THX and SMPTE recommended viewing distance
The complete chart of THX and SMPTE recommended viewing distances for every TV size from 32 to 100 inches. In feet, in meters, and explained in plain language.
THX, SMPTE and ITU-R explained simply
Three professional bodies publish viewing angle standards for TV and cinema. They agree on one thing: the screen should fill a specific portion of your horizontal field of vision. The difference is how much.
For most home setups, sit between the SMPTE and THX distances. This places you close enough for immersion but far enough for comfort over long viewing sessions. The midpoint column in the table below gives you this sweet spot for every size.
THX and SMPTE distances for every TV size
All distances calculated using exact THX (36 degrees) and SMPTE (30 degrees) horizontal viewing angle formulas. Based on 16:9 aspect ratio.
| TV Size | THX (36 deg) distance | SMPTE (30 deg) distance | Sweet spot (midpoint) |
|---|---|---|---|
| 32" | 3.6 ft (1.1 m) | 4.3 ft (1.3 m) | 4 ft |
| 40" | 4.5 ft (1.4 m) | 5.4 ft (1.6 m) | 5 ft |
| 43" | 4.8 ft (1.5 m) | 5.8 ft (1.8 m) | 5.3 ft |
| 49" | 5.5 ft (1.7 m) | 6.6 ft (2 m) | 6.1 ft |
| 50" | 5.6 ft (1.7 m) | 6.8 ft (2.1 m) | 6.2 ft |
| 55" | 6.1 ft (1.9 m) | 7.5 ft (2.3 m) | 6.8 ft |
| 60" | 6.7 ft (2 m) | 8.1 ft (2.5 m) | 7.4 ft |
| 65" | 7.3 ft (2.2 m) | 8.8 ft (2.7 m) | 8.1 ft |
| 70" | 7.8 ft (2.4 m) | 9.5 ft (2.9 m) | 8.7 ft |
| 75" | 8.4 ft (2.6 m) | 10.2 ft (3.1 m) | 9.3 ft |
| 77" | 8.6 ft (2.6 m) | 10.4 ft (3.2 m) | 9.5 ft |
| 85" | 9.5 ft (2.9 m) | 11.5 ft (3.5 m) | 10.5 ft |
| 86" | 9.6 ft (2.9 m) | 11.7 ft (3.6 m) | 10.6 ft |
| 90" | 10.1 ft (3.1 m) | 12.2 ft (3.7 m) | 11.1 ft |
| 98" | 11 ft (3.4 m) | 13.3 ft (4.1 m) | 12.2 ft |
| 100" | 11.2 ft (3.4 m) | 13.6 ft (4.1 m) | 12.4 ft |
Find your TV size in the left column. The THX column is the closest you should sit for a cinema experience. The SMPTE column is the standard broadcast distance. If your couch falls between those two numbers, your setup is within professional recommendations.
Get your exact recommendation
The table above gives standard distances. For a recommendation based on your specific room, resolution, and viewing preferences, use the calculator.
Free TV viewing distance calculator
Enter your TV size, resolution, and seating distance. Get an instant THX and SMPTE comparison for your exact setup.
Calculate my viewing distanceSize-specific viewing distance guides
Each page below covers the full distance breakdown for that size, including 1080p vs 4K thresholds, room size requirements, and mount height recommendations.
Learn more about the standards
FAQs about THX and SMPTE distances
What is the THX recommended viewing distance for a 65-inch TV?
THX recommends a viewing angle of 36 degrees, which means sitting approximately 8.4 feet (2.6 m) from a 65-inch TV. At this distance the screen fills your field of vision in a way that mimics a commercial cinema experience. For 4K resolution at this size, 8.4 feet is also within the pixel density threshold, meaning you will not see individual pixels.
What is the SMPTE recommended viewing distance for a 65-inch TV?
SMPTE (Society of Motion Picture and Television Engineers) recommends a 30-degree horizontal viewing angle, placing the ideal distance for a 65-inch TV at around 10.1 feet (3.1 m). This is a more relaxed standard than THX, designed for broadcast television rather than cinema. Most living room setups naturally fall within the SMPTE range.
What is the difference between THX and SMPTE viewing angle standards?
THX targets a 36-degree horizontal viewing angle for a cinema-like experience, placing you closer to the screen. SMPTE targets 30 degrees for standard broadcast viewing, placing you slightly farther back. ITU-R BT.2022 recommends an even wider range of 20-30 degrees for Ultra HD. In practice, the sweet spot for most home viewers is between the SMPTE and THX distances, roughly the midpoint of the two recommendations.
Which standard should I use for my TV setup?
Use THX if you primarily watch movies and want an immersive cinema experience. Use SMPTE if you primarily watch broadcast TV, sports, or news. For gaming, the THX distance (closer) is generally preferred because it increases peripheral awareness. For mixed use, the midpoint between the two standards works well for most people.
Does the THX/SMPTE viewing distance change for 4K vs 1080p?
The viewing angle standards themselves do not change based on resolution, but resolution affects how close you can sit before seeing pixels. With 4K, you can sit as close as the THX distance (or even closer) without noticing individual pixels on most screen sizes. With 1080p, sitting at the THX distance on larger screens (65 inches and above) may reveal pixelation. For 1080p, the SMPTE distance is the practical minimum.
Is the THX viewing distance the same for OLED and LED TVs?
Yes, the viewing angle standard applies to screen size regardless of panel technology. However, OLED panels have better off-axis viewing angles than most LED/LCD panels, meaning the picture quality holds up better if you are sitting slightly outside the recommended range. The THX/SMPTE distances remain the same calculation for any panel type.