Screen size calculator

Screen size

Height= 30.9mm = 1.22inch
Width= 25.4mm = 0.999inch
Diagonal= 40mm = 1.57inch
Surface= 1.22inch2

Pixel density

Pixel size = 78.3µm
Pixel density = 324.5 dpi (dots-per-inch)
Pixel density = 12.8 dpmm (dots-per-mm)

Viewing distance

  • Minimum viewing distance = 22.1mm = 0.87inch
    (max 70° viewing angle for full field-of-view experience)
  • Visual Acuity minimum distance = 269mm = 10.6inch = 0.883foot
    (pixel < 1/60° so that individual pixels cannot be seen)
  • Ideal viewing distance = 49mm = 1.93inch
    (30° viewing angle for full field-of-view experience)
  • Maximum viewing distance = 56.4mm = 2.22inch
    (min 26° viewing angle for full field-of-view experience)

Examples