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Video
Screen size
Screen size calculator
Screen diagonal
nm
µm
mm
inch
foot
meter
Resolution
Calculate screen size !
Screen size
Height=
30.9
mm =
1.22
inch
Width=
25.4
mm =
0.999
inch
Diagonal=
40
mm =
1.57
inch
Surface=
1.22
inch
2
Aspect ratio:
0.82
(portrait orientation)
Pixel density
Megapixels:
0.1 MP
(127,656 pixels)
Pixel size =
78.3
µm
Pixel density =
324.5
dpi (dots-per-inch)
Pixel density =
12.8
dpmm (dots-per-mm)
Viewing distance
Minimum viewing distance
=
22.1
mm =
0.87
inch
(max 70° viewing angle for full field-of-view experience)
Visual Acuity minimum distance
=
269
mm =
10.6
inch =
0.883
foot
(pixel < 1/60° so that individual pixels cannot be seen)
Ideal viewing distance
=
49
mm =
1.93
inch
(30° viewing angle for full field-of-view experience)
Maximum viewing distance
=
56.4
mm =
2.22
inch
(min 26° viewing angle for full field-of-view experience)
Examples
Digital TV:
32" HD
•
40" HD
•
43" HD
•
55" 4K UHD
•
65" 4k UHD
•
75" 8K UHD
Ultrawide 4K:
34" gaming monitor
•
49" gaming monitor
Apple:
21.5" iMac
•
27" iMac Retina
•
27" 5K iMac Pro
•
32" Pro Display XDR
Digital cinema:
20ft 2K scope
•
24ft 2K flat
•
80ft IMAX Laser 4K
Digital Signage (vertical):
55" Full HD portrait
•
65" 4K portrait
Apple Watch:
40mm Series 5
-
44mm Series 5
IoT:
7" Raspberry Pi screen