Screen Size to Viewing Distance Calculator

SMPTE recommends a viewing angle of approximately 30 degrees, which produces a comfortable distance for extended viewing. This is the most commonly cited professional standard for TV and monitor placement.

THX recommends a 40-degree viewing angle for a more immersive experience. This places you closer to the screen than SMPTE, creating a cinema-like field of view. Best suited for dedicated home theaters.

Aspect ratio determines the screen width for a given diagonal size. A 65 inch 21:9 ultrawide screen is wider than a 65 inch 16:9 screen, so viewing distance calculations based on screen width will differ.

Yes. These viewing angle guidelines apply to any flat display regardless of technology. For projectors, this calculator helps determine optimal seating distance based on your screen size and aspect ratio.

For a dedicated home theater, use the THX distance for maximum immersion. For a multi-purpose living room, the SMPTE distance provides a good balance between immersion and comfort. The max comfort distance works if you prefer the TV to feel smaller in the room.

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