Screen size calculator

Screen size

Screen dimensionsmminchfootmeter
Screen diagonal240"20ft6.1m
Screen width221"18.5ft5.62m
Screen height92.7"7.73ft2.36m
Screen surface143 sq.ft.13.2

Pixel density

Pixel size = 2.75 mm = 0.108 inch
Pixel density = 9.3 dpi (dots-per-inch)
Pixel density = 0.4 dpmm (dots-per-mm)

Viewing distance

Viewing distancesmminchfootmeter
Minimum viewing distance
max 70° viewing angle for full field-of-view experience
158"13.2ft4.01m
Visual Acuity minimum distance
pixel < 1/60° so that individual pixels cannot be seen
372"31ft9.44m
Ideal viewing distance
30° viewing angle for full field-of-view experience
413"34.4ft10.5m
Maximum viewing distance
min 26° viewing angle for full field-of-view experience
479"40ft12.2m

Examples