Spine Calculator
A spine is the text block bulk plus two cover thicknesses plus the bindery allowance. Measure the real caliper, then round the result to the size the bindery can hold.
Result
Values update as you type. Nothing is sent anywhere.
Worked example
More calculatorsSpine width from leaf count, text caliper, cover thickness and a glue allowance. The page computes in the browser and does not store inputs. For a printed version, use the matching card in the tools directory.