Height of A4 paper size: 210 mm. = 21 cm.
Width of A4 paper size: 297 mm. = 29.7 cm.
Dimensions of A4 in mm: 210 x 297 mm.
Dimensions of A4 in cm: 21 x 29.7 cm.
Dimensions of A4 in inches: 8.27″ x 11.69″
Graphic file dimensions in pixels for 300 DPI printing: 2480 x 3508 px.
Graphic file dimensions in pixels for 72 DPI printing: 595 x 842 px.