Dimensions of A4 format

A series of paper sizes is defined by ISO 2016.

The height divided by the width of all formats
of A, B and C series is the square root of two (1.4142).

Height of A4 format: 297 mm = 29,7 cm
Width of A4 format: 210 mm = 21,0 cm

Dimensions of A4 format in mm: 210 x 297 mm
Dimensions of A4 format in cm: 21,0 x 29,7 cm
Dimensions of A4 format in inches: 8,27" x 11,69"

Print ready file dimensions in pixels at 300 DPI: 2 480 x 3 508 px
Print ready file dimensions in pixels at 72 DPI: 595 x 842 px