Height of B8 paper size: 62 mm. = 6.2 cm.
Width of B8 paper size: 88 mm. = 8.8 cm.
Dimensions of B8 in mm: 62 x 88 mm.
Dimensions of B8 in cm: 6.2 x 8.8 cm.
Dimensions of B8 in inches: 2.44″ x 3.46″
Graphic file dimensions in pixels for 300 DPI printing: 732 x 1039 px.
Graphic file dimensions in pixels for 72 DPI printing: 176 x 249 px.