DPI: US Crown

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)
381 mm x 508 mm = 193548 mm2aspect ratio: 0.75 (diagonal: 635 mm)
38.1 cm x 50.8 cm = 1935.48 cm2aspect ratio: 0.75 (diagonal: 63.5 cm)
15 inch x 20 inch = 300 inch2aspect ratio: 0.75 (diagonal: 25 inch)
1.25 feet x 1.67 feet = 2.09 feet2aspect ratio: 0.749 (diagonal: 2.09 feet)

Print Pixel Size

Dots-per-inch
Printer resolution = 72 dpi = 28 dots/cm
Printer pitch = 353 µm / micrometer (size of 1 pixel)
Net dimensions (no bleed)
1080 px x 1440 px = 1.6 megapixels
= aspect ratio 0.75

Some examples

References