in7.44 mm10.663 x 8.06 in270.8 x 204.7 mm3,199 x 2,418 px
Premium color (white)0.3051 in7.75 mm10.675 x 8.06 in271.1 x 204.7 mm3,203 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)0.3714 in9.43 mm
400 PPICream book paper (~55 lb)0.325 in8.26 mm
444 PPIWhite book paper (~50 lb)0.2928 in7.44 mm
500 PPILightweight text (~45 lb)0.26 in6.6 mm
600 PPIThin text (~40 lb)0.2167 in5.5 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 10.663 x 8.06 in — or 3,199 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 5.478 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)
72 pages0.1621 in0.18 in10.532 x 8.06 in
80 pages0.1802 in0.2 in10.55 x 8.06 in
90 pages0.2027 in0.225 in10.573 x 8.06 in
100 pages0.2252 in0.25 in10.595 x 8.06 in
110 pages0.2477 in0.275 in10.618 x 8.06 in
120 pages0.2702 in0.3 in10.64 x 8.06 in
140 pages0.3153 in0.35 in10.685 x 8.06 in
150 pages0.3378 in0.375 in10.708 x 8.06 in
160 pages0.3603 in0.4 in10.73 x 8.06 in
170 pages0.3828 in0.425 in10.753 x 8.06 in
180 pages0.4054 in0.45 in10.775 x 8.06 in
190 pages0.4279 in0.475 in10.798 x 8.06 in

130 pages in other trim sizes

TrimSpine (white)Full cover (white)
5 x 8 in0.2928 in10.543 x 8.25 in
5.25 x 8 in0.2928 in11.043 x 8.25 in
5.5 x 8.5 in0.2928 in11.543 x 8.75 in
6 x 9 in0.2928 in12.543 x 9.25 in
6.14 x 9.21 in0.2928 in12.823 x 9.46 in
6.69 x 9.61 in0.2928 in13.923 x 9.86 in
7 x 10 in0.2928 in14.543 x 10.25 in
7.5 x 9.25 in0.2928 in15.543 x 9.5 in
8 x 10 in0.2928 in16.543 x 10.25 in
8.5 x 8.5 in0.2928 in17.543 x 8.75 in
8.5 x 11 in0.2928 in17.543 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 130-page 5.06 x 7.81 in book?
On white paper it is 0.2928 in (7.44 mm); on cream paper 0.325 in (8.26 mm), using KDP's per-page factors.
What size should the full cover be?
For white paper: 10.663 x 8.06 in (270.8 x 204.7 mm) including 0.125 in bleed on every side. For cream paper: 10.695 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 130-page 5.06 x 7.81 in paperback?
About 137 g (4.8 oz) on white paper with a standard cover — useful for estimating postage.