DPI calculator

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)
500 mm x 700 mm = 350000 mm2aspect ratio: 0.714 (diagonal: 860.23 mm)
50 cm x 70 cm = 3500 cm2aspect ratio: 0.714 (diagonal: 86.02 cm)
19.69 inch x 27.56 inch = 542.66 inch2aspect ratio: 0.714 (diagonal: 33.87 inch)
1.64 feet x 2.3 feet = 3.77 feet2aspect ratio: 0.713 (diagonal: 2.82 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)
5907 px x 8268 px = 48.8 megapixels
= aspect ratio 0.714

Some examples

References

  • Dots per inch
  • Bleed (printing)