The C9 paper size

The dimensions of the C9 paper size are 40 mm in height and 57 mm in width. They may also be expressed in inches. Then, the dimensions will be 1.6″ x 2.2″. If one wants to print a material in the C9 format in 300 DPI, he or she has to remember that its digital size will be 472 x 673 px.

dimensions in millimeters:
wymiar c9 w milimetrach Dimension C9. Width: 841mm Height: 1189mm

format division C do C9:

wymiar papieru format c9