The size of an Australian passport picture, is a minimum of 35mm on 45mm with the head being a minimum of 32mm on 36mm
45mm
45 mm = 4.5 cm
45mm because 1 cm= 10mm so 40mm= 4cm and there's 45mm there which= 4,5cm.... :)
45mm
1 in = 2.54 cm 35 in = (35 x 2.54) = 88.9 cm
It varies from place to place. In India 3.5 x 3 is the size for a passport photo.
The size of a stamp size photo in India is 2 cm x 2.5 cm. In pixels it is 56.69 pixels x 70.87 pixels.
UK are 3.5cm width and 4.5 cm length
The size of the photos usually used in ID cards are stamp size photos. the size will be around 1.8x1.3 cm. The exact sizes are 2 X 2.5 cm in India :)
6x4 (cm)
4.5cm = 45mm = 4,500um