Height of B4 paper size: 250 mm. = 25 cm.
Width of B4 paper size: 353 mm. = 35.3 cm.
Dimensions of B4 in mm: 250 x 353 mm.
Dimensions of B4 in cm: 25 x 35.3 cm.
Dimensions of B4 in inches: 9.84″ x 13.90″
Graphic file dimensions in pixels for 300 DPI printing: 2953 x 4169 px.
Graphic file dimensions in pixels for 72 DPI printing: 709 x 1001 px.