DPI calculator: ISO A1 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)
594 mm x 841 mm = 499554 mm2 (diagonal: 1029.62 mm)
59.4 cm x 84.1 cm = 4995.54 cm2 (diagonal: 102.96 cm)
23.39 inch x 33.11 inch = 774.44 inch2 (diagonal: 40.54 inch)
1.95 feet x 2.76 feet = 5.38 feet2 (diagonal: 3.38 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)
7017 px x 9933 px = 69.7 megapixels
= aspect ratio 0.706

Some examples