Height of B7 paper size: 88 mm. = 8.8 cm.
Width of B7 paper size: 125 mm. = 12.5 cm.
Dimensions of B7 in mm: 88 x 125 mm.
Dimensions of B7 in cm: 8.8 x 12.5 cm.
Dimensions of B7 in inches: 3.46″ x 4.92″
Graphic file dimensions in pixels for 300 DPI printing: 1039 x 1476 px.
Graphic file dimensions in pixels for 72 DPI printing: 249 x 354 px.