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Size of an unfolded sheet

The formulas here are used to calculate the measurements of a sheet before folding, when the point of reference is the measurements of the folded sheet.

Please note that the formulas do not indicate whether any bend is possible: they are entirely to be used for calculation.

 Guiding calculation for the measurements of a sheet before folding
 1 bend
Enter the length of L1 in mm: L1
Enter the length of L2 in mm: L2
Enter the addition per bend in mm (see box): A
Submit

 Guiding calculation for the measurements of a sheet before folding
 2 bends
Enter the length of L1 in mm: L1
Enter the length of L2 in mm: L2
Enter the length of L3 in mm: L3
Enter the addition per bend in mm (see box): A
Submit

 Guiding calculation for the measurements of a sheet before folding
 3 bends
Enter the length of L1 in mm: L1
Enter the length of L2 in mm: L2
Enter the length of L3 in mm: L3
Enter the length of L4 in mm: L4
Enter the addition per bend in mm (see box): A
Submit

 Guiding calculation for the measurements of a sheet before folding
 4 bends
Enter the length of L1 in mm: L1
Enter the length of L2 in mm: L2
Enter the length of L3 in mm: L3
Enter the length of L4 in mm: L4
Enter the length of L5 in mm: L5
Enter the addition per bend in mm (see box): A
Submit

Reservations
Please note that we make reservations with regard to any mistakes in the results of calculations made on this page, e.g. errors made when entering in values or errors in the formulas themselves.