Dimensions of C3 format

C 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 C3 format: 458 mm = 45,8 cm
Width of C3 format: 324 mm = 32,4 cm

Dimensions of C3 format in mm: 324 x 458 mm
Dimensions of C3 format in cm: 32,4 x 45,8 cm
Dimensions of C3 format in inches: 12,76" x 18,03"

Print ready file dimensions in pixels at 300 DPI: 3 827 x 5 409 px
Print ready file dimensions in pixels at 72 DPI: 918 x 1 298 px