TV Size & Distance Calculator
Find the perfect viewing distance and compare TV sizes for your room.
Screen Size
Resolution
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Optimal Viewing Distance
4.6 – 9.2 ft
(1.4 – 2.8 m)
For 55" 4K TV
80 PPI
Pixel Density
32°
Viewing Angle
TV Preview
55"
Width
47.9"122 cm
Height
27.0"68 cm
Pixels
8.3M3840×2160
Aspect
16:9Widescreen
Size Guide (4K)
| Size | Width | Height | Min Dist | Max Dist |
|---|---|---|---|---|
| 32" | 27.9" | 15.7" | 2.7 ft | 5.3 ft |
| 43" | 37.5" | 21.1" | 3.6 ft | 7.2 ft |
| 50" | 43.6" | 24.5" | 4.2 ft | 8.3 ft |
| 55" | 47.9" | 27.0" | 4.6 ft | 9.2 ft |
| 65" | 56.7" | 31.9" | 5.4 ft | 10.8 ft |
| 75" | 65.4" | 36.8" | 6.3 ft | 12.5 ft |
| 85" | 74.1" | 41.7" | 7.1 ft | 14.2 ft |
Documentation
How It Works
Optimal viewing distance depends on both screen size and resolution. Higher resolution TVs can be watched closer without seeing individual pixels.
THX recommends 40° viewing angle for theatrical immersion, while SMPTE suggests 30° as the minimum. This calculator uses industry-standard multipliers scaled by resolution.
Screen Formulas
Frequently Asked Questions