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TV Size & Viewing Distance Calculator
Find the perfect TV size based on your viewing distance, resolution, and how you watch. Includes THX/SMPTE viewing angle analysis.
Viewing Distance
Display
Balanced for all content types
Recommended TV Size
75"
Best for 10 ft viewing at 4K (mixed)
Minimum Size
55"
Acceptable minimum
Maximum Size
98"
Acceptable maximum
75" TV Dimensions
65.4"
Width
36.8"
Height
5.4ft
Width (ft)
Viewing Angle Analysis
Meets SMPTE 30° standard for professional broadcast viewing.
Room Preview
All Standard Sizes at 10 ft (4K)
| Size | Width | Height | Angle |
|---|---|---|---|
| 32" | 27.9" | 15.7" | 13.3° |
| 40" | 34.9" | 19.6" | 16.5° |
| 43" | 37.5" | 21.1" | 17.8° |
| 50" | 43.6" | 24.5" | 20.6° |
| 55" | 47.9" | 27" | 22.6° |
| 65" | 56.7" | 31.9" | 26.6° |
| 75"REC | 65.4" | 36.8" | 30.5° |
| 77" | 67.1" | 37.8" | 31.2° |
| 83" | 72.3" | 40.7" | 33.5° |
| 85" | 74.1" | 41.7" | 34.3° |
| 86" | 75" | 42.2" | 34.7° |
| 98" | 85.4" | 48.1" | 39.2° |
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Find an InstallerHow to Choose the Right TV Size
Choosing the right TV size comes down to your viewing distance and resolution. The distance between your seating and the screen determines how large the TV should be for the best experience. Too small and you miss details; too large and you may see pixels or feel overwhelmed.
Viewing Angle Standards: THX vs SMPTE
The THX standard recommends a minimum 36° viewing angle for a cinematic experience — this means the TV should cover at least 36° of your field of vision. SMPTE (the professional broadcast standard) recommends a minimum of 30°. Most living rooms land around 20-30°, which is comfortable but not cinematic. Our calculator shows you exactly where your setup falls.
Resolution Makes a Difference
With 4K TVs, you can sit much closer without seeing pixels. This means 4K lets you go larger for the same distance — or sit closer to the same size screen. For most living rooms (8-12 ft) with 4K, a 65" to 75" TV is ideal. Bedrooms (6-8 ft) work well with 50"-55". For dedicated theaters at 12+ ft, consider 75" or larger — or explore a projector with our Projector Throw Calculator.
Once you've picked your size, use our TV Mounting Height Calculator to find the perfect wall mounting position.
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Projector Throw Calculator
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Calculate screen dimensions from diagonal, width, or height for any aspect ratio including custom.