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Screen size calculator
Screen diagonal
mm
inch
foot
meter
Resolution
Calculate screen size !
Screen size
Aspect ratio:
1.85
(landscape orientation)
Type of aspect ratio = Cinema 'Flat'
Screen dimensions
mm
inch
foot
meter
Screen diagonal
288
"
24
ft
7.32
m
Screen width
253
"
21.1
ft
6.44
m
Screen height
137
"
11.4
ft
3.48
m
Screen surface
241
sq.ft.
22.4
m²
Pixel density
Megapixels:
2.2 MP
(2,157,840 pixels)
Pixel size =
3.22
mm =
0.127
inch
Pixel density =
7.9
dpi (dots-per-inch)
Pixel density =
0.3
dpmm (dots-per-mm)
Viewing distance
Viewing distances
mm
inch
foot
meter
Minimum viewing distance
max 70° viewing angle for full field-of-view experience
181
"
15.1
ft
4.6
m
Visual Acuity minimum distance
pixel < 1/60° so that individual pixels cannot be seen
436
"
36.3
ft
11.1
m
Ideal viewing distance
30° viewing angle for full field-of-view experience
473
"
39.4
ft
12
m
Maximum viewing distance
min 26° viewing angle for full field-of-view experience
549
"
45.7
ft
13.9
m
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