Height of B3 paper size: 353 mm. = 35.3 cm.
Width of B3 paper size: 5o0 mm. = 50 cm.
Dimensions of B3 in mm: 353 x 500 mm.
Dimensions of B3 in cm: 35.3 x 50 cm.
Dimensions of B3 in inches: 13.90″ x 19.69″
Graphic file dimensions in pixels for 300 DPI printing: 4169 x 5906 px.
Graphic file dimensions in pixels for 72 DPI printing: 1001 x 1417 px.