Estimate text-block thickness, spine width and full cover size using your own paper caliper.
Your input
Outputs are cleared when the input changes.
Result
Enter your data or use the example, then run the tool.
Worked example
200 page sides at 0.12 mm per leaf gives 12 mm text block; add 0.5 mm for a 12.5 mm spine. At 148 mm trim width and 3 mm bleed, cover width is 314.5 mm.
Method
Convert page sides to physical leaves, multiply by caliper, then add the printer allowance. Cover width is twice trim width plus spine and both outer bleeds.
Limits
Odd pages require confirmation to add a blank. GSM cannot determine caliper. This is not an official KDP, Ingram or printer template; confirm paper and binding details.
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