Cover Spread Width
A flat front-spine-back cover combines two panel widths and the spine, with outer bleed.
Cover Spread Width
Binding · 3 inputs
How to use this calculator
- Enter trim width in mm.
- Enter spine width in mm.
- Enter outer bleed in mm.
- Select Calculate and keep the output unit with the answer.
Before you use the answer
Confirm the production specification with the printer or delivery platform before choosing dimensions. Keep trim, bleed, live area and pixel density distinct. Numerical consistency helps prevent avoidable rework, but a final proof remains necessary to judge the finished layout.
Flaps, hinges and case-binding turn-ins are not included.
Does it save my inputs?
No calculation history is stored by this website. The calculator works locally in your browser. See the privacy policy for hosting and contact details.
Why might a result be approximate?
Measurement uncertainty, ideal-model assumptions and floating-point rounding can all matter. Displaying more digits does not improve the original measurement.
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