DPI calculator: ISO A2 poster

Use this calculator to find out how many pixels (resolution) an image should have to be printed at a certain size.

Print Dimensions

Net dimensions (no bleed)
420 mm x 420 mm = 176400 mm2 (diagonal: 593.97 mm)
42 cm x 42 cm = 1764 cm2 (diagonal: 59.4 cm)
16.54 inch x 16.54 inch = 273.57 inch2 (diagonal: 23.39 inch)
1.38 feet x 1.38 feet = 1.9 feet2 (diagonal: 1.95 feet)

Print Pixel Size

Dots-per-inch
Printer resolution = 300 dpi = 118 dots/cm
Printer pitch = 85 µm / micrometer (size of 1 pixel)
Net dimensions (no bleed)
4962 px x 4962 px = 24.6 megapixels
= aspect ratio 1

Some examples